Your chess, in plain files — a self-hosted chess workbench: engine analysis, studies, notes, games, and book-fed puzzles
Native macOS chess database — a lightweight ChessBase alternative. Browse, annotate and analyze PGN collections with a bundled Stockfish. Swift + Rust.
The Lichess analysis tree — turbocharged, optimized, and packaged as a standalone npm library with full PGN import/export.
Caissa Codex — a free reference of the 3,690 named chess opening lines, with Lichess statistics (chesscodex.org)
You already know 1.e4. This tells you who to blame for it.
Opening explorer, book manager, and opening-book generator for 4-player chess engines. Build, analyze, balance, merge, and generate opening books for 4PC engine development, testing, and self-play.
Offline-first chess analysis desktop app for Windows: native UCI engines, an offline opening explorer, and move sounds.
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