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QLever

SPARQL engine
CreativeWork free_and_open_source_software Q111016295
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QLever

Summary

QLever is a free and open-source software[1].

Key Facts

  • QLever is in the country of Germany[2].
  • QLever's instance of is recorded as free and open-source software[3].
  • QLever's instance of is recorded as triplestore[4].
  • QLever's instance of is recorded as SPARQL engine[5].
  • QLever's developer is recorded as Hannah Bast[6].
  • QLever's developer is recorded as Björn Buchhold[7].
  • QLever's developer is recorded as Johannes Kalmbach[8].
  • QLever's developer is recorded as Patrick Brosi[9].
  • QLever's copyright license is recorded as Apache Software License 2.0[10].
  • QLever's programmed in is recorded as Q2407[11].
  • QLever's software version identifier is recorded as 0.5.44[12].
  • QLever's software version identifier is recorded as 0.5.45[13].
  • QLever's software version identifier is recorded as 0.5.46[14].
  • QLever's software version identifier is recorded as 0.5.47[15].
  • QLever's Commons category is recorded as QLever[16].
  • QLever's language of work or name is recorded as English[17].
  • QLever was published on 2017[18].
  • QLever's official website is recorded as https://qlever.cs.uni-freiburg.de/[19].
  • QLever's official website is recorded as https://qlever.dev/[20].
  • QLever's described at URL is recorded as https://www.openstreetmap.org/user/Danysan95/diary/403095[21].
  • QLever's source code repository URL is recorded as https://github.com/ad-freiburg/qlever[22].
  • QLever's described by source is recorded as QLever: A Query Engine for Efficient SPARQL+Text Search[23].
  • QLever's described by source is recorded as Getting and hosting your own copy of Wikidata[24].
  • QLever's described by source is recorded as Evaluation of a Representative Selection of SPARQL Query Engines using Wikidata[25].
  • QLever's described by source is recorded as qEndpoint: A Wikidata SPARQL endpoint on commodity hardware[26].

Body

Publication

QLever was published on 2017[18]. QLever's language of work or name is recorded as English[17].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . github.com. github.com. Provenance: wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  12. [13] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  13. [14] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  14. [15] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.
  21. [22] ↑ . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . wikidata.org.
  25. [26] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). QLever. Retrieved May 3, 2026, from https://4ort.xyz/entity/qlever
MLA “QLever.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/qlever.
BibTeX @misc{4ortxyz_qlever_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{QLever}}, year = {2026}, url = {https://4ort.xyz/entity/qlever}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): QLever — https://4ort.xyz/entity/qlever (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/qlever · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4w ago · Github-wiki-bot bot · 2026-07-18 view diff on Wikidata ↗
    Software version identifier → 0.5.44, 0.5.45, 0.5.46 +1
    "/* wbeditentity-statements-single-property-update:1||2 */ [[Property:P348]], Update with GitHub data ([[:toollabs:editgroups/b/CB/3ce4e4a70dfe|details]])"
  2. 6w ago · Github-wiki-bot bot · 2026-07-08 view diff on Wikidata ↗
    Software version identifier → 0.5.44, 0.5.45, 0.5.46 +1
    "/* wbeditentity-statements-single-property-update:1||2 */ [[Property:P348]], Update with GitHub data ([[:toollabs:editgroups/b/CB/7a1a1b00c3e9|details]])"
  3. 9w ago · Github-wiki-bot bot · 2026-06-13 view diff on Wikidata ↗
    Copyright status → copyrighted
    Imported from → —
    Language of work or name → English
    Implementation of → SPARQL
    + 16 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-single-property-update:1||2 */ [[Property:P348]], Update with GitHub data ([[:toollabs:editgroups/b/CB/d7f1fb326c8|details]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.