Consolidated view of all your chess games from chess.com, lichess, grandmaster games or custom pgn.

A tool to study chess openings.

A program that will produce a graphical sunburst chart of chess openings from the PGN that is provided to it

A curated list of awesome chess resources, tools, engines, and content.

Open-source, browser-local chess opening trainer — drill your repertoire with spaced repetition. No account, no server.

A java chess library for generating legal chess moves, determining check / mate / draw, determining the chess opening. Supports SAN, FAN, LAN, UCI and PGN.

A comprehensive, FEN‑keyed chess opening database with 12k+ named variations and transitions.

UCI chess engine derived from Stockfish with added support for for various chess book formats

Website to train chess openings with spaced repetition

Chess trainer on PGN opening trees using tkinter GUI. Shows moves with arrows. Can read but also edit and save PGN. A small automatic PGN creator is also available.

Statistical analysis on how opening variations transpose into each other in pro games on Lichess

Sorts games; add eco, opening and variations names; and generate round-robin and swiss tables.

Desktop app that help you learn chess openings and openings variations

Search, manipulate and get informations on chess openings

Library with a fully-featured interface to facilitate chess opening training with spaced repetition

Open-source Chess Opening Intelligence Platform. Analyze openings, discover your playstyle, build repertoires, explore opening analytics, and understand the ideas behind every opening.

A chess .pgn parser, .pgn extractor, adding a chess opening book with data visualization and web scraper. Separating projects from a private repo of mine.

Read chess opening books in polyglot .bin format and lookup ECO data

Fast, visual chess opening research with master games, transitions, and position analysis.

Simple flashcards app for studying chess positions