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Wikidata:WikiProject Limits of Wikidata

This WikiProject aims to catalogue the current limits of Wikidata and to extrapolate their development until about 2030.
The formula depicted here describes the resolution limit of the light microscope. After it had served science for about a century, it was set in stone for a monument. The image was taken yet more years later, but two months after that, the 2014 Nobel Prize in Chemistry was announced to be awarded for overcoming this limit using fluorescent molecules and lasers.
Which of the limits of Wikidata are set in stone, and which ones should we strive to overcome?



This Wikiproject aims at bringing together various strands of conversations that touch upon the respective limits of Wikidata, both in technical and social terms. The aim is not to duplicate existing documentation but to collect pointers to places where the respective limits for a given section are being described or discussed.


While fundamental limits exist in nature, the technical and social limits we are discussing here are likely to shift over time, so any discussion of such limits will have to come with some indication of an applicable timeframe. Since the Wikimedia community has used the year 2030 as a reference point for its Movement Strategy, we will use this here as a default as well for projections into the future and contrast this with current values (which may be available via Wikidata's Grafana dashboards). If other timeframes make more sense in specific contexts, please indicate that.





Generic Wikibase RepositoryEdit

Data typesEdit
  • Item
  • Monolingual string
  • etc.
Data formatsEdit
  • JSON
  • RDF
  • etc.

Generic Wikibase ClientEdit

Wikidata's Wikibase RepositoryEdit

Wikidata's Wikibase ClientEdit

Wikibase Repositories other than WikidataEdit

Wikibase Clients other than WikidataEdit

Wikimedia wikisEdit
Non-Wikimedia wikisEdit

Wikidata Query ServiceEdit

  • GitHub repo
  • limited support for sharding
  • not actively maintained



Wikidata usersEdit

Human usersEdit

Human Wikidata readersEdit
Human Wikidata contributorsEdit


Tools for reading WikidataEdit
Tools for contributing to WikidataEdit


Bots that read WikidataEdit
Bots that contribute to WikidataEdit

Users of Wikidata client wikisEdit

Users of Wikidata data dumpsEdit

Users of dynamic data from WikidataEdit



Linked Data FragmentsEdit


Users of Wikibase repositories other than WikidataEdit



How many triples can we manage?Edit

How many languages should be supported?Edit

How to link to individual statements?Edit


How many items should there be?Edit

How many statements should an item have?Edit


How many properties should there be?Edit

How many statements should a property have?Edit


Overview of lexicographical data as of May 2019. Does not discuss limits other than those of QuickStatements.

How many lexemes should there be?Edit

How many statements should a lexeme have?Edit


How many references should there be?Edit

How many references should a statement have?Edit

Where should references be stored?Edit

Wikidata editsEdit

Edits by nature of accountEdit

Edits by human usersEdit

Manual editsEdit
  • ...
Tool-assisted editsEdit
  • ...

Edits by botsEdit

  • ...

Edits by nature of editEdit

Page creationsEdit

Page modificationsEdit

Page mergesEdit


Page deletionsEdit

Edits by sizeEdit

Edits by frequencyEdit

Wikidata SPARQL queriesEdit

  • [Wikidata Scaling Wikidata Query Service] from Wikidata-l, 6 June 2019

Queries by usageEdit

One-off or rarely used queriesEdit

Showcase queriesEdit

Maintenance queriesEdit

Queries by user typeEdit

Manually run queriesEdit

Queries run through toolsEdit

Queries run by botsEdit

Queries by visualizationEdit

  • Table
  • Map
  • Bubble chart
  • etc.



The participants listed below can be notified using the following template in discussions:

{{Ping project|Limits of Wikidata}}