Communication systems

Open-source projects categorized as Communication systems

Top 23 Communication system Open-Source Projects

  • Rocket.Chat

    The communications platform that puts data protection first.

  • Project mention: Rocket.Chat: Surprising user limit in 6.5.0 | | 2024-01-19
  • Mattermost

    Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

  • Project mention: Slack AI Training with Customer Data | | 2024-05-16

    This feel like a corporate greed play, on what should be a relatively simple chat application. Slack has quickly become just another enterprise solution in search of shareholder value at expensive of data privacy. Regulation of these companies should be more apparent to people, but sadly, is not.

    I would recommend as an alternative.

  • SurveyJS

    Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

    SurveyJS logo
  • penpot

    Penpot: The open-source design tool for design and code collaboration

  • Project mention: Release Radar ยท April 2024 Edition: Major updates from the open source community | | 2024-05-03

    Imagine designers and coders working seamlessly together. That's what Penpot aims to do. It's a tool where designers can create stunning designs, interactive prototypes, and design systems at scale. Developers then have ready-to-use code, which makes their workflows faster and more efficient. Penpot's latest version receives a new grid CSS layout, new UI, new components system, and more components. Oh and there's now light AND dark mode ๐ŸŽ‰.

  • Jitsi Meet

    Jitsi Meet - Secure, Simple and Scalable Video Conferences that you use as a standalone app or embed in your web application.

  • Zulip

    Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

  • Project mention: Slack AI Training with Customer Data | | 2024-05-16

    To all the people asking about self-hosted alternatives, I can recommend zulip[0], and this article[1] explaining why.



  • chatwoot

    Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. ๐Ÿ”ฅ๐Ÿ’ฌ

  • ZeroNet

    ZeroNet - Decentralized websites using Bitcoin crypto and BitTorrent network

  • Project mention: Its Time to make ZeroNet great again! | /r/Satoshispl | 2023-11-09

    ZernoNet project: GitHub - HelloZeroNet/ZeroNet: ZeroNet - Decentralized websites using Bitcoin crypto and BitTorrent network

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo
  • Flarum

    Simple forum software for building great communities.

  • Project mention: Posthog is closing their Slack community in favor of forum | | 2024-01-13
  • Postal

    ๐Ÿ“ฎ A fully featured open source mail delivery platform for incoming & outgoing e-mail

  • Project mention: Postal: Open-source mail delivery platform for incoming and outgoing email | | 2024-03-13
  • Listmonk

    High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

  • Project mention: Ask HN: Email List Software | | 2024-05-17
  • Mail-in-a-Box

    Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

  • Project mention: Ask HN: Do you run your own DNS servers? | | 2024-05-21

    Mail-In-a-Box (MIAB)[1] comes with a built in nameserver. I think you may use it as a standalone DNS even for the domain names whose email is not managed by MIAB. Not sure about any benefit of doing it this way though.


  • Lemmy

    ๐Ÿ€ A link aggregator and forum for the fediverse

  • Project mention: Reddit must share IP addresses of piracy-discussing users, film studios say | | 2024-01-14

    Lemmy is like Reddit and here because it has threaded comment discussions.

    It's also federated, so you can pick a server you like and have discussions with users from various servers together.

    Some Reddit apps switched to supporting Lemmy instead when they were kicked off the API.

  • Tinode

    Instant messaging platform. Backend in Go. Clients: Swift iOS, Java Android, JS webapp, scriptable command line; chatbots

  • Element

    A glossy Matrix collaboration client for the web.

  • Project mention: Discord has been using ML to determine the gender and age of some of its users | | 2024-05-13

    I'm just happy they resisted the buyout by Microsoft.

    > Matrix looks really close, but it needs ALOT of love.

    Matrix is just a protocol. Clients competing with Discord would be things like Element.

    It's no Discord (which itself is no WLM, by the way), but I sorely hope it or something open source gets there one day.

  • Gotify

    A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui) (by gotify)

  • Project mention: Gotify: A simple server for sending and receiving messages | | 2024-03-12
  • Lets-Chat

    Self-hosted chat app for small teams

  • Project mention: Group chat that doesn't allow DMs? | /r/sysadmin | 2023-06-20

    There are a few open source locally hosted chat services out there. "let's chat" is one I just came across with a quick search, running on a node.js + mongodb backend.

  • Misskey

    ๐ŸŒŽ An interplanetary microblogging platform ๐Ÿš€

  • Mailpile

    A free & open modern, fast email client with user-friendly encryption and privacy features

  • Tox

    The future of online communications.

  • Project mention: Discord has been using ML to determine the gender and age of some of its users | | 2024-05-13

    I'm a big fan of Matrix, and run a small homeserver for my family in friends. But if you really want to explore the frontiers peer to peer seems really intriguing because you don't need any server. just to name one.

  • Mailcow

    mailcow: dockerized - ๐Ÿฎ + ๐Ÿ‹ = ๐Ÿ’•

  • Project mention: Docker Compose: version` is obsolete warning | | 2024-04-29
  • Telescope

    ๐ŸŒ‹ A toolkit to quickly build apps with React, GraphQL & Meteor

  • berty

    Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network

  • Project mention: Berty: Secure P2P message app that needs no internet access or trust in network | | 2024-05-10
  • HumHub

    HumHub is an Open Source Enterprise Social Network. Easy to install, intuitive to use and extendable with countless freely available modules.

  • Project mention: List of your reverse proxied services | /r/selfhosted | 2023-12-05

    Humhub for local Facebook.

  • SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

Communication systems related posts


What are some of the best open-source Communication system projects? This list will help you:

Project Stars
1 Rocket.Chat 39,008
2 Mattermost 28,177
3 penpot 28,237
4 Jitsi Meet 21,803
5 Zulip 20,160
6 chatwoot 18,809
7 ZeroNet 18,233
8 Flarum 14,954
9 Postal 14,226
10 Listmonk 13,620
11 Mail-in-a-Box 13,334
12 Lemmy 12,841
13 Tinode 11,582
14 Element 10,690
15 Gotify 10,212
16 Lets-Chat 9,756
17 Misskey 9,543
18 Mailpile 8,777
19 Tox 8,726
20 Mailcow 8,041
21 Telescope 7,987
22 berty 7,335
23 HumHub 6,224

SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives