Open-Source Websites & Tools

Improve CSS code with this collection of tips covering practices for writing stylesheets.

Book Dash provides an open-source Android app for downloading free children’s storybooks published by the nonprofit in multiple languages.

MORT translates game text in real time using OCR, with English and Korean language options.

Aeon provides an AI agent framework that runs unattended on GitHub Actions and can drive Claude Code, Grok, and Codex.

ClojisR connects Clojure with R, providing a bridge for statistical work between the two languages.

Unwanted Twitch hides selected streams, games, categories, channels, and tags on Twitch.

Play shogi online against the computer, friends, or random opponents through lishogi.org.

Pawn Appetit brings chess analysis, repertoire training, engine and database management into one open-source toolkit.

FLAML provides a fast Python library for automated machine learning and tuning.

Maloja lets users host a music scrobble database and build personal listening statistics.

notesGPT records voice notes, transcribes and summarizes them, and extracts tasks.

Free online draughts server to play International draughts and variants in tournaments, with friends or random opponents, with no registration, ads or plugins required.

Type Challenges offers TypeScript type exercises with an online judge.

Helm offers a free polyphonic synthesizer for GNU/Linux, Mac, and Windows, as a standalone program or audio plugin.

Consent-O-Matic handles website cookie consent pop-ups according to user preferences.

This comparison list tracks which Nostr clients support different protocol features and NIPs.

Material Darker adds more than 250 icons and a neutral dark appearance to JDownloader.

Create a VPN between a client and server across untrusted or restricted networks with DSVPN.

AGiXT orchestrates AI agents, instructions, and complex task execution across AI providers.

OpenCodeReview combines deterministic checks and language model agents for code review with line-level comments.

:newspaper: I consume the world via RSS feeds, and this is my attempt to keep it that way.

Userscripts provides an open-source userscript manager for Safari, as described by its project page.

tsfresh automatically extracts relevant features from time series data.

OneCompression is a Python package for compressing large language models.