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Alternatives to Mattermost

Ordered by how much they overlap with Mattermost, then by score.

7 alternatives

Alternatives, ranked

  1. Discourse

    Modern open source discussion platform built for the next decade of the Internet.

    • Higher score
    • Runs on more platforms
    • No shared features
    Updated 27 days ago
    66 89.0 = Compare

  2. Rocket.Chat

    Communications platform that securely connects teams, customers, and partners via chat, voice and video.

    • Higher score
    • Runs on more platforms
    • No shared features
    Updated 12 days ago
    70 88.8 = Compare

  3. Nextcloud Server

    Self-hosted file sync and sharing platform with calendar, contacts and collaboration apps.

    • No shared features
    Updated 6 days ago
    82 88.0 = Compare

  4. Jitsi Meet

    WebRTC video conferencing application that can be self-hosted and used from the browser or mobile apps.

    • Released more recently
    • Runs on more platforms
    • No shared features
    Updated 3 days ago
    95 87.3 = Compare

  5. Zulip

    Organized team chat app with unique email-style threading to keep conversations on topic.

    • Runs on more platforms
    • No shared features
    Updated 42 days ago
    120 85.0 = Compare

  6. Synapse

    Matrix homeserver written in Python for hosting decentralized, federated chat.

    • Runs on more platforms
    • No shared features
    Updated 6 days ago
    151 80.5 = Compare

  7. Cal.com

    Scheduling infrastructure for everyone, open source alternative to Calendly with granular control.

    • Runs on more platforms
    • No shared features
    Stale: 204 days without a release
    183 63.1 = Compare