List of formerly open-source or free software

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This is a list of notable software packages which were published as free and open-source software, or into the public domain, but were made proprietary software, or otherwise switched to a license (including source-available licenses) that is not considered to be free and open source.

List of formerly open-source software
Title Orig. free date License change date Initial free license Non-free license Forked replacement Notes
Akka 2009 2022 Apache-2.0 Business Source License[1][2]
ArangoDB 2011 2023 Apache-2.0 Business Source License[3]
Aseprite 2001 2016 GPL-2.0 EULA that permits personal use but forbids redistribution[4] LibreSprite
CockroachDB 2015 2019 Apache-2.0 Business Source License[5]
Consul 2014 2023[6] MPL-2.0 Business Source License[6]
Couchbase Server 2010 2021 Apache-2.0 Business Source License[7]
Couchbase Mobile 2022[8] Apache-2.0 Business Source License[8]
Elasticsearch 2010 2021 Apache-2.0 "Elastic License" and Server Side Public License[9][10][11] OpenSearch Added AGPL v3.0 on 29 August 2024[12]
Emby 2014 2018 GPL-2.0 Source code closed on 8 December 2018.[13] Jellyfin
FBReader 2013 2015 GPL-2.0-or-later Apparently the number of devs was limited, and they all agreed to relicense it.[citation needed]
LiveCode 2013 2021[14] GPL-3.0-only proprietary[14] The Livecode company developed it, ran a Kickstarter campaign to GPL it, ran it for eight years open source, and then relicensed it back to proprietary, saying there were few other contributors, most were using the free GPL version, and they couldn't sustain the project.[14]
LiveJournal 1999 2014 GPL-2.0-or-later The source code was made private in 2014. Dreamwidth
MetaMask 2016 2020 MIT Custom proprietary "non-commercial use only" license.[15]
MongoDB 2009 2018 AGPL-3.0-only Server Side Public License[16][17]
Nexuiz 2005 2012 GPL-2.0-or-later Game abandoned in favour of a commercial video game of the same name, which licensed the Nexuiz title but is not based on its engine. Xonotic[18]
OctoberCMS 2014 2021 MIT Cited the sustainability of its open source model as a factor.[19] Winter[20][21]
OTRS 2001 2020 GPL-3.0-or-later Support for the Community Edition dropped on 23 December 2020,[22] Znuny
Paint.NET 2004 2007 MIT freeware license that prohibits modification or resale[23]
PyMOL 2000 2010 MIT-CMU[24] [25][26][27][28]
Reddit 2008 2017 CPAL-1.0 Source code was made private in 2017, as the internal codebase had already diverged significantly from the public one.
Redis 2009 2024 BSD-3-Clause dual: custom license and Server Side Public License[29] Valkey[30] Added AGPL v3.0 on 1 May 2025.[31] Vadim Tkachenko (co-founder of Percona) doesn't expect this move to affect Valkey, as the de facto purpose of the AGPL "appears to be creating barriers for public cloud providers, which likely guarantees that major sponsors like Amazon and Google will continue to support Valkey."[32]
Sourcegraph 2013 2023 Apache-2.0 proprietary[33]
Terraform 2014 2023[6] MPL-2.0 Business Source License[6] OpenTofu[34] HashiCorp founder considered the OpenTofu fork "tragic for open source innovation."[35]
Tux Racer 2000 2002 GPL-2.0-or-later Commercial expansion by original authors, also called Tux Racer. Extreme Tux Racer (formerly PlanetPenguin Racer)
Vagrant 2010 2023[6] MIT Business Source License[6]

See also

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References

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  24. ^ now a custom license granting broad use, redistribution, and modification rights, but assigning copyright to any version to Schrodinger, LLC.
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