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Waistline is an open source calorie tracker app with which one can scan products and easily see their ingredients (eg to avoid certain ones) as well as for tracking calorie intake, micronutrient intake (eg to limit salt intake), and macronutrient intake (eg to increase protein intake). Its probably biggest disadvantage to closed-source proprietary apps is that one can't easily enter generic foods like 'Apple' where the precise numbers don't matter and it's more or less the same for products of the same kind. code issue here

This is one of the so far rather rare opportunities where Wikidata could be very useful in the real world outside of Wikimedia projects as people could enter nutrients data on Wikidata for generic foods and Waistline could load it. This data is very useful in general and could also be used for other purposes so it's not limited to this kind of application or that particular already-popular example app.

However, the property proposal has stalled: Wikidata:Property proposal/contains nutrient. More participation there would be welcome.

See also and https://wiki.openfoodfacts.org/Ingredients_taxonomy implemented here. Prototyperspective (talk) 11:36, 6 April 2026 (UTC)Reply

If we want more data about food, having a good data model is important. If we take an apple, it has on the order of 40,000 to 50,000 different proteins that we certainly don't want to all include in apple (Q89).
We do have has listed ingredient (P4543) for ingredients and food energy (P7971) for the calories.
If you want to make progress here, the path would be to start reading the FDA and EFSA definitions of what various terms mean, probably read through the definitions of projects like OpenFoodFacts and then argue for a data model for Wikidata that plays well with the existing definitions. This is some work, asking a chatbot to give find the relevant definitions can be useful if you don't want to look them up yourself. ChristianKl ❪✉❫ 13:06, 7 April 2026 (UTC)Reply
Thanks. Those two properties are useful but they don't seem to be set on many items. Maybe somebody could import more of that data?
As for the links at the end of my postm I thought nutrients was contained in there; https://wiki.openfoodfacts.org/Translations_-_Names_of_nutrients seems to be the right OFF place and USDA also seems to have a list but I couldn't find it and the API site seems down currently.
In the property proposal there already is a list of proposed nutrients to include. The question now is if that list is fine or how it should be changed and I hope people here will participate. Prototyperspective (talk) 14:42, 7 April 2026 (UTC)Reply
Allow me to veer off on a tangent. I loathe the new USDA database for several reasons. First it doesn't list information for cooked ingredients, which for white rice has three times less food energy per unit when it is cooked. You can find them in the legacy section, but this isn't being updated. It also doesn't list provitamins like beta-carotene in the new database. If that wasn't bad enough they also stopped listing any foods that aren't "foundational". This all makes it very hard to use it for real-life purposes.
For Vitamin E, only alpha-tocopherol is listed and not alpha-tocopherol equivalents which means you get numbers that apparently might be way off. For boiled eggs the numbers are off by a factor of 5. I was told by the local oversight authority that these numbers can be influenced by factors such as enriched poultry feed, which AFAIK is done locally, but the feed cooperative doesn't publicly list this data. I only know the numbers match values measured in a laboratory. Any fresh animal produce is unlikely to be imported so this might be highly regional.
What I use for database is https://www.matvaretabellen.no/en/ . It's available in machine readable form (JSON), in an English language version, under a license for public open data. Personally I'm interested in all aspects of my nutrition, not just the calories, so I just use a spreadsheet, probably gives me a better overview than some simple calorie tracker apps. Infrastruktur (talk) 17:13, 7 April 2026 (UTC)Reply
Examples of USDA FoodCentral being dysfunctional and misleading: Carrots apparently don't have any beta-carotene or retinol-equivalents. [1] On this page it lists all the individual vitamin Es, but doesn't give us a value for alpha-tocopherol equivalents. [2] And boiled eggs list alpha-tocopherol in the legacy section, which is just one of the E vitamins. [3]. If we look at raw eggs in the new database, where did vitamin E go? [4]. Egg yolks apparently have a bunch of different vitamin Es, but last time I checked eggs contain egg yolks. [5] Infrastruktur (talk) 14:50, 8 April 2026 (UTC)Reply
Well if we get things onto Wikidata, that would finally able the open source world to adopt our data instead of USDA (which also requires users to get an API key first) for generic foods data.
I named the USDA database only in the context of how to find a reasonable comprehensive list of nutrients. This all makes it very hard to use it for real-life purposes. exactly an additional reason for why things should be available on Wikidata.
matvaretabellen.no/en/ . It's available in machine readable form (JSON), in an English language version, under a license for public open data sounds like a potential source for data to import, would be great news. Prototyperspective (talk) 18:01, 7 April 2026 (UTC)Reply
Interesting. That's an issue with that database as source for filling the proposed property. However,
  • it's not reasoning to not create the new property
  • it's an extra reason to create that property and get its data into Wikidata since USDA which is used by open source apps for generic foods currently is so bad
Prototyperspective (talk) 18:03, 8 April 2026 (UTC)Reply
I found another good comprehensive set of nutrition data the "Composition of foods integrated dataset (CoFID)" - https://www.gov.uk/government/publications/composition-of-foods-integrated-dataset-cofid . This one is available as an excel spreadsheet. Infrastruktur (talk) 19:08, 10 April 2026 (UTC)Reply
Amazing, thanks a lot – this one looks promising. Would probably be best to try to get the best out of the ~3 resources available with such data other than OFF. Prototyperspective (talk) 12:32, 15 April 2026 (UTC)Reply
