No-account chess puzzle trainer with PGN variation support, server-side move validation, and browser Stockfish analysis.

PGN (Portable Game Notation) parser. Supports comments, variations, NAGs, and annotations.

PGN viewer widget

If chess.com API had a proper endpoint this wouldn't need to exist

A JavaScript/TypeScript library implementing the chess game rules and providing tools to read/write the standard chess file formats.

Ultra-compact PGN compression into Base64URL strings using bit-level encoding and optimized move ordering

A tool to download PGN files from tournaments hosted on view.livechesscloud.

Desktop chess game importer & explorer (Electron + Angular + SQLite).

Chess Analysis is a free tool that allows you to get reports from your own matches. Import your PGN and check it now.

A chess PGN to Tex conversion tool

Canvas chessboard library for TypeScript and React with PGN tooling, customizable themes, and smooth Canvas rendering for modern chess apps.

A JavaScript library for batch analyzing chess games

Chess scoresheet OCR application using Google Cloud Vision API - Convert handwritten scoresheets to PGN format (In Development)

A chess game review application made using nextjs 15 and stockfish

Chess game NPM Library (Angular 13)

Demo application for leveraging PGN within Particle's Smart Wallet-as-a-Service

A basic PGN writer with autocomplete

VS Code extension for chess game data formats, e.g. FEN and PGN files

Merge multiple games in PGN notation into a single game with variations

Chess Engine Battles & Analysis using UCI Engines