Alternatives to Slack Pro

5 existing options to compare before committing to a custom build.

• Mattermost Team EditionOpen source

  Slack-like self-hosted messaging for fewer than 250 users; you have to manage PostgreSQL, mail and backups.

• ZulipOpen source

  Team messaging organised by topic, with full history and good search.

• Rocket.Chat CommunityOpen source

  Channels, threads, files and integrations, up to 100 simultaneous users in the Community edition; requires MongoDB.

• ElementOpen source

  Matrix protocol client: encrypted rooms, threads, files and calls, usable with a free public account.

• Pumble FreeFree

  Unlimited users, channels and history with 10 GB of storage in total; group meetings and advanced integrations are paid.

Chaque lien est contrôlé (projet actif et sous licence libre, offre gratuite lue chez l'éditeur, site en ligne). Aucune alternative n'est sponsorisée.