Open Source Tools you can self-host

Stalwart JMAP

( reviews)

JMAP and IMAP server designed to be secure, fast, robust and scalable.

Stalwart JMAP review

Sshwifty

Sshwifty is a SSH and Telnet connector made for the Web.

Sshwifty review

SquirrelMail

Another browser-based IMAP client.

SquirrelMail review

SQLPage

SQL-only dynamic website builder.

StackStorm

StackStorm (aka ) is event-driven automation for auto-remediation, security responses, troubleshooting, deployments, and more. Includes rules engine, workflow, 160 integration packs with 6000+ actions and ChatOps.

StackStorm review

Squidex

Headless CMS, based on MongoDB, CQRS and Event Sourcing.

Stalwart Mail Server

All-in-one mail server with JMAP, IMAP4, and SMTP support and a wide range of modern features.

Stalwart Mail Server review

Starbase 80

A simple homepage with an iPad-style application grid, for mobile and desktop. One JSON configuration file.

Starbase 80 review

Spectrum 2

Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks.

Spectrum 2 review

Sourcehut

A full web git interface with no javascript.

Sourcehut review

SPIS

A simple, lightweight and fast media server with decent mobile support.

Spree Commerce

Spree is a complete, modular & API-driven open source e-commerce solution for Ruby on Rails.

Spree Commerce review

Speed Test by OpenSpeedTest™

Free & Open-Source HTML5 Network Performance Estimation Tool.

Speed Test by OpenSpeedTest™ review

Sonarr

Automatic TV Shows downloader and manager for Usenet and BitTorrent. It can grab, sort and rename new episodes and automatically upgrade the quality of files already downloaded when a better quality format becomes available.

SourceBans++

Admin, ban, and communication management system for games running on the Source engine.

SourceBans++ review

SolidInvoice

Open source invoicing and quote application.

SolidInvoice review

Solidus

A free, open-source ecommerce platform that gives you complete control over your store.

sourcegraph

Sourcegraph is a fast, open-source, fully-featured code search and navigation engine written in Go.

sourcegraph review

SPIP

Publication system for the Internet aimed at collaborative work, multilingual environments, and simplicity of use for web authors.

Sosse

Selenium based search engine and crawler with offline archiving.

Sorry Cypress

Alternative open-source dashboard for the Cypress browser automation framework, featuring unlimited parallelization, recording and debugging of tests.

Sorry Cypress review

SnappyMail

Simple, modern, lightweight & fast web-based email client (fork of RainLoop).

SnappyMail review

Socialhome

Federated and decentralized profile builder and social network engine.

Socialhome review

Snikket

All-in-one Dockerized easy XMPP solution, including web admin and clients.

SnyPy

Open source on-prem code snippet manager.

Slimta

Mail Transfer Library built on Python.

Soketi

Simple, fast, and resilient open-source WebSockets server (drop-in alternative to Pusher).

Snapcast

Synchronous multiroom audio server.

Snapcast review

Slash

An open source, self-hosted bookmarks and link sharing platform.

Socioboard

Social media management, analytics, and reporting platform supporting nine social media networks out-of-the-box.

Socioboard review

Smederee

A frugal platform which is dedicated to help people build great software together leveraging the power of the Darcs version control system.

Smederee review

socks5-proxy-server

SOCKS5 proxy server with built-in authentication and Telegram-bot for user management and user statistics on data spent (handy when you pay per GB of data). It is dockerised and simple to install.

socks5-proxy-server review

SOGo

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.

SIPCAPTURE Homer

Troubleshooting and monitoring VoIP calls.

SIPCAPTURE Homer review

sish

HTTP(S)/WS(S)/TCP tunnels to localhost using only SSH (serveo/ngrok alternative).

SimpleX Chat

The most private and secure chat and applications platform - now with double ratchet E2E encryption.

SimpleX Chat review

SIP Irrigation Control

Open source software for sprinkler/irrigation control.

SIP Irrigation Control review

sist2

Lightning-fast file system indexer and search tool.

Simply Shorten

A simple URL shortener that just shortens links.

Simply Shorten review

SimpleLogin

Open source email alias solution to protect your email address. Comes with browser extensions and mobile apps.

SimpleLogin review

Simple Machines Forum

Free, professional grade software package that allows you to set up your own online community within minutes.

Simple Machines Forum review

Simple-URL-Shortener

KISS URL shortener, public or private (with account). Minimalist and lightweight. No dependencies.

Simple-URL-Shortener review

SilverStripe

Easy to use CMS with powerful MVC framework underlying.

SilverStripe review

Simple NixOS Mailserver

Complete mailserver solution leveraging the Nix Ecosystem.

Simple NixOS Mailserver review

SIP3

VoIP troubleshooting and monitoring platform.

SickChill

SickChill is an automatic video library manager for TV shows. It watches for new episodes of your favorite shows, and when they are posted it does its magic.

SickChill review

sigal

Yet another simple static gallery generator.

Serendipity

Serendipity (s9y) is a highly extensible and customizable PHP blog engine using Smarty templating.

Serendipity review

Servas

A self-hosted bookmark management tool. It allows organization with tags, groups, and a list specifically for later access. It supports multiple users with 2FA. Companion browser extensions are available for Firefox and Chrome.

Shynet

Modern, privacy-friendly, and detailed web analytics that works without cookies or JS.

Shifter

A simple, self-hosted file-sharing web app, powered by Django.

