Open source focus

Open Source Alternatives to Uigreen

7 open source Sustainability options similar to Uigreen, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Cardano55
Blockchain
A secure, scalable, and sustainable proof-of-stake blockchain platform for decentralized applications and smart contracts.
Open source · Self-hostable
Omnivore23
Consumer App
A free and open-source read-it-later service with AI-powered features and integrations.
Open source · Self-hostable
Zotero22
Research ToolsFairfax, United States
Free, open-source personal research assistant for collecting, organizing, citing, and sharing research.
Open source · Self-hostable
Openmetaverse11
Metaverse Interoperability
A non-profit organization dedicated to fostering open standards and software for a scalable, interoperable, and vendor-neutral metaverse.
Open source
Langchain-Chatchat10
Open Source
Open-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.
Open source · Self-hostable
Llmkb7
Knowledge Management
Self-hosted knowledge-graph wiki platform for teams.
Open source
XWiki2
SoftwareParis, France
Open-source enterprise wiki and collaboration software.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
CardanoA secure, scalable, and sustainable proof-of-stake blockchain platform for decentralized applications and smart contracts.	Blockchain	Open source · Self-hostable	—	—	55
OmnivoreA free and open-source read-it-later service with AI-powered features and integrations.	Consumer App	Open source · Self-hostable	—	—	23
ZoteroFree, open-source personal research assistant for collecting, organizing, citing, and sharing research.	Research Tools	Open source · Self-hostable	Fairfax, United States	—	22
OpenmetaverseA non-profit organization dedicated to fostering open standards and software for a scalable, interoperable, and vendor-neutral metaverse.	Metaverse Interoperability	Open source	—	—	11
Langchain-ChatchatOpen-source, offline-deployable RAG and Agent application built on LangChain for local knowledge base Q&A.	Open Source	Open source · Self-hostable	—	—	10
LlmkbSelf-hosted knowledge-graph wiki platform for teams.	Knowledge Management	Open source	—	—	7
XWikiOpen-source enterprise wiki and collaboration software.	Software	Open source · Self-hostable	Paris, France	—	2