Open-Source Websites & Tools

A free browser mind mapper with collaborative editing and an open-source self-hosting option.

A free Mac clipboard application for storing and cycling through copied text.

An open-source Linux clipboard manager with a daemon, graphical controls and GNOME integration.

The KDE Plasma clipboard tool stores recent entries and provides configurable clipboard history.

An open-source QR generation library with browser examples and implementations in several languages.

Ponytail provides guidance for AI agents to reduce unnecessary coding work.

Built with Rust and Vue, Urocissa is a self-hosted gallery for large collections of photos and videos.

LanguageTool checks grammar and style across more than 25 languages, according to its project description.

Quarkdown converts Markdown into papers, presentations, websites, books, and knowledge bases.

This script uses provided cookies to archive forum pages as Markdown files and upload backups to a remote repository.

RagTune helps inspect, debug, benchmark, and tune retrieval for retrieval augmented generation systems.

Timer.Coffee offers coffee recipes, brewing guides and timers across more than 30 brew methods, with a brew diary.

numpy-ml collects machine learning algorithms in NumPy, presented as an intentionally readable Python package.

Hoppscotch is an open-source API client with web, desktop and command-line options. Its personal workspace supports request collections, environments and tests. Hosted team collaboration has separate paid plans.

A browser code editor with HTML, CSS, JavaScript and output panels for sharing small examples.

A free five-field cron expression editor with readable explanations and examples; its interface source uses MIT licensing.

niri arranges windows in columns on a scrollable strip, with a separate strip for each monitor.

Ghostty offers a terminal emulator with a native interface and GPU acceleration, according to its repository description.

ScriptCat provides a browser extension and userscript manager for customizing web pages, removing ads, and automating tasks.

The Android build of mpv is a video player based on the mpv media playback engine.

Bedrock Launcher provides an unofficial launcher for Minecraft Bedrock Edition with installation options similar to Minecraft Launcher.

Train and run open models locally with Unsloth, an open-source desktop interface for model workflows.

The repository describes ByeByeDPI as an Android app that runs ByeDPI locally and redirects device traffic through it.

Free Python and Qt graphical Git client with staged and unstaged changes, diff review and a companion history browser.