I have tried on several occasions to build an app around the USDA FoodData Central. It works but is not the best. I think what youre doing would be a huge help to Wikidata so we can import the USDA and other sources so we do have the best data available and for free.
has listed ingredient seems like a good place to store these, we can edit that property if theres nutrients you want to add to be valid. Youll just have to think of a model. A McDonald's Cheeseburger (sorry, im American) is really 1 bun, 1 beef patty, and 1 slice of cheese, which each have their own nutrient makeup. So a WD item of "McDonald's Cheeseburger" wouldnt have the nutrients direct. Youd use `has part(s)` bun, patty, cheese which each has their respective nutrients.
At least that's how i'd model it. Of course its your project so just nake sure what you decide is documented somewhere! GA Kevin (talk) 17:28, 7 April 2026 (UTC)Reply
Agree. And yes that's a good point: maybe many items would get ingredients specified and only those ingredients would have nutrients specified. However, I don't know if this impedes practical use eg making queries far far more complex and long to load since one also has to consider weight and quantity of ingredients. However, the subject here is not yet so broad I think: for now it's just for things like nutrients in 1 carrot or 1 apple (maybe average sour and average sweet type but one could also just specify a default specific product for the types). Regarding the Cheeseburger example, I don't know if the nutrients of the separate parts are known but the official site about the product has nutrients information for the product overall. However, this kind of product is not where this would be most valuable and useful – it's generic foods, not specific ones that are missing in OpenFoodFacts-based open source apps. It's not my project by the way; I didn't even make the property proposal but I see how it's super valuable and could be one of the first ways Wikidata gets widely used outside of WM. And the model for that property proposal is quite clear as far as I understood it: a property that can be added to items with a list of nutrient being possible values that each require a certain qualifier for the amount as in the examples. Prototyperspective (talk) 13:04, 8 April 2026 (UTC)Reply
Well modeling with the ingredients would avoid duplication across items. For instance, if McDonald's uses the same beef patty for it's hamburger and cheeseburger, you'd be able to update one item (the patty) if it ever changes, instead of changing every instance where it is used. I understand your goal is generic foods at first, just an example! Querying should be fairly straight forward now that we can query for specific values on specific items (in this case only nutrients, I wouldn't query the statement of `start date` for example for a cheeseburger, though another researcher / project may find that useful on the QID page.
I'm glad you point out OpenFoodFacts, I think that + USDA + some web scrapers could be of massive benefit to Wikidata. OpenFoodFacts would require some serious parsing as every variant is it's own thing, but there's a lot of useful information there, in a compatible license, with an API. It's truly a goldmine for an import.
Let me know when you start this, I'd be interested in contributing to the import. I'm currently working on uploading every NBA and MLB game but that should be in maintenence mode by the time this kicks off. Im on the Wikidata Telegram or on Signal (Kevin.6614). GA Kevin (talk) 14:06, 8 April 2026 (UTC)Reply
It is bound to vary by country, there are different recipes Secretlondon (talk) 22:22, 12 April 2026 (UTC)Reply
So far 0 additional contributors have participated in the property proposal. Prototyperspective (talk) 10:17, 19 April 2026 (UTC)Reply
I replied on the issue of a controlled vocabulary. And the issue of a definition of what is a nutrient is not a show-stopper since that's covered by said vocabulary. If @Shisma: and the rest of the nutrition dilettantes (a group I count myself in) can get behind not using an intentionally enshittified database like USDA for data import (you can thank lobbyists for this) I'll be more than happy to give my supporting vote. Literally any other database will do. If they insist on importing data from USDA I can't support the proposal as spreading incomplete nutritional data is tantamount to misinformation! Infrastruktur (talk) 10:37, 20 April 2026 (UTC)Reply
Yes, thanks for participating! (You already commented there earlier.) I have no issues with excluding various databases if their data quality is deemed too low. However, I think that's somewhat separate to the property itself and I wonder how one would populate the prop otherwise. I think there are two links here to other databases that could be used but I wonder how much data they have. I don't think there is insistence on importing data from USDA or any similar call – just so far there was no other known database with generic foods nutrients data other than it, you help in locating additional ones has been great. I do wonder though if one could import from USDA in some selective / smart way where data for some types of items are imported from there (ideas on how to identify good-quality items would be nice).
No objection to avoiding USDA unless some consensus – or rather a solution to the data quality issues (assuming they do exist and I haven't done sufficient verification efforts to say for sure but it seems to be a genuine concern) – is developed for some selective import from their database. Prototyperspective (talk) 13:22, 20 April 2026 (UTC)Reply
Here's a list over all the european FCDBs: https://www.eurofir.org/food-information/food-composition-databases/ . Supposedly they all use the same controlled vocabulary, which means you will be able to complement with data from any of them. The british one contains items like Marmite and the Swedish one contains items like Surströmming which you probably won't find in any of the others. Infrastruktur (talk) 22:02, 20 April 2026 (UTC)Reply

I can't help but notice this gadget seems to produce an extremely high amount of constraint errors and poor data from Russian Wikipedia that others users are expected to clean up after. I feel like it's getting to a point where the existence of the gadget is actively harmful to Wikidata

