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    • lila

      Public
      ♞ lichess.org: the forever free, adless and open source chess server ♞
      Scala
      2.5k17k1.1k23Updated Dec 7, 2025Dec 7, 2025
    • lila-search

      Public
      Keep elasticsearch threads out of your web facing app, kids
      Scala
      265022Updated Dec 7, 2025Dec 7, 2025
    • fishnet

      Public
      Distributed Stockfish analysis for lichess.org
      Rust
      10785251Updated Dec 7, 2025Dec 7, 2025
    • chess-openings

      Public
      An aggregated data set of chess opening names
      Python
      11346054Updated Dec 7, 2025Dec 7, 2025
    • papers

      Public
      Papers that use Lichess data, study Lichess, or cite Lichess
      TeX
      43130Updated Dec 7, 2025Dec 7, 2025
    • lila-docker

      Public
      Lichess local development using Docker Compose.
      Rust
      8710360Updated Dec 7, 2025Dec 7, 2025
    • mobile

      Public
      New Lichess mobile app in Flutter
      Dart
      3252k35822Updated Dec 7, 2025Dec 7, 2025
    • lila-ws

      Public
      Lichess' websocket server
      Scala
      9716921Updated Dec 6, 2025Dec 6, 2025
    • lila-fishnet

      Public
      Proxy between lila and fishnet move clients
      Scala
      284700Updated Dec 6, 2025Dec 6, 2025
    • broadcaster

      Public
      Broadcast your chess games on Lichess!
      Vue
      102190Updated Dec 5, 2025Dec 5, 2025
    • scalalib

      Public
      Misc scala utilities shared by the lichess.org scala projects.
      Scala
      202010Updated Dec 4, 2025Dec 4, 2025
    • scalachess

      Public
      Chess API written in scala. Immutable and free of side effects.
      Scala
      22374244Updated Dec 4, 2025Dec 4, 2025
    • berserk

      Public
      Python client for the lichess API
      Python
      6514381Updated Dec 3, 2025Dec 3, 2025
    • lila-db-seed

      Public
      Sample database data for lila development
      Python
      192310Updated Dec 2, 2025Dec 2, 2025
    • lila-openingexplorer

      Public
      Opening explorer for lichess.org that can handle all the variants and trillions of unique positions
      Rust
      3914826Updated Dec 2, 2025Dec 2, 2025
    • leroyjenkins

      Public
      Follow ban logs to manage ipsets
      Rust
      41911Updated Dec 1, 2025Dec 1, 2025
    • nftnl-rs

      Public
      Rust bindings and abstraction for libnftnl, low-level userspace access to the in-kernel nf_tables subsystem
      Rust
      32000Updated Dec 1, 2025Dec 1, 2025
    • api

      Public
      Lichess API documentation and examples
      TypeScript
      160518200Updated Nov 29, 2025Nov 29, 2025
    • pgn-viewer

      Public
      PGN viewer widget
      TypeScript
      3113744Updated Nov 29, 2025Nov 29, 2025
    • flutter-chessground

      Public
      Chessboard package for flutter
      Dart
      487122Updated Nov 23, 2025Nov 23, 2025
    • chessground

      Public
      Mobile/Web chess UI for lichess.org
      TypeScript
      3011.2k273Updated Nov 21, 2025Nov 21, 2025
    • database

      Public
      Public exports of all rated games, puzzles, and computer evaluations.
      Scala
      3310250Updated Nov 20, 2025Nov 20, 2025
    • Chess clock and move compression algorithms for lichess.org
      Scala
      2011812Updated Nov 19, 2025Nov 19, 2025
    • flutter-sound-effect

      Public
      Flutter plugin to play short sounds with low latency
      Dart
      3630Updated Nov 19, 2025Nov 19, 2025
    • stockfish-web

      Public
      A home for stockfish wasms - because we care
      Python
      42000Updated Nov 15, 2025Nov 15, 2025
    • op1

      Public
      Probe Marc Bourzutschky's partial 8-piece tablebase, op1
      C
      0100Updated Nov 13, 2025Nov 13, 2025
    • lila-tablebase

      Public
      Tablebase server
      Rust
      159401Updated Nov 8, 2025Nov 8, 2025
    • zulip

      Public
      Zulip server and web app—powerful open source team chat - slightly hacked by and for lichess.org
      Python
      9k600Updated Nov 3, 2025Nov 3, 2025
    • lila-gif

      Public
      Webservice to render Gifs of chess positions and games, and stream them frame by frame
      Rust
      2411168Updated Nov 1, 2025Nov 1, 2025
    • fishnet-builder

      Public
      Docker image for an environment that can produce fully static Stockfish builds
      C
      0200Updated Oct 24, 2025Oct 24, 2025