Open-Source Websites & Tools

Set network rules by application or globally with Fort Firewall for Windows.

Automate daily tasks in Limbus Company on PC with this one-click helper project.

Add components and integrations for Astro projects with this collection of ecosystem packages.

The C++ Core Guidelines are a set of guidelines for writing C++ programs, edited by Bjarne Stroustrup and Herb Sutter.

Ciyue is a simple MDict dictionary app for Android supporting MDX/MDD files and multiple-dictionary search.

Aria Maestosa is an open-source (GPL) MIDI sequencer/editor for composing, editing and playing MIDI files on Mac OS X, Windows and Linux/Unix.

Pitivi edits video on Linux, with its project page identifying it as free and open source.

Apply an open-source VHS and NTSC video effect in a standalone app or plugins for After Effects, Premiere and OpenFX.

Build a responsive Java blog with Spring Boot and Bootstrap using this open-source blogging project.

Powered by Jisho.org, JS-Dict provides a Japanese-English dictionary in app form for language lookups.

The Deskhop project describes a device for switching quickly between desktop computers.

MovieNight provides a single-instance server for video streaming with integrated chat.

Paperclip is an open-source control plane for teams running several AI agents: one org chart, owned tasks, budgets and review stages, across any runtime.

Opengist stores snippets in a Git repository for reading or editing with standard Git commands.

FATE is an open source federated learning framework for enterprises and institutions to collaborate on data while protecting data security and privacy.

HTTP Downloader is a free, open-source Windows download manager for HTTP(S), FTP(S), and SFTP.

Trilium Notes supports building a personal knowledge base, as described by the project page.

Lyrion Music Server controls and streams music to compatible physical and virtual audio players.

Winetricks is a script that works around problems in Wine. It has a menu of supported applications with automatic workarounds, and it can install missing DLLs and tweak Wine settings.

Foqos blocks distracting iPhone apps using NFC tags, QR codes, timers, and scheduled breaks.

SWE-bench evaluates whether language models can resolve real GitHub issues.

Troubleshoot network problems with NETworkManager, an open-source application with built-in diagnostic tools.

Learn TypeScript through interactive coding exercises and connect with a community of developers on TypeHero.

Compatibility tool for Steam Play based on Wine and additional components