Anything we can do about it? Trade (talk) 22:11, 12 April 2026 (UTC)Reply

Evidence (diffs, contributions)? --Matěj Suchánek (talk) 06:38, 13 April 2026 (UTC)Reply
https://www.wikidata.org/w/index.php?title=Q137690865&diff=prev&oldid=2481470290&diffmode=source
https://www.wikidata.org/w/index.php?title=Q681319&diff=prev&oldid=2473039060&diffmode=source
https://www.wikidata.org/w/index.php?title=Q137690865&diff=prev&oldid=2481471072&diffmode=source
https://www.wikidata.org/w/index.php?title=Q681319&diff=prev&oldid=2473039060&diffmode=source Trade (talk) 16:41, 14 April 2026 (UTC)Reply
I often see this with award received (P166) as well: grade of an order (Q60754876) is already present, but then the order itself is added via the gadget. RVA2869 (talk) 07:48, 15 April 2026 (UTC)Reply
https://www.wikidata.org/w/index.php?title=Q139373327&diff=prev&oldid=2482508340&diffmode=source Trade (talk) 19:22, 17 April 2026 (UTC)Reply

@Matěj Suchánek:--Trade (talk) 03:09, 19 April 2026 (UTC)Reply

Dear Team, I got the page that say any institution or organization can donate their data - so I have organization (Non Profit) they has data nut dont know how to donate - and also what kind of data can be donated - if there is any guide then would be better Riddhiborisagar (talk) 09:37, 15 April 2026 (UTC)Reply

Could you summarize what the data contain, what institution you worked for and the format of the data you have? What field your organization work for? Yamato Shiya大和 士也 (Talk • Contribs) 04:46, 22 April 2026 (UTC)Reply

Wikidata:Database reports/Recent deaths/charts does not display anything – should it be deleted or could somebody fix it? Maybe other database reports are also affected by this. Prototyperspective (talk) 12:30, 15 April 2026 (UTC)Reply

The technology behind it, the Graph extension, got disabled years ago. The successor doesn't offer Wikidata support and will probably get it in 25 years, so till then they will be broken. Sjoerd de Bruin (talk) 19:38, 17 April 2026 (UTC)Reply
Thanks for the info. Would be good to add that info to the page then instead of having a blank page. Prototyperspective (talk) 14:34, 20 April 2026 (UTC)Reply

We have separate Wikidata items for most, but not all, chapters of Anne Bradstreet and her time, e.g. Anne Bradstreet and her time/Chapter IV (Q138301957). This seems excessive to me, but according to Wikidata's notability requirements, "The status of subpages of [Wikisource] mainspace pages (for example, individual chapters) is undetermined." Can we please make this status determined one way or the other? One major downside to having these as separate Wikidata items is that we then need to maintain the proofreading status of every chapter separately, which is just extra work. I don't really see any practical purpose to having these chapter items (as interwiki links are better handled at the book level). My suggestion would be that we say Subpages of mainspace pages (for example, individual chapters) are not considered valid unless they are written by separate authors or could be considered stand-alone works. Nosferattus (talk) 21:31, 17 April 2026 (UTC)Reply

Re: "unless they are written by separate authors or could be considered stand-alone works" would apply to poems, plays, short stories, letters, speeches, forewords and introductions, and a lot of other things. But there are additional items that probably should have data items that aren't covered in that. The cantos of Dante's Divine Comedy, should probably have listings; the individual stories in Ovid's Metamorphoses; the books of Homer's Iliad. Each of these has been translated in part by various authors and there would be no other way to interconnect the various translations. So where do we draw the line? --EncycloPetey (talk) 22:12, 17 April 2026 (UTC)Reply
@EncycloPetey: So how about ... unless they are written by separate authors, could be considered stand-alone works, or have been translated separately.? Does that work? Nosferattus (talk) 22:39, 17 April 2026 (UTC)Reply
I'm more or less fine with that wording, but of course I think we should be generous with allowing for edge cases. I'd be fine with allowing separate wikidata items for each canto of Inferno, or each book of Euclid's Elements, or even each Act of a Shakespeare play. I think the qualifiers you use in this is both broad enough to offer flexibility and specific enough to avoid a new item for every chapter of every book ever. -- Mathmitch7 (talk) 19:59, 25 April 2026 (UTC)Reply
I created them mainly because many pages redirect to them, and those pages are themselves connected to Wikidata items. For example, s:en:Anne Bradstreet and her time/Chapter IV is target of the following redirects:: s:en:Upon Some Distemper of Body is connected, and s:en:Before the Birth of One of Her Children is also connected. If the targets are not connected to Wikidata items, then these redirects will end up in Wikidata:Database reports/Sitelink to redirect with unconnected target. KenntnisseSchüler (talk) 10:05, 18 April 2026 (UTC)Reply
It's fine if they show up in that report. It isn't expected that all cases in that report are solvable. It's just a list to review for cases that probably need either a redirect resolved to the target or a new Wikidata item added, but some cases are neither. Thus why the instructions say "For most cases, one of these two solutions exist". Another option is to create separate Wikisource pages just for those poems. If the poems are notable enough to need a redirect, they are presumably also notable enough to stand as separate Wikisource texts. Nosferattus (talk) 16:04, 18 April 2026 (UTC)Reply
But that often won't be the case. On English Wikisource we have many instances of linking Shakespeare quotes to particular places in plays that contain the quotes. Since this is a related issue, ought we to have Wikidata items for those quotations, independent from any specific page or text on Wikisource? I'm looking for ideas on how best to handle such situations, because it's a related issue and fairly common for certain authors, and might be relevant to Wikiquote as well. --EncycloPetey (talk) 18:08, 19 April 2026 (UTC)Reply
wikisource has 660k pages, wikiquote 1/10 of that, so we could have items for every quote, but I doubt we'd want items for sub-pages in other wikis, like the wikisource chapters are. Vicarage (talk) 18:38, 19 April 2026 (UTC)Reply
@EncycloPetey: That's totally fine. Just don't create Wikidata items for the chapter that the quote is in simply because it contains a famous quote. Just create a Wikidata item for the quote and sitelink it to the chapter (or a redirect to the chapter). There's no policy or guideline saying that sitelinks have to be notable in and of themselves or have their own Wikidata items. And if a chapter has multiple notable quotes or poems we wouldn't be able to interwiki link them all anyway, so I don't think that should be an expectation. Although interwiki links sometimes work for subpage content, it's not what they are intended for. Nosferattus (talk) 00:48, 21 April 2026 (UTC)Reply

