Gaphor is the simple modeling tool

🧩 The Browser Extension Framework

An open source, lightweight note-taking service. Easily capture and share your great thoughts.

Text editor for Markdown

Build smaller, faster, and more secure desktop applications with a web frontend.

Free UML Tool for Fast UML Diagrams

mxGraph is a fully client side JavaScript diagramming library

Generate diagrams from textual description

PDFsam, a desktop application to split, merge, mix, rotate PDF files and extract pages

Home of the Joomla! Content Management System

PlantUML Online Server

The official Waterfox 💧 source code repository

A free open source IT asset/license management system

TeachYourselfCS 的中文翻译 | A Chinese translation of TeachYourselfCS

Termux - a terminal emulator application for Android OS extendible by variety of packages.

A simple easy-to-integrate Camera Fragment for Android

DiffPlex is Netstandard 1.0+ C# library to generate textual diffs.

😻 Convert any video file to an optimized animated GIF.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

A complete computer science study plan to become a software engineer.

Draws simple SVG sequence diagrams from textual representation of the diagram

📚 Freely available programming books

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

Open Source Continuous File Synchronization