Open-source alternatives to Slack
If Slack's pricing, retention limits, or data location do not work for your org, self-hosted team chat is a practical path. Compare channels, threads, and Matrix-based options, then try one live without committing to a long contract.
- Free trial — no card required to start
- Real HTTPS URL while you evaluate
- Tear down anytime; keep or upgrade later
Curated alternatives
Slack-like team chat you can self-host.
Omnichannel team communication platform.
Threaded team chat built for clarity.
How to switch
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1
Pick an app
Choose the alternative that best matches how you use Slack.
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2
Launch a free trial
Get a real HTTPS instance in minutes — no local Docker required.
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3
Keep or upgrade
If it fits, claim the trial and continue. If not, tear it down and try another option.
FAQ
Do these support mobile apps?
Most popular alternatives ship official or community mobile clients. Check each project's site after you launch a trial.
Can I keep message history if I leave Slack?
Slack exports are possible on higher plans. Import support varies — validate with a small export during your trial.