These are the pages of Wikipedia: https://ja.wikipedia.org/wiki/タイガーマスク二世, https://ar.wikipedia.org/wiki/النمر_المقنع, https://it.wikipedia.org/wiki/Uomo_Tigre_II. Can you unite in a single one "Tiger Mask II": (Q4006163), (Q28692707). Thank you. Despandos (talk) 10:49, 18 April 2026 (UTC)Reply

Hi, I think it's fine as-is. Tiger Mask II (Q4006163): Japanese anime television series is the TV anime whereas Tiger Mask II (Q28692707): Japanese manga series is the original manga. Yirba (talk) 11:09, 18 April 2026 (UTC)Reply
Tiger Mask (Q1211572): 1969 television anime, by the way, is the predecessor series. Yirba (talk) 11:10, 18 April 2026 (UTC)Reply
"Tiger Mask II" is an anime series, while "Tiger Mask" is a manga and anime series. Despandos (talk) 11:18, 18 April 2026 (UTC)Reply
There is also a Tiger Mask II manga series too, no? Yirba (talk) 11:27, 18 April 2026 (UTC)Reply
Yes, but that was an adaptation in manga of the anime series, unlike "Tiger Mask" which was the contrary. Despandos (talk) 11:34, 18 April 2026 (UTC)Reply
According to the Japanese wiki article the manga came first. The Italian wiki article and the English wiki article for the main series make no mention of the sequel manga series for whatever reason. The other issue is that Tiger Mask (Q1211572) is a big conflated mess that I haven't got round to fixing yet. —Xezbeth (talk) 05:16, 20 April 2026 (UTC)Reply
Thank you, but can you edit the it, ja and ar Wikipedias in both of them? Despandos (talk) 06:27, 20 April 2026 (UTC)Reply

Hey Wikidata community

Around 3.5 years ago, User:Pasleim retired from editing Wikidata, and shortly before he left he handed over his tool and bot accounts to me (User:DeltaBot, User:PLbot, and some tools such as harvesttemplates and reCh that are running under https://pltools.toolforge.org/).

While I can and do operate the Python bots which are meanwhile fully consolidated under the User:DeltaBot account, I do not have sufficient Javascript skills to maintain Pasleim’s Toolforge tools. Thus, I am looking for an experienced co-maintainer for the pltools and plnode tools. I would expect the co-maintainer to be a seasoned Wikidata editor and tool operator with proven experience in Javascript.

The source code is pretty much unchanged since Pasleim has left, and due to API changes the tools are meanwhile not operational any longer. There is certainly some clean-up required on Toolforge, and some changes are necessary to fix the tools.

If you are interested and feel qualified, feel free to answer here, or to write an email to me via Special:EmailUser/MisterSynergy. —MisterSynergy (talk) 11:50, 18 April 2026 (UTC)Reply

Count me in as interested, but would love to tackle them together with someone else so we can review each other's code. Sjoerd de Bruin (talk) 15:34, 18 April 2026 (UTC)Reply
Nice to hear, and fine with me of course. If you happen to know someone who would fit, feel free to invite them to this discussion. —MisterSynergy (talk) 22:36, 20 April 2026 (UTC)Reply
I can help co-maintaining the tools. I'm using them often, and familiar with JS. I think the recent issues with the tools are mostly due to DB changes, requires some revisit of the DB queries. Eran (talk) 09:49, 24 April 2026 (UTC)Reply
Thanks for looking into it and this post! Please see W373: Continue the development of the Harvest Templates tool that allows importing data to Wikidata (voting open) in the ongoing Community Wishlist; it also has some info why this is important and when it comes to Wikidata in specific top impact stuff. Further info/background at Wikidata:Project chat/Archive/2025/10#How can Wikidata be useful IRL if it has less data than Wikipedia?. Prototyperspective (talk) 11:55, 20 April 2026 (UTC)Reply
I suspect the only reason Pascal chose React for harvesttemplates was to learn it, which is a reason I can get fully behind. It otherwise makes little sense to use an SPA framework for something that isn't highly interactive. So the tool might benefit from a rewrite if a developer who is into the KISS principle is so inclined. Infrastruktur (talk) 11:06, 24 April 2026 (UTC)Reply
Would you also be interested here? As of now, User:Sjoerddebruin and User:ערן (Eran) have raised their hands that they are at least interested and rather soon I would like to talk to them regarding the future setup.
We have full access to the current tool, and from a simple fix to a full rewrite everything is possible. I am not sure how the current production code relates to the code referenced at his Github account, as the inventory of the tool account is a bit messy and apparently not cloned from Github. Anyways, most of his code is CC0 "licensed".
I can’t tell what Pasleim’s intention was in the past, I just managed to offer co-maintainership to him when he was about to leave (it kinda was a one-year-long foreseeable event) and I think he gladly accepted in order to keep the tools around, without him being around at the same time. —MisterSynergy (talk) 14:53, 24 April 2026 (UTC)Reply
I offer some help, but not as the chief maintainer.
I made some contributions to harvesttemplates long time ago, before the rewrite.
reCh has not changed much since its first version. I have regularly used it for a few years, and I think after the security incident some elements stopped working. Let's if we can fix that, otherwise if we were to rewrite, I'd recommend it as a user script integrated to the Wikidata interface. --Matěj Suchánek (talk) 09:11, 25 April 2026 (UTC)Reply

