shouldiselfhost?they tell you if you can — we tell you if you should
THE DECISION LAYER FOR SELF-HOSTING100 APPS UNDER COVERAGEPROTOCOL v1NO VENDOR HAS EVER PAID FOR A RATING
RECENT ACTIONS 1PASSWORDNOT REALLY·ACTIVECAMPAIGNKINDA·ACUITY SCHEDULINGYES·ADOBE ACROBATYES·ADOBE LIGHTROOMNOT REALLY·AIRTABLEYES·AMPLITUDEYES·ANYLISTNOT REALLY·ASANAKINDA
OSS
OPEN SOURCE
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Mattermost

Channels, threads and file sharing for a team, on a server you own, with no per-seat meter and no ninety-day history cliff.

mattermost/mattermost · ★ 38,721 · last commit 46d ago · MIT · needs 2048 MB RAM · no ARM builds
Mattermost running from the boot-verified compose file
Mattermost, running from the compose file on this page — screenshot from our verified instance, not marketing material.
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The same server can serve several escape hatches — that's how a $5 VPS beats a $50 SaaS bill.

Slack logoSlack$8.75/moKINDA