open-source
modern, private communication. For iOS, Android, OS X, Windows and web. Crystal clear voice, video and group chats.
The HTTP/2 Web Server with Fully Managed TLS (automatic HTTPS).
Caddy 2 is a powerful, enterprise-ready, open source web server with automatic HTTPS written in Go
ONLYOFFICE Community Server is a free open-source collaborative system developed to manage documents, projects, customer relationship and email correspondence, all in one place.
Monitoring system & time series database. Power your metrics and alerting with a leading open-source monitoring solution.
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OpenCog is a unique and ambitious open-source software project. Our aim is to create an open source framework for Artificial General Intelligence, intended to one day express general intelligence at the human level and beyond.
Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.
The scalable, open source big data analytics platform for networks and services.
The Facebook CTF is a platform to host Jeopardy and “King of the Hill” style Capture the Flag competitions.
Code Analysis Made Easy.
coala provides a unified command-line interface for linting and fixing all your code, regardless of the programming languages you use.
Kuzzle is a open-source, self-hostable & ready to use backend for your mobile, web or IoT application.
PULPino is an open-source microcontroller system, based on a small 32-bit RISC-V core developed at ETH Zurich. The core has an IPC close to 1, full support for the base integer instruction set (RV32I), compressed instructions (RV32C) and partial support for the multiplication instruction set extension (RV32M). It implements several ISA extensions such as: hardware loops, post-incrementing load and store instructions, ALU and MAC operations, which increase the efficiency of the core in low-power signal processing applications.
NIST Certified SCAP 1.2 toolkit. The oscap program is a command line tool that allows users to load, scan, validate, edit, and export SCAP documents.
The OpenSCAP ecosystem provides multiple tools to assist administrators and auditors with assessment, measurement and enforcement of security baselines. We maintain great flexibility and interoperability, reducing costs of performing security audits.
Oh-My-Zsh is an open source, community-driven framework for managing your ZSH configuration. It comes bundled with a ton of helpful functions, helpers, plugins, themes, and a few things that make you shout...
This webapp is a browser and desktop password manager compatible with KeePass databases. It doesn't require any server or additional resources. The app can run either in browser, or as a desktop app.
Keshif is a web-based tool that lets you browse and understand datasets easily.
Mayan EDMS is an electronic vault for your documents. With Mayan EDMS you will never lose another document to floods, fire, theft, sabotage, fungus or decomposition. Its advanced search and categorization capabilities will help you reduce the time to find the information you need. It is free open source and integrates with your existing equipment, that means low to no initial investment, and even lower total cost of ownership, reducing operational costs has never been this easy. Being Open Source its code is freely available, allowing you to see how it is handling your documents if you ever need to, you will be glad you choose Mayan EDMS on your next audit. Initially released in 2011 and with thousands of installations worldwide, Mayan EDMS is a mature and time tested software you can rely on.
Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Parse Server works with the Express web application framework. It can be added to existing web applications, or run by itself.
SFLvault is a Networked credentials store and authentication manager developed and maintained by Savoir-faire Linux.
It has a client/vault (server) architecture allowing encrypted storage and organization of a multitude passwords for different machines and services.
GNU social is a continuation of the StatusNet project. It is social communication software for both public and private communications. It is widely supported and has a large userbase. It is already used by the Free Software Foundation, and Richard Stallman himself.
MJML is a markup language designed to reduce the pain of coding a responsive email. Its semantic syntax makes it easy and straightforward and its rich standard components library speeds up your development time and lightens your email codebase. MJML's open-source engine generates high quality responsive HTML compliant with best practices.
Do you want to share the links you discover? Shaarli is a minimalist bookmark manager and link sharing service that you can install on your own server. It is designed to be personal (single-user), fast and handy.
Kinto is a lightweight JSON storage service with synchronisation and sharing abilities. It is meant to be easy to use and easy to self-host.
Kinto is used at Mozilla and released under the Apache v2 licence.
🐦 A personal music streaming server that works.
Koel (also stylized as koel, with a lowercase k) is a simple web-based personal audio streaming service written in Vue on the client side and Laravel on the server side. Targeting web developers, Koel embraces some of the more modern web technologies to do its job.
automatic SQL injection and database takeover tool.
SQLmap is an open source penetration testing tool that automates the process of detecting and exploiting SQL injection flaws and taking over of database servers.
KnightOS is a third-party operating system for TI calculators. It provides a passable Unix-like system for calculators. KnightOS is built on top of the KnightOS kernel - this repository is the official userspace. KnightOS runs on the following calculators.
Web Debugging Proxy based on Chrome DevTools Network panel.
Complete open source web conferencing system.
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn.
BigBlueButton supports real-time sharing of audio, video, slides (with whiteboard annotations), chat, and the screen. Instructors can engage remote students with polling, emojis, multi-user whiteboards, shared notes, and breakout rooms. During the session, BigBlueButton generates analytics that are visible to moderators in the Learning Analytics Dashboard.
Open Source Continuous File Synchronization.
Syncthing is a continuous file synchronization program. It synchronizes files between two or more computers in real time, safely protected from prying eyes. Your data is your data alone and you deserve to choose where it is stored, whether it is shared with some third party, and how it’s transmitted over the internet.
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A tailorable jQuery plugin to deal with the EU Cookie Law.
Domain name permutation engine for detecting typo squatting, phishing and corporate espionage
Instiki is a wiki clone so pretty and easy to set up, you'll wonder if it’s really a wiki. Runs on Rails and focuses on portability and stability. Supports file uploads, PDF export, RSS, multiple users and password protection. Some use Instiki as a CMS (Content Management System) because of its ability to export static pages.
DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database. It is loved by users for its clean and readable syntax. The ease of maintenance, backup and integration makes it an administrator's favorite. Built in access controls and authentication connectors make DokuWiki especially useful in the enterprise context and the large number of plugins contributed by its vibrant community allow for a broad range of use cases beyond a traditional wiki.
YunoHost is an operating system aiming to simplify as much as possible the administration of a server.
Record and share your terminal sessions, the right way. asciinema (aka asciinema CLI or asciinema recorder) is a command-line tool for recording terminal sessions.
Unlike typical screen recording software, which records visual output of a screen into a heavyweight video files (.mp4, .mov), asciinema recorder runs inside a terminal, capturing terminal session output into a lightweight recording files in the asciicast format (.cast).
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The most advanced Penetration Testing Distribution.
Kali Linux is an open-source, Debian-based Linux distribution geared towards various information security tasks, such as Penetration Testing, Security Research, Computer Forensics and Reverse Engineering.
Fast, free and open-source spam filtering system.
Rspamd is an advanced spam filtering system and email processing framework that allows evaluation of messages by a number of rules including regular expressions, statistical analysis and custom services such as URL black lists. Each message is analysed by Rspamd and given a verdict that might be used by MTA for further processing (e.g. to reject a message, or add a special header indicating spam) along with other information, such as possible DKIM signature or modifications suggested for a message.
Grails is a framework used to build web applications with the Groovy programming language. The core framework is very extensible and there are numerous plugins available that provide easy integration of add-on features.
Grails is a powerful web framework, for the Java platform aimed at multiplying developers’ productivity thanks to a Convention-over-Configuration, sensible defaults and opinionated APIs. It integrates smoothly with the JVM, allowing you to be immediately productive whilst providing powerful features, including integrated ORM, Domain-Specific Languages, runtime and compile-time meta-programming and Asynchronous programming.
pfsense fork - Your next Open Source Firewall ! Secure Your Network with ease. From Virtual Private Networking to Intrusion Detection, Best in class, FREE Open Source Project.
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HyperJump - simple and quick bookmark tool for bash shell. I found similar projects, but nothing that was both fast, easy to use, and simple enough. I really needed a location bookmarking app because I am working on a high latency connection, and switching between directories is a pain.
Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy. Avoid writing scripts or custom code to deploy and update your applications— automate in a language that approaches plain English, using SSH, with no agents to install on remote systems.
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- Ansible: pure (only in its) pragmatism @ Andrej Radović.
- Ansible Dynamic Inventory: Types, How to Use & Examples @ spacelift.
- Ansible Register: How to Store and Reuse Task Output @ spacelift.
- Ansible Service Module: Start, Stop, & Manage Services @ spacelift.
- TXLF 2025 Sat Oct 4 - Getting Started with Ansible on Linux @ Texas Linux Fest's YouTube.
Calaos is a powerful home automation software. It features a complete set of part to automate your house from lights to shutter or even music or cameras.
Commandlinefu.com is the place to record awesome command-line snippets. This tool allows you to search and view the results into your terminal.
Discover new open source libraries, modules and frameworks and keep track of ones you depend upon.
Awesomplete is an ultra lightweight, customizable, simple autocomplete widget with zero dependencies, built with modern standards for modern browsers.
Torrent sites like Isohunt and The Pirate Bay gave us lessons that would be a crime to ignore. Individual torrent sites are easy targets. Pirate Bay open source code will give absolutely anyone with minimal knowledge of how internet and websites work and some server basic equipment, opportunity to create Pirate Bay copy on his own domain.
Simple and clean SVG icon pack with the code to support Rails, Sprockets, Node.js, Gulp, Grunt and CDN.
git pull has two problems:
It merges upstream changes by default, when it's really more polite to rebase over them, unless your collaborators enjoy a commit graph that looks like bedhead.
It only updates the branch you're currently on, which means git push will shout at you for being behind on branches you don't particularly care about right now.
Solve them once and for all.
This is the quite sad source code to the ghost town at https://lobste.rs. It is a Rails codebase and uses a SQL (MariaDB in production) backend for the database.
Free. Open Source. Powerful. Taiga is a project management platform for startups and agile developers & designers who want a simple, beautiful tool that makes work truly enjoyable.
Inspired by Popcorn Time, a node web server to stream torrents from YIFY. Built using Geddy and the peerflix library.
Logiciel libre de gestion de dossiers d'usager.
Le framework Variation est un outil professionnel et libre d'informatisation des dossiers d'usagers ! Variation est ouvert et utilisable pour les différents types de structures du social et du médico-social. Prises en charge en établissement ou en milieu ordinaire, protection de l'enfance, handicap, réinsertion ou personnes âgées... Un outil libre, simple et efficace qui s'adapte à tous les cas !
Rakoshare is a sharing tool to synchronize a folder on multiple computers with no configuration.
It was inspired by Bittorrent Sync and aims to be an Open Source alternative. Internally it reuses the Bittorrent protocol to build a more dynamic protocol.
3D HTML5 & WebGL Game Engine. JavaScript game engine built on WebGL, WebGPU, WebXR and glTF
PlayCanvas is the world’s easiest to use WebGL Game Engine. It’s free, it’s open source and it’s backed by amazing developer tools.
MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a web interface. Run mailcatcher, set your favourite app to deliver to smtp://127.0.0.1:1025 instead of your default SMTP server, then check out http://127.0.0.1:1080 to see the mail that's arrived so far.
TagSpaces is an open source personal data manager. It helps you organize files with tags on every platform.