Hello, I'm new here and the merging process seems complicated.

It seems to me that the pages https://fr.wikipedia.org/wiki/Annonceur and https://es.wikipedia.org/wiki/Anunciante should be linked (the same page in two languages).

However, I think the German translation is incorrect because it refers to a different concept (related to cooking, not advertising) : https://de.wikipedia.org/wiki/Annonceur

It seems that the pages need to be merged/unmerged... I'm not sure I fully understand the process. ~2026-23850-80 (talk) 08:40, 19 April 2026 (UTC)Reply

This has been fixed - I created a new item for the German term (I couldn't find anything like this kitchen position in other languages, but it may be a duplicate of something else), and merged the French and Spanish ones. See Q2851757. ArthurPSmith (talk) 16:12, 20 April 2026 (UTC)Reply

If you (a) use QuickStatements, and (b) use it by submitting batches programmatically to the API (as opposed to copy/pasting them into the UI), are you able to offer help to someone who's having trouble getting this to work? Or, if this isn't the right place to ask, can you suggest a better place for asking about QuickStatements? Thanks! —scs (talk) 14:32, 19 April 2026 (UTC)Reply

Hello, discussions regarding Version 1.0 and 2.0 can be found at
and discussions regarding Version 3.0 at
M2k~dewiki (talk) 16:09, 21 April 2026 (UTC)Reply
Thanks. I and another user have had the same query at Help talk:QuickStatements for weeks, with no response. I guess I'll give QuickStatements 3 a try. —scs (talk) 02:38, 22 April 2026 (UTC)Reply
Okay, QuickStatements 3 is working for me. It's too bad about QuickStatements 2 — it's got one feature I really wanted to use, but that's the one that's broken, seemingly irretrievably. —scs (talk) 13:48, 25 April 2026 (UTC)Reply

Are clock (Q376) and timepiece (Q42622779) duplicate items? Could they be merged?-- Carnby (talk) 08:43, 20 April 2026 (UTC)Reply

Q376 once was labeled "clock" in English - that was changed last July in this edit. Q376 is listed as a subclass of Q42622779, but I'm not entirely convinced the distinction is there clearly in the many language wikilinks on Q376. Not sure what's best here, but a merge might make sense (after removing the subclass relation). ArthurPSmith (talk) 16:16, 20 April 2026 (UTC)Reply
No, in Dutch the difference is clear:
  • clock (Q376) is a clock, a (mechanical or electronic) device that tells the time
  • timepiece (Q42622779) is "clockwork", ie. the mechanics inside a clock or any other timing device
- Erik Baas (talk) 16:39, 21 April 2026 (UTC)Reply
I think a clock is an example of a of timepiece. If the Dutch term for clockwork is linked to timepiece then that's a mistake. Secretlondon (talk) 07:17, 22 April 2026 (UTC)Reply
Here's your quick overview of what has been happening around Wikidata in the
week leading up to 2026-04-20. Missed the previous one? See issue #727.

Discussions

  • Open request for adminship: Yamato Shiya - RfP scheduled to end after 26 April 2026 11:10 (UTC)
  • Closed request for adminship: ZI Jony 2 - Closed as successful

Events

Press, articles, blog posts, videos

Tool of the week

  • Depictor by Hay Kranen is a tool that add structured data statements to Wikimedia Commons using a game-like interface

Other Noteworthy Stuff

  • What is Wikidata? - Library Carpentry is part of The Carpentries, a registered non-profit teaching foundational coding and data science skills. They recently updated their introductory course to Wikidata and knowledge graph concepts.

Newest properties and property proposals to review

You can comment on all open property proposals!

Did you know?

Development

You can see all open tickets related to Wikidata here. If you want to help, you can also have a look at the tasks needing a volunteer.

Weekly Tasks

I noticed this morning while cleaning up items that have the same Library of Congress authority ID (P244) that constraint violation flags no longer seem to appear on items that violate the unique value constraint. This is an example pair: Geo. L. Rapp (Q94413386) and George W. Leslie Rapp (Q84562141). I took a look in Phabricator and couldn't find an issue for this, but I'm not very techy so it's very possible I've missed it. I first noticed this happening at least a couple weeks ago, and figured someone was working on it. Since it hasn't been resolved yet, I figured I should check in. Is this happening to anyone else? If so, are there plans to fix this?