SheetAble

Self-hosted music sheet organizing software for all music enthusiasts. Upload and organize your sheets for any kind of instrument.

SheetAble review

Shiori

Simple bookmark manager built with Go.

SFTPGo

Flexible, fully featured and highly configurable SFTP server with optional FTP/S and WebDAV support.

Shlink

URL shortener with REST API and command line interface. Includes official progressive web application and docker images.

ShellHub

ShellHub is a modern SSH server for remotely accessing linux devices via command line (using any SSH client) or web-based user interface, designed as an alternative to sshd.

ShellHub review

Shopware Community Edition

PHP based open source e-commerce software made in Germany.

Shopware Community Edition review

Shaarli

Personal, minimalist, super-fast, no-database bookmarking and link sharing platform.

Sharry

Share files easily over the internet between authenticated and anonymous users (both ways) with resumable up- and downloads.

Shelf

Asset and equipment tracking software used by teams who value clarity. Shelf is an asset database and QR asset label generator that lets you create, manage and overview your assets across locations. Unlimited assets, free forever.

Shhh

Keep secrets out of emails or chat logs, share them using secure links with passphrase and expiration dates.

SentryShot

Video surveillance management system.

SentryShot review

SeaweedFS

SeaweedFS is an open source distributed file system supporting WebDAV, S3 API, FUSE mount, HDFS, etc, optimized for lots of small files, and easy to add capacity.

SeaweedFS review

SearXNG

Internet metasearch engine which aggregates results from various search services and databases (Fork of Searx).

Sendmail

Message transfer agent (MTA).

Sendmail review

Seatsurfing

Webbased app to book seats, desks and rooms for offices.

Seatsurfing review

Samba

Samba is the standard Windows interoperability suite of programs for Linux and Unix. It provides secure, stable and fast file and print services for all clients using the SMB/CIFS protocol.

Scoold

Stack Overflow in a JAR. An enterprise-ready Q&A platform with full-text search, SAML, LDAP integration and social login support.

Selfoss

New multipurpose rss reader, live stream, mashup, aggregation web application.

Selenoid

Lightweight Selenium hub implementation launching browsers within Docker containers.

Selenoid review

Send

Simple, private, end to end encrypted temporary file sharing, originally built by Mozilla.

Samvera Hyrax

Front-end for the Samvera framework, which itself is a Ruby on Rails application for browsing and managing Fedora-based digital repositories.

Samvera Hyrax review

Seafile

File hosting and sharing solution primary for teams and organizations.

Sandstorm

Personal server for running self-hosted apps easily and securely.

Sandstorm review

s-cart

S-Cart is a free e-commerce website project for individuals and businesses, built on top of Laravel Framework.

Salut à Toi

Multipurpose, multi frontend, libre and decentralized communication tool.

Salut à Toi review

SCM Manager

The easiest way to share and manage your Git, Mercurial and Subversion repositories over http.

SCM Manager review

SANE Network Scanning

Allow remote clients to access image acquisition devices (scanners) available on the local host.

SANE Network Scanning review

Saleor

Django based open-sourced e-commerce storefront.

Rygel

Rygel is a UPnP AV MediaServer that allows you to easily share audio, video, and pictures. Media player software may use Rygel to become a MediaRenderer that may be controlled remotely by a UPnP or DLNA Controller.

Screego

Screego is a simple tool to quickly share your screen to one or multiple people via web browser.

SabreDAV

Open source CardDAV, CalDAV, and WebDAV framework and server.

SabreDAV review

Schleuder

GPG-enabled mailing list manager with resending-capabilities.

Schleuder review

ryot

Platform for tracking various facets of your life - media, fitness, etc.

RSSHub

An easy to use, and extensible RSS feed aggregator, it’s capable of generating RSS feeds from pretty much everything ranging from social media to university departments.

Routr

A lightweight sip proxy, location server, and registrar for a reliable and scalable SIP infrastructure.

Rukovoditel

Configurable open source project management, web-based application.

Rukovoditel review

RudderStack

Collect, unify, transform, and store your customer data, and route it to a wide range of common, popular marketing, sales, and product tools (alternative to Segment).

RudderStack review

RSS2EMail

Fetches RSS/Atom-feeds and pushes new Content to any email-receiver, supports OPML.

RSS2EMail review

RustDesk

Remote Desktop Access software that works out-of-the-box (alternative to TeamViewer).

RustDesk review

RSS Monster

An easy to use web-based RSS aggregator and reader compatible with the Fever API (alternative to Google Reader).

RSS Monster review

rustypaste

A minimal file upload/pastebin service.

rustypaste review

Roundup Issue Tracker

A simple-to-use and -install issue-tracking system with command-line, web, REST, XML-RPC, and e-mail interfaces. Designed with flexibility in mind - not just another bug tracker.

Roundup Issue Tracker review

RSS-Bridge

Generate RSS/ATOM feeds for websites which don’t have one.

RSS-Bridge review

rs-short

A lightweight link shortener written in Rust, with features such as caching, spambot protection and phishing detection.

rs-short review

RStudio Server

Web browser based IDE for R.

RStudio Server review

RhodeCode

RhodeCode is an open source platform for software development teams. It unifies and simplifies repository management for Git, Subversion, and Mercurial.

RhodeCode review

RosarioSIS

RosarioSIS, free Student Information System for school management.

RosarioSIS review

revealjs

Framework for easily creating beautiful presentations using HTML.

revealjs review

Romm

RomM (Rom Manager) is a web based retro roms manager integrated with IGDB.