Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- BSD
- Self-Hosted








Microsoft MakeCode brings computer science to life for all students with fun projects, immediate results, and both block and text editors for learners at different levels. It's a free, open source platform for creating engaging computer science learning experiences that...




PixiJS is an advanced, mature HTML5 creation engine with a fast and flexible 2D WebGL renderer.

Blazing Fast Temp Mail Service: Why FreeCustom.Email Delivers Unbeatable Loading Speed on All Devices.




Moddio is a Multiplayer-First Game Engine. It has a built-in server-authoritative netcode, including snapshot interpolation and client-side reconciliation. It can support 50+ concurrent players or 300+ moving entities hosted on a $5/month VM.




WHMCS is an all-in-one billing and automation platform that automates all aspects of a web hosting business from signup and payment processing, service provisioning, domain registration and customer support.




Conduit is a simple, fast and reliable chat server powered by Matrix. Conduit is an alternative to Synapse and tries to be lightweight and easy to install, but it is still in development.

TIO is a family of online interpreters for an evergrowing list of practical and recreational programming languages.
Picmaker is an online design solution that helps create stunning YouTube thumbnails, channel art, and IGTV covers. It is a simpler and faster alternative to expensive and complicated design tools that are available today.




An open source sharing solution providing private and public secure tunneling using OpenZiti for zero trust networking, available as SaaS or self-hosted.

ProProfs Project is a fantastic project management tool to plan tasks, streamline communication, and meet deadlines faster.




Apache Spark is a multi-language engine for executing data engineering, data science, and machine learning on single-node machines or clusters.

Apache NiFi is an easy to use, powerful, and reliable system to process and distribute data.

rqbit is a bittorrent client written entirely in Rust. Has HTTP API and Web UI, and can be used as a library.

Build fully functional accessible web applications faster than ever – Mantine includes more than 100 customizable components and 50 hooks to cover you in any situation.


Coraza is an open source, enterprise-grade, high performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set v4.



AnonymousOverflow allows you to view StackOverflow threads without the cluttered interface and exposing your IP address, browsing habits and other browser fingerprint data to StackOverflow.


VuePress is a static site generator that uses markdown. It allows users to create content like blogs and documentation. Originally designed for Vue.js documentation, it now serves a wider user base. It emphasizes simplicity, with a minimal setup and markdown-centered structure.
grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.



A simplified Jira clone built with React/Babel (Client), and Node/TypeScript (API). Auto formatted with Prettier, tested with Cypress.


Advanced Custom Fields helps you create data in WordPress with the flexibility of a professional Content Management System. WordPress is designed for blogging, ACF extends it with powerful custom content and a UI to make it dead easy.

