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Alternatives

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Jira
Notion
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Linear
Wispr Flow
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Claude Code
Jira
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Slack

Results for Slack

Alternatives to Slack17Read the guideEditors' order

Buzz36,174 GitHub starsFeaturedSelf-hosted team chat where people and AI agents work together

Alternative to

Slack

Grok Bot

Alternative to

Slack

Grok Bot

Mattermost·39,388 GitHub starsTeam messaging for security-sensitive teams with air-gap supportAlternative to

Microsoft Teams+1Alternative to

Rocket.Chat·46,298 GitHub starsSelf-hosted team chat with voice, video, and omnichannel supportAlternative to

Microsoft Teams+1Alternative to

Zulip·26,085 GitHub starsOrganized team chat with threaded conversations, self-hostableAlternative to

Microsoft Teams+1Alternative to

Macro·4,782 GitHub starsThe open source workspace, one app for all your work.Alternative to

Notion+3Alternative to

Matrix·4,716 GitHub starsOpen protocol for secure, decentralized messaging and VoIPAlternative to

Microsoft Teams+1Alternative to

Wire·2,781 GitHub starsEnd-to-end encrypted messaging, voice, and file sharingAlternative to

Microsoft Teams+1Alternative to

Revolt·3,406 GitHub starsSelf-hosted open source Discord alternative with serversAlternative to

Discord+1Alternative to

Element·13,601 GitHub starsSecure team chat built on the Matrix open protocolAlternative to

Wire+1Alternative to

Converse.js·3,301 GitHub starsSelf-hosted web-based XMPP chat client for any serverAlternative to

Microsoft Teams+1Alternative to

Quiet·2,659 GitHub starsPeer-to-peer serverless chat app with no central serverAlternative to

Threema Work+1Alternative to

SpacebarChat·2,210 GitHub starsFree open source Discord reimplementation with full API parityAlternative to

Discord+2Alternative to

dcts-shipping·645 GitHub starsSelf-hosted Discord-style chat with encrypted DMs and voiceAlternative to

Discord+3Alternative to

Valour·400 GitHub starsOpen source Discord alternative with flexible community toolsAlternative to

Discord+1Alternative to

Twake Chat·171 GitHub starsMatrix team chat with a companion identity serverAlternative to

SlackAlternative to

Prose·59 GitHub starsDecentralized open source workplace with chat and docsAlternative to

Microsoft Teams+1Alternative to

Adapt·13 GitHub starsLightweight self-hosted messaging platform for teamsAlternative to

Microsoft Teams+1Alternative to

Also matches1

Huly27,941 GitHub starsOne open source workspace to replace Jira, Slack, and NotionAlternative toLinearNotion+2

Browse all projects

Slack

Microsoft Teams

+1

Slack

Microsoft Teams

+1

Slack

Microsoft Teams

+1

Slack

Notion

+3

Slack

Microsoft Teams

+1

Slack

Microsoft Teams

+1

Slack

Discord

+1

Slack

Wire

+1

Slack

Microsoft Teams

+1

Slack

Threema Work

+1

Slack

Discord

+2

Slack

Discord

+3

Slack

Discord

+1

Slack

Microsoft Teams

+1

Slack

Microsoft Teams

+1

Alternative to

Linear

Notion+2

Slack open source alternatives - Open Source Alternatives