Alternatives and similar repositories for slack

Users that are interested in slack are comparing it to the libraries listed below

• matrix-org / matrix-hookshot
  A bridge between Matrix and multiple project management services, such as GitHub, GitLab and JIRA.
  ☆353Updated last week
• JojiiOfficial / Matrix-EmailBridge
  A bridge written in Golang to receive and write emails in matrix
  ☆126Updated 2 years ago
• the-draupnir-project / Draupnir
  A Matrix community management platform
  ☆152Updated this week
• matrix-org / sliding-sync
  Proxy implementation of MSC3575's sync protocol.
  ☆281Updated last year
• maunium / meowlnir
  An opinionated Matrix moderation bot.
  ☆42Updated this week
• moan0s / matrix-registration-bot
  A bot that is used to create and manage registration tokens for a matrix server
  ☆76Updated last year
• t2bot / matrix-media-repo
  Highly configurable multi-domain media repository for Matrix.
  ☆219Updated 2 months ago
• matrix-org / complement
  Matrix compliance test suite
  ☆77Updated this week
• benkuly / matrix-sms-bridge
  Matrix bridge, that allows you to bridge matrix rooms to SMS with one telephone number only.
  ☆83Updated last year
• mautrix / googlechat
  A Matrix-Google Chat puppeting bridge
  ☆121Updated 3 months ago
• matrix-org / rust-synapse-compress-state
  A tool to compress some state in a Synapse instance's database
  ☆159Updated last month
• matrix-org / mjolnir
  A moderation tool for Matrix
  ☆395Updated 2 weeks ago
• mautrix / signalgo
  Go rewrite of mautrix-signal - This was a temporary project that has now been merged into the main mautrix-signal repo
  ☆37Updated last year
• devture / matrix-synapse-shared-secret-auth
  Shared Secret Authenticator password provider module for Matrix Synapse
  ☆88Updated last year
• nordeck / matrix-meetings
  A solution to organizing meetings in Matrix chat rooms and video conferences
  ☆88Updated this week
• vranki / hemppa
  Generic modular bot for Matrix (and via it irc, telegram, slack, etc..)
  ☆165Updated 3 weeks ago
• matrix-org / matrix-federation-tester
  Tester for matrix federation written in golang.
  ☆96Updated 11 months ago
• element-hq / chatterbox
  Chatterbox lets you securely embed Hydrogen on any website!
  ☆183Updated 8 months ago
• mautrix / docs
  Documentation for everything mautrix
  ☆59Updated last week
• anoadragon453 / matrix-reminder-bot
  A bot to remind you about stuff. Supports encrypted rooms
  ☆60Updated last week
• hifi / heisenbridge
  a bouncer-style Matrix IRC bridge
  ☆282Updated 2 weeks ago
• element-hq / matrix-authentication-service
  ☆155Updated this week
• nordeck / matrix-neoboard
  A collaborative whiteboard widget for Matrix
  ☆110Updated this week
• maubot / rss
  A RSS plugin for maubot
  ☆76Updated last month
• matrix-org / matrix-bifrost
  General purpose bridging with a variety of backends including libpurple and xmpp.js
  ☆174Updated last month
• babolivier / maubot-autoreply
  Maubot plugin for an auto-reply bot
  ☆16Updated 3 years ago
• etkecc / postmoogle
  Postmoogle is Matrix <-> Email bridge in a form of an SMTP server
  ☆43Updated 2 weeks ago
• 8go / matrix-eno-bot
  An admin and personal assistence Matrix bot built on matrix-nio and nio-template
  ☆100Updated last year
• jryans / awesome-matrix
  A curated list of things related to the Matrix ecosystem, including software, research, etc.
  ☆164Updated last year
• devture / matrix-corporal
  Matrix Corporal: reconciliator and gateway for a managed Matrix server
  ☆153Updated last month