I also noted that the constraint report for one of these items has a lot of "This SPARQL query resulted in an error" messages, and that seems like it could be related. Mcampany (talk) 15:22, 20 April 2026 (UTC)Reply

This seems to have been fixed. Thanks! Mcampany (talk) 14:58, 21 April 2026 (UTC)Reply

Hi, I want to extract grave information and stumbled accross Gaspard de Prony (Q451608) and Sophie Germain (Q7103):

  • Both have 2 place of burial (P119), namely
    • the cemetery with qualifiers and
    • an individual grave object (with again all the stuff) and

furthermore a separate

this is three places for the burial stuff.

there are 88 items having

What is the primary modelling scheme for graves? Do we, when we are nor sure how to model, model all the alternatives? Is there a process (provided former questions being answered properly) to get rid of parallel modelling alternatives (including streamlining personal tastes to a single alternative)? best --Herzi Pinki (talk) 21:11, 20 April 2026 (UTC)Reply

Hi, it's probably specific to Père-Lachaise cemetery for historical reason. Some wikimedians asked me to stop what I was doing on Commons and created Wikidata items for graves. That's why the info is now duplicated. Pyb (talk) 21:36, 20 April 2026 (UTC)Reply

https://www.wikidata.org/w/index.php?title=Special:WhatLinksHere/Q137008561&limit=500&offset=0%7C132008129&dir=next (https://archive.ph/k2PbE)

each item here has mul-label "en" and seems to have part of BLOD: Biomedical Linked Open Datasets, at least each links there.

The creator of the items is User:Sanalatif0806 who also created "BLOD: Biomedical Linked Open Datasets (Q137008561)", the latter has "author name string" = "Sana Latif, Maria Angela Pellegrino", publication date 2025 and several claims "has part", but no evidence for that has been provided.

And several items, including those that existed before 2025, received part of BLOD, e.g. Basic Formal Ontology (Q4866972), that is where I found BLOD and then the related items.

A bot (User:MsynABot) protected the BLOD-item https://www.wikidata.org/w/index.php?title=Special:Log&page=Q137008561 22:02, 27 February 2026 MsynABot talk contribs protected BLOD: Biomedical Linked Open Datasets (Q137008561) [Edit=Allow only autoconfirmed users] (indefinite) (Highly used item: to be indefinitely semi-protected per Wikidata:Protection policy#Highly used items; please use Template:Edit request on the item talk page if you cannot edit this item

Maybe it would make more sense to protect Basic Formal Ontology (Q4866972) from adding nonsense to it than such a publication as BLOD. GraphControl (talk) 12:12, 21 April 2026 (UTC)Reply

FYI Wikidata:Requests for comment/External identifier sorting - To fix several flaws of Wikidata:Requests for comment/Sort identifiers and MediaWiki:Wikibase-SortedProperties GraphControl (talk) 18:43, 21 April 2026 (UTC)Reply

Since the proponent's account has been globally locked for socking, should this RfC be closed as void? Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 13:53, 25 April 2026 (UTC)Reply

Hello Project chat,

We are excited to announce that Wiki Loves Bangla 2026 has started! This year’s theme focuses on Bengal festivals, inviting participants to capture and share images and videos of the diverse cultural celebrations across Bengal.

Wiki Loves Bangla is an international photography contest on Wikimedia Commons aimed at documenting Bengali culture and heritage worldwide. It is organised annually as part of the Bangla Culture and Heritage Collation Program, with a dedicated theme each year.

How You Can Participate, it's easy and simple, and every upload contributes to the world's largest free knowledge repository:

Winning image from Wiki Loves Bangla 2025. Attribution: Ashraf747 / CC BY-SA 4.0
  • Capture: Take photos or videos of Bengal festivals.
  • Upload: Share your files to Wikimedia Commons between 14 April and 15 May 2026.
  • Win: A total of USD 1,100 in prizes.

Ready to get started? Click here to upload your media, or visit the main project page for full details.

Your contributions help document and preserve Bengal’s rich cultural heritage for the world.

For any questions, email us or join our Telegram group.

Warm regards,
Wiki Loves Bangla Team.

#WikiLovesBangla

~Moheen (keep talking) 20:28, 21 April 2026 (UTC)Reply

Hello everyone,

I am writing to inform the community about a planned expansion of my bot's activities (User:Maris Dreshmanis).

I plan to add missing labels, descriptions, and aliases for occupation items (instances/subclasses of profession (Q28640)) in underrepresented languages.

GSCO (Global Standard Classification of Occupations) — a multilingual occupation database I have compiled from 50+ national occupation registries. All data comes from legally authoritative government sources (national statistical offices, ministries of labor), not machine translation. My sources include:

  • ESCO (European Skills, Competences, Qualifications and Occupations) — 28 EU languages
  • National registries: Turkey (ISCO-TR), Brazil (CBO), India (NCO), Indonesia (KBJI), Bangladesh (BSCO), Canada (NOC), Mexico (SINCO), Russia (OKZ), Kenya (KeSCO), and 40+ others
  • ISCO-08 codes as the universal linking key
  • Phase 1 (current): Labels for occupations in languages with low coverage (Maltese, Irish, Icelandic, etc.)
  • Phase 2: Descriptions for occupation items
  • Phase 3: Aliases from alternative occupation names in national registries
  • I run pre-validation via a local SQLite cache — every edit is checked against current Wikidata state before submission
  • I only fill empty fields — existing labels/descriptions are never overwritten
  • I use a confidence tier system: only 100% confidence edits are automated
  • I have automatic revert monitoring every 10 minutes with emergency stop
  • I use dynamic throttle: speed increases only if 0 reverts over 7 days
  • My current track record: ~4,000 edits across 27 languages, 0 reverts, 0 errors
  • Bot account: User:Maris Dreshmanis (bot flag pending, request)
  • Server: Dedicated Hetzner server, fixed IP
  • Edit rate: Currently 500/day (unflagged), I plan to gradually increase to 5,000-10,000/day after receiving the flag
  • Edit summary format: Adding label from GSCO occupation database (I: GSCO, S: ESCO)

If you have any concerns about specific edits, please leave a message on my talk page or email wikidata@marisdreshmanis.com.

