Comparison
5 alternatives to Slack
| Tool | Pricing | Self-host | Best for | Highlights |
|---|---|---|---|---|
| Discord | Freemium | Communities and small teams | Voice channels · Screen sharing · Bots | |
| Element | Open source | Security-first organizations | End-to-end encryption · Matrix federation · Self-hostable | |
| Mattermost | Open source | Regulated industries | Self-hosted · Channels & threads · Playbooks | |
| Rocket.Chat | Open source | Organizations needing full control | Self-hosted · Omnichannel inbox · Federation | |
| Zulip | Open source | Async and distributed teams | Topic threading · Self-hostable · Free for open source |
Discord
Team Chat
Voice, video and text for communities.
Freemiumvs Slack
Element
Team Chat
Secure messaging on the open Matrix protocol.
Open sourceSelf-hostablevs Slack
Mattermost
Team Chat
Secure, self-hosted team messaging.
Open sourceSelf-hostablevs Slack
Rocket.Chat
Team Chat
Open-source communications platform.
Open sourceSelf-hostablevs Slack
Zulip
Team Chat
Threaded chat that keeps conversations organized.
Open sourceSelf-hostablevs Slack