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open source

practice of publishing digital resources publicly alongside their source code or source files
Class type of: information, software development Q39162

Facts

12 properties
Instance of
software development, social movement, software development methodology[4][5]
Inception
February 2, 1998[11]
Founder
Open Source Initiative, Bruce Perens, Tim O'Reilly[6][7][8]
Subclass of
information, software development
Part of
open knowledge[9]
Announcement date
February 9, 1998[20]
Different from
open-source software, open access[16][17]
Has characteristic
source file, source code, open license[13][14][15]
Hashtag
OpenSource[18]
Named by
Christine Peterson[19]
Opposite of
closed source[10]
Partially coincident with
open knowledge[12]
🏷️ Also known as
en open src en open code en open source code en open-source philosophy en open source en open-source en open source code model en open-source model ar مصدر مفتوح da åben kildekode de Quelloffen de Offener Quelltext de OpenSource de Open-Source el ανοικτός κώδικας el λογισμικό ανοιχτού κώδικα el ανοιχτός πηγαίος κώδικας el ανοιχτός κώδικας es open source es código abierto
🔖 Identifiers · 35
GND ID
4548264-0
C64-Wiki ID
Open_Source
De Agostini ID
open+source+(informatica)
ESCO skill ID
b16200f4-4f39-4b8b-aa9d-3568054d6bdb
Encyclopædia Britannica Online ID
topic/open-source
Fandom article ID
apple:Open_source
Freebase ID
/m/02wtqd4
GamesIndustry.biz tag ID
topics/open-source
GitHub topic
open-source
GitLab topic ID
open+source, open-source
Gran Enciclopèdia Catalana ID
codi-obert
Gran Enciclopèdia Catalana ID (former scheme)
0517315
Show all 35 identifiers +23
Great Norwegian Encyclopedia ID
åpen_kildekode
JSTOR topic ID (archived)
open-source
Lemmy community ID
opensource@lemmy.ml
Lex ID
open_source
NE.se ID
öppen-programvara
NicoNicoPedia ID
オープンソース
OmegaWiki Defined Meaning
363480
Open Library subject ID
open_source
Quora topic ID
Open-Source
Reddit topic ID
open_source
STW Thesaurus for Economics ID
24784-6
Subreddit
opensource
Süddeutsche Zeitung topic ID
Open_Source
TED topic ID
open-source
Topic's main category
Category:Open source
Treccani ID
open-source
Treccani Vocabulary ID
open-source
Treccani's Dizionario di Economia e Finanza ID
open-source
Vikidia article ID
fr:Open_source
X (Twitter) topic ID
849075430715936768
YSO ID
17089
Yale LUX ID
concept/dc98b6c3-cb43-43f7-b443-799755c0df71
Zhihu topic ID
19562746

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Examples 10
Apache Subversion, LLVM, Foundational Model of Anatomy, Tiki Wiki CMS Groupware, Tiny C Compiler, LiteFarm, OpenHD, OpenIPC +2 more
← Main subject 5
The Cathedral and the Bazaar, Revolution OS, Minds, Mozilla Open Source Support, Network Open Source and Data
← Copyright license 4
Unreal Engine, Tanagra, CUTEr, Communecter
Founder 3
Open Source Initiative, Tim O'Reilly, Bruce Perens
← Has characteristic 3
Reddit, iNaturalist, open architecture
← Uses 3
free and open-source software, civic technology, geOps GmbH
Different from 2
open-source software, open access
Instance of 2
social movement, software development methodology
Subclass of 2
information, software development
← Category's main topic 2
Category:Open source, Category:Open methodologies
← Different from 2
open-source software, open access
← Interested in 2
Open Source Initiative, open source movement
← Movement 2
Open Source Hardware Association, Angela Byron
Belongs to 1
open knowledge
Has these parts 1
Universal Chess Interface
Named after 1
Open and Free Technology Community
Opposite of 1
closed source
Partially coincident with 1
open knowledge
Subtypes 1
open-source architecture
Topic's main category 1
Category:Open source
← Facet of 1
history of free and open-source software
← Field of work 1
KudoAI
← Has use 1
Berlin Open Source Portal
← Industry 1
KudoAI
← Opposite of 1
closed source
← Partially coincident with 1
open knowledge
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Summary

open source is a software development[1]. It is a type of information[2] and software development[3].

Body

Outcome and Impact

Things named for open source include Open and Free Technology Community[21], an IRC network[22], founded in 2001[23].

Why It Matters

Entities named for open source include Open and Free Technology Community[21], an IRC network[22], founded in 2001[23].

Related Entities

Bruce Perens geOps GmbH KudoAI Network Open Source and Data OpenHD OpenIPC open-source software Reddit software development Tim O'Reilly Unreal Engine wifibroadcast NG

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [8] ↑ . wikidata.org.
  6. [2] ↑ . wikidata.org.
  7. [3] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . perens.com. perens.com. Provenance: wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . perens.com. perens.com. Provenance: wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [21] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [22] ↑ . Wikidata. wikidata.org. → on this site
  2. [23] ↑ . Wikidata. wikidata.org. → on this site

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). open source. Retrieved November 1, 2026, from https://4ort.xyz/entity/open-source
MLA “open source.” 4ort.xyz Knowledge Graph, 4ort.xyz, 1 Nov. 2026, https://4ort.xyz/entity/open-source.
BibTeX @misc{4ortxyz_open-source_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{open source}}, year = {2026}, url = {https://4ort.xyz/entity/open-source}, note = {Accessed: 2026-11-01}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): open source — https://4ort.xyz/entity/open-source (retrieved 2026-11-01)

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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. 23w ago · Twofivesixbot bot · 2026-05-19 view diff on Wikidata ↗
    Different from → open-source software, open access
    Named by → Christine Peterson
    Subclass of → information, software development
    Instance of → —
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|11 */ YSO ID: 17089, mv to monolingual text names on YSO statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.