I welcome any feedback or suggestions before I scale up.

--Maris Dreshmanis (talk) 09:38, 22 April 2026 (UTC)Reply

Dear all, the Czech community wants to propose a new property for a person who is responsible for the technical documentation of a building. This person is distinct from architect (P84) - an architect focuses on the overall design, aesthetics, and spatial concept of a building, while a building's "projektant" is responsible for the technical design, detailed plans, and ensuring the structure works safely and efficiently. "Projektant" is often listed alongside architects for each building in the Czech environment. The item building designer (Q106425528) seems very similar to the concept of building "projektant", but I would like to ask English, German, or other native speakers to help me find best translations for this concept, if possible - to prevent further confusion - even if it's not just one word. Vojtěch Dostál (talk) 11:59, 22 April 2026 (UTC)Reply

Note, that projektant is used also for people making documentation for roads, bridges, pipelines or powerlines and sometimes also machines, so ideally find name that covers all these professions. JAn Dudík (talk) 13:25, 22 April 2026 (UTC)Reply
Presumably the relevant article is cs:Projektant, which is linked to architectural draftsperson (Q14623005) "architectural draftsperson". It might be worth asking for input at en:Wikipedia:Reference desk/Language. TSventon (talk) 14:41, 22 April 2026 (UTC)Reply
Other kinds of creators (like sculptors or artists) don't have a dedicated property, but we use creator (P170) with qualifier object of statement has role (P3831) set as sculptor (Q1281618) or whatever. For building designers we could do the same and specify them as creator (P170) with qualifier object of statement has role (P3831) set as building designer (Q106425528).
Having a different property for every professional that participates in the creation of things is possible but it doesn't seem what we are doing.
Additionally, not only the name changes between countries. Also professions and roles change, too. For example, the statement "an architect focuses on the overall design, aesthetics, and spatial concept of a building, while a building's "projektant" is responsible for the technical design, detailed plans, and ensuring the structure works safely and efficiently" isn't true in Spain, where architects are also responsible for the technical documentation of buildings. It might be difficult to find a property that could be applied across enough countries to be useful. Pere prlpz (talk) 18:39, 22 April 2026 (UTC)Reply
structural engineer (Q2305987) is the common term in the UK Vicarage (talk) 04:49, 23 April 2026 (UTC)Reply
There is a problem with qualifier of qualifier.
If I know that the designer Trojská lávka (Q102227957) is Lukáš Vráblík (Q106086846) then there is no problem putting it as creator (P170), object of statement has role (P3831)/subject has role (P2868)=architectural draftsperson (Q14623005)
But how to write that the projektant of the reconstruction Barrandov Bridge (Q4041206) is Milan Šístek (Q95482750)? The reconstruction can be given as significant event (P793)=reconstruction (Q2478058) with qualifiers from-to and then there should be projektant, but in this case we need separateproperty, otherwise we must use designer or architect again.
structural engineer (Q2305987) is subcalss od projektant, is possible to use it for bridge or some other structures, but his give no sense for another types of constructions - commons buildigs, road, railroads, water canals ats. My profession is projektant, but I am certainly not structural engineer (Q2305987). JAn Dudík (talk) 06:45, 24 April 2026 (UTC)Reply
We don't need qualifiers of a qualifiers but just two qualifiers to the statement. We could use creator (P170) with object of statement has role (P3831) qualifier to specify the rol (projektant) and applies to part (P518) or another qualifier to specify that this role is in relation to reconstruction (Q2478058).
Please don't get me wrong: having a dedicated property for every specific role would be nice, but we would need a lot of properties. One property for projectant would only work for the Czech Republic and countries that have an equivalent role. In Spain, for example, that role doesn't exist, but we would need properties for Q6089080, Construction manager (Q16557264) and Q5808120 (or more specific items) and several roles more.
Therefore, I don't think having a property for projectant is a bad idea in itself. It's just that it's not practical to have a dedicated property for each specific role in the creation of buildings and other kinds of works. And since we don't even have a dedicated property for roles as clearly identifiable and widespread as sculptor or painter, not having properties for very specific creator roles seems the rule in Wikidata. Pere prlpz (talk) 12:54, 24 April 2026 (UTC)Reply

Hey, there seems to be a bit of ongoing drama with multilingual websites being removed from entries. I would really like to see Wikidata hold these, it solves a problem for OpenStreetMap, hopefully I'm not misunderstanding Wikidata here.

