Drilldown: tool
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$8.75/user/month (free tier available) (2) ·
Commercial/Government/Defense tiers are custom-priced (free self-hosted Community
edition available) (1) ·
Free events are always free. Paid tickets: ~3.7%+$1.79/ticket plus 2.9% payment
processing, no fee cap. Pro email tiers $15-100/mo (nonprofits get 50% off after
verification). (1) ·
Professional $10/user/mo; Enterprise custom pricing (self-hosted free tier available) (1)
'''Not recommended.''' Cloud-based team messaging platform with channels,
threads, and integrations. Free tier limits message history to 90 days and caps
integrations at 10. Included here for comparison against [[Mattermost]] and
[[Rocket.Chat]], the two self-hosted alternatives we do recommend. (1) ·
Cloud-based team messaging platform with channels, threads,
and integrations. Free tier limits message history to 90 days and caps
integrations at 10. (1) ·
Event listing, promotion, and ticketing -- event pages, RSVP/ticket
sales, and email promotion to an audience list. Free to publish and manage free
events with no platform fee; fees only apply to paid ticket sales. (1) ·
MIT-licensed, self-hostable team chat with channels, voice/video, and broad
integration support. Its omnichannel inbox unifies live chat, email, WhatsApp, and
Telegram into one agent queue -- useful if you also want to replace a separate
customer-support tool, not just internal chat. (1) ·
Self-hostable, MIT-licensed team chat closely modeled on Slack's channel-based
UX -- includes a Slack export/import path to ease migration. Free self-hosted tier
runs indefinitely with no per-seat licensing cost; paid tiers add SSO, compliance
exports, and HIPAA/FedRAMP-aligned deployment options. (1)
None (2) ·
Fewer native integrations than Slack out of the box -- most third-party
connections go through incoming/outgoing webhooks rather than a marketplace, so budget
some setup time. Good fit for teams that want a near drop-in Slack replacement and
value Go-based, ops-friendly self-hosting. (1) ·
Guest access available on paid plans for external collaborators.
Slack Connect allows cross-organization channels with other Slack workspaces. (1) ·
Has the most GitHub momentum of the self-hosted Slack alternatives
(~45k stars). The free Community edition covers most day-to-day needs; exceeding
Starter-plan limits blocks adding new users but does not lock you out of existing
data. (1)
Showing below up to 5 results in range #1 to #5.


