Self-Hosted OSS tools — 69 tracked with release & CVE alerts

Rocket.Chat Healthy open source

The Secure CommsOS™ for mission-critical operations

neodb Healthy open source

a self-hosted server tracking what you read/watch/listen/play, powering a global distributed community federating via ActivityPub and (a bit of) ATProto.

mattermost Healthy open source

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

hollo Healthy open source

Federated single-user microblogging software

webmail Healthy open source

Webmail built for the 21st Century. A modern, self-hosted email client for Stalwart Mail Server powered by the JMAP protocol. Email, calendar, contacts and files. Fast, private, and open source.

notifuse Healthy open source

Notifuse is an open-source & modern emailing platform

stoatchat Healthy open source

The software powering Stoat

spreed Healthy open source

Nextcloud Talk – chat, video & audio calls for Nextcloud

freescout Healthy open source

FreeScout — Free self-hosted help desk & shared mailbox (Zendesk / Help Scout alternative)

tootik Healthy open source

A federated, text-based social network with a Gemini frontend

meet Healthy open source

Open source video conferencing app powered by LiveKit.

mastodon Healthy open source

Your self-hosted, globally interconnected microblogging community

stalwart Healthy open source

All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).

Haraka Healthy open source

Fast, highly extensible, and event driven SMTP server.

libredesk Healthy open source

Modern, open source, self-hosted customer support desk. Single binary app.

mailcow-dockerized Mixed open source

mailcow: dockerized - + =

ktistec Healthy open source

ActivityPub (https://www.w3.org/TR/activitypub/) server for individual users and small groups.

roundcubemail Healthy open source

The Roundcube Webmail suite

sharkord Healthy open source

Lightweight, self-hosted, open-source chat server with voice, video, text, and screen sharing. Built for small groups who want privacy, simplicity, and full control over their data.

Element Healthy open source

Fully-featured Matrix client for Web, iOS & Android.

Radicale Healthy open source

A simple CalDAV (calendar) and CardDAV (contact) server.

bigbluebutton Healthy open source

A complete web conferencing system for virtual classes and more!

Openfire Healthy open source

Real time collaboration (RTC) server.

mail-archiver Healthy open source

Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.

Mailu Mixed open source

Insular email distribution - mail server as Docker images

misskey Healthy open source

A completely free and open interplanetary-microblogging platform

typebot.io Mixed open source

Typebot is a powerful chatbot builder that you can self-host.

chatwoot Mixed open source

Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc.

converse.js At Risk open source

Web-based XMPP/Jabber chat written in JavaScript

Eonvelope Healthy open source

Preserve your emails with this open-source self-hostable email archive! This repository is a read-only mirror, please go to the gitlab repo at https://gitlab.com/Dacid99/eonvelope to contribute code.

SOGo Healthy open source

SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.

Live Helper Chat Healthy open source

Live Support chat for your website.

wildduck Healthy open source

Scalable no-SPOF IMAP/POP3 mail server.

fx Mixed open source

Micro-blog tool offering built-in syntax highlighting, mobile publishing and more (alternative to Twitter, Bluesky)

postal At Risk open source

A fully featured open source mail delivery platform for incoming & outgoing e-mail

Modoboa Mixed open source

Mail hosting and management platform including a modern and simplified web user interface.

keila Mixed open source

Open Source Newsletter Tool.

Tuwunel Mixed open source

High-performance and feature-rich chat server for Matrix, and the successor to conduwuit (fork of Conduit).

storyden Mixed open source

With a fresh new take on traditional bulletin board forum software, Storyden is a modern, secure and extensible platform for building communities.

friendica At Risk open source

Friendica Communications Platform

mailinabox At Risk open source

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.

Maddy Mail Server Healthy open source

All-in-one mail server that implements SMTP (both MTA and MX) and IMAP. Replaces Postfix, Dovecot, OpenDKIM, OpenSPF, OpenDMARC with single daemon.

mumble Healthy open source

Mumble is an open-source, low-latency, high quality voice chat software.

synapse Healthy open source

Synapse: Matrix homeserver written in Python/Twisted + Rust

MongooseIM Healthy open source

Mobile messaging platform with a focus on performance and scalability.

simplex-chat Mixed open source

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps !

core Healthy open source

Dovecot mail server

relay Mixed open source

Open-Source Email API for Developers. Self-hosted Alternative to SES, Mailgun, SendGrid.

jitsi-meet Healthy open source

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

mbin At Risk open source

Mbin: a federated content aggregator, voting, discussion and microblogging platform

Tools