https://www.wikidata.org/w/index.php?title=Q30113&action=history https://www.wikidata.org/wiki/User_talk:Paranoid25/Archive/2025/Sep

cc @Iamcarbon @Paranoid25 CjMalone (talk) 06:44, 23 April 2026 (UTC)Reply

Can you give an example? Is this just about Jeep? The talk page doesn't have anything about this, but has lots about unhelpful merging. Secretlondon (talk) 10:38, 23 April 2026 (UTC)Reply
Including all the links for every language variant of the website serves no purpose, except to "clutter" Wikidata with external links. There's the international one (www.jeep.com), which when opened lets you choose whether to stay there or redirect to the local one. Paranoid25 (talk) 18:43, 23 April 2026 (UTC)Reply

I read Recuyell of the Historyes of Troye Recuyell of the Historyes of Troye or Recueil des Histoires de Troye (1464) is a translation by William Caxton of a French courtly romance written by Raoul Lefèvre, chaplain to Philip III, Duke of Burgundy. It was the first book printed in the English language. so I made this list/query for data we got in Wikidata: Wikidata:List of earliest books available in English. Looks like there are items with years down to 155, these probably need fixing. Additionally, maybe the book should be linked with just 1 row per book instead of the editions? The list can also be used for further data improvements and adding missing items. Prototyperspective (talk) 14:57, 23 April 2026 (UTC)Reply

Also, in this query for another language, why does it show items like Q121929842 to have publicationDate year 1001 and why is the title only in the title (P1476) property but not in the labels? Prototyperspective (talk) 15:08, 23 April 2026 (UTC)Reply

Have anyone else noticed our anatomical items being a complete mess? In most items there aren't even any attempt at differentiating between human anatomical parts and animal anatomical parts. Everything is just treated interchangeably Trade (talk) 07:58, 24 April 2026 (UTC)Reply

A query to see such items and the relevant props would be useful. Prototyperspective (talk) 09:39, 24 April 2026 (UTC)Reply
https://www.wikidata.org/w/index.php?title=Special:WhatLinksHere/Q112826905&limit=500 Trade (talk) 12:28, 24 April 2026 (UTC)Reply
https://www.wikidata.org/wiki/Special:WhatLinksHere/Q139550381 Trade (talk) 12:50, 24 April 2026 (UTC)Reply

Like just look at this: https://www.wikidata.org/w/index.php?title=Q842083#P279&diff=prev&oldid=2483650795&diffmode=source. It's a subclass of both human reproductive system and reproductive system simultaneously. As i said there is no actual modeling in place. We are just smashing random anatomical concepts together hoping nobody notices it. --Trade (talk) 15:10, 24 April 2026 (UTC)Reply

Good to raise this here, thanks. This is also an issue on Commons and on Wikipedia; "human" is left out of the title or the article / category is mostly about human-specific anatomy while scoping it differently in the lead and having contradictory categorization etc. A table I think would help improve things on Wikidata but ultimately it needs some users/wikiproject to do extensive work on that and this probably also involves editing Wikipedia & Commons, e.g. to suggest page moves or page splitting etc or maybe things are good as they are and there should just be splitting+item creation on Wikidata which get redirects in the Wikipedia section. Prototyperspective (talk) 22:04, 25 April 2026 (UTC)Reply
There's also the issue with identifiers since the vast majority are about humans rather than mammals Trade (talk) 02:38, 26 April 2026 (UTC)Reply

I have noticed a very new user with the name 'Hermeticasuperoods' has been adding entries on the pages of thousands of botanical taxa, in the 'described at URL' field P973. The field is, I believe, supposed to contain a link to a journal or book where the particular plant was described, but this user is adding links to what appears to be their own website hermeticasuperfoods.com, with details of the nutritional content. It looks like spam to me, but I don't know what to do about it. Could someone help please? Junglenut (talk) 07:37, 25 April 2026 (UTC)Reply

I reverted a couple of their entries. Držav23 (talk) 08:32, 25 April 2026 (UTC)Reply
I think we need to either mass nuke all the edits as spam, or, if that website is actually good (I can't really tell), ask them to propose a new external identifier. Ainali (talk) 08:57, 25 April 2026 (UTC)Reply
Thanks for that @Držav23, but I was thinking more along the lines @Ainali has mentioned. I'm sure there are bots that could revert the edits, I just don't know who to report this to. Junglenut (talk) 10:09, 25 April 2026 (UTC)Reply
Report at Wikidata:Administrators' noticeboard. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 12:24, 25 April 2026 (UTC)Reply
Thanks Andy, done. Junglenut (talk) 20:18, 25 April 2026 (UTC)Reply

Just wondering why JSON has been recommended here and not RDF: what are the advantages?

Wikidata:Database_download#JSON_dumps_(recommended)

My use case would involve queries (mostly akin to https://www.wikidata.org/w/index.php?search=, and editing my local copy. I would like to incrementally update my dump, rather than have to download the entire thing every time.

It's not gonna be easy, but I'm looking into / would like to experiment with contributing changes to Wikidata local-first (like `git`).

Any ideas? AddyLockPool (talk) 11:07, 25 April 2026 (UTC)Reply

A request for comment is currently being held to decide on a global AI policy. Thank you! MediaWiki message delivery (talk) 00:57, 26 April 2026 (UTC)Reply

Hello! I am the curator of Iosif Vulcan Memorial House in Holod, Bihor County, Romania. I want to add this writer's signature in ROmanian. The previous one was in Hungarian. It was not wrong - as he signed in both Hungarian and Romanian, but he was a Romanian author. [7] CMIVHolod (talk) 06:52, 26 April 2026 (UTC)Reply