OSSHunt

Checked 2026-10-21

Slack vs Rocket.Chat Community

Fit:

Migration notes

Slack importer handles users/channels/messages; attachments need a separate pending-file download step and existing usernames can be skipped. Community edition limits remain.

Sources: docs.rocket.chat, docs.rocket.chat · checked 2026-10-21

SlackPaid incumbent

Entry priceUSD 7.25 / seat / month
Pricing modelper-seat, billed annual
OwnerSalesforce, Inc. (NYSE: CRM)

Pro standard annual price per user/month; free plan available; temporary introductory discount excluded. Source

Slack plans reviewed
ProentryUSD 8.75 / user / mo
Business+businessUSD 18 / user / mo
Enterprise+enterpriseQuote only

Rocket.Chat CommunityOpen-source alternative

Fit for Slack
License
Paid-feature tier C
Self-host
Paid-feature limits2 noted
Rocket.Chat Community plans reviewed
Communityself-hosted coreFree
Commercialcommercial self-hosted or cloudQuote only
Defensepremium enterprise suiteQuote only

What you may give up

  • Community documented for up to 100 concurrent users; vendor push capped at 10,000/month.
  • Community limited app integrations and video integrations (Jitsi/BigBlueButton only); advanced identity/governance and air-gapped offering require premium plan.

Tier C: MIT core excludes ee directories and third-party license exceptions. Proprietary premium-enabled Starter free plan (50 registered users) is separate from Community. Routine collaboration limits justify C. Current paid plans Commercial/Government/Defense; Pro became legacy April 29, 2026. License source

What running it takes

  • NATS
  • Traefik

Hover or focus an icon for its name. Dashed means not established; struck through means no; grouped icons are alternatives.

Documented default deployment path; optional services are separate from core runtime. No unverified backend alternatives asserted. Infrastructure and staff time are not priced here; this page does not compare total cost.