Open source focus

Open Source Alternatives to OnFire Messenger

9 open source Messaging options similar to OnFire Messenger, 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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Signal9
MessagingWashington, United States
End-to-end encrypted messaging and voice calling app focused on privacy and security.
Open source
Archimedes52
Fintech$7.3M
Open-source lending protocol for superior capital efficiency in Decentralized Finance (DeFi).
Open source · Self-hostable
Posit67
Data Science PlatformBoston, United States$169.9M
Open-source data science platform for enterprise teams, enabling collaboration and reproducible results.
Open source · Self-hostable
Gitpod63
Developer ToolsTübingen, Germany$28.0M
Cloud Development Environments for efficient and secure team software development.
Open source · Self-hostable
Nextcloud52
Cloud ComputingNuremberg, Germany$63.0M
Open-source, self-hosted file sync and share and collaboration platform.
Open source · Self-hostable
PromptQL45
Artificial IntelligenceSan Francisco, United States
An AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
OpenProject13
Project ManagementBerlin, Germany
Open-source project management software.
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
SignalEnd-to-end encrypted messaging and voice calling app focused on privacy and security.	Messaging	Open source	Washington, United States	—	9
ArchimedesOpen-source lending protocol for superior capital efficiency in Decentralized Finance (DeFi).	Fintech	Open source · Self-hostable	—	$7.3M	52
PositOpen-source data science platform for enterprise teams, enabling collaboration and reproducible results.	Data Science Platform	Open source · Self-hostable	Boston, United States	$169.9M	67
GitpodCloud Development Environments for efficient and secure team software development.	Developer Tools	Open source · Self-hostable	Tübingen, Germany	$28.0M	63
NextcloudOpen-source, self-hosted file sync and share and collaboration platform.	Cloud Computing	Open source · Self-hostable	Nuremberg, Germany	$63.0M	52
PromptQLAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.	Artificial Intelligence	Open source · Self-hostable	San Francisco, United States	—	45
OpenProjectOpen-source project management software.	Project Management	Open source · Self-hostable	Berlin, Germany	—	13
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