Repositories list

• mobile

  Public
  Lichess mobile app v2

  chesslichessandroid+ 4dartiosmobileflutter

  Dart

  •

  GNU General Public License v3.0

  •223•1.5k•219•25•Updated Feb 10, 2025Feb 10, 2025

• lila

  Public
  ♞ lichess.org: the forever free, adless and open source chess server ♞

  gametypescriptchess+ 7scalafunctional-programmingplay-frameworkfree-softwaretype-safenon-profitlichess

  Scala

  •

  GNU Affero General Public License v3.0

  •2.3k•16k•1k•27•Updated Feb 10, 2025Feb 10, 2025

• lila-tablebase

  Public
  Tablebase server

  rustlichesshttp-api+ 3syzygytablebasechess

  Rust

  •

  GNU Affero General Public License v3.0

  •15•86•0•1•Updated Feb 9, 2025Feb 9, 2025

• scalachess

  Public
  Chess API written in scala. Immutable and free of side effects.

  chessfunctional-programmingbitboard+ 3lichessbitboard-datastructurescala-3

  Scala

  •

  MIT License

  •211•697•1•3•Updated Feb 9, 2025Feb 9, 2025

• chess-openings

  Public
  An aggregated data set of chess opening names

  chessdatasetlichess

  Python

  •

  Creative Commons Zero v1.0 Universal

  •97•396•4•2•Updated Feb 8, 2025Feb 8, 2025

• broadcaster

  Public
  Broadcast your chess games on Lichess!

  Vue

  •

  GNU Affero General Public License v3.0

  •8•18•5•0•Updated Feb 8, 2025Feb 8, 2025

• lila-maven

  Public
  distributing lichess jars

  Shell

  •9•6•0•0•Updated Feb 6, 2025Feb 6, 2025

• scalalib

  Public
  Some convenience functions for my scala projects

  Scala

  •

  MIT License

  •20•19•0•0•Updated Feb 6, 2025Feb 6, 2025

• lila-docker

  Public
  Lichess local development using Docker Compose.

  dockerdocker-composelichess

  Rust

  •

  GNU Affero General Public License v3.0

  •55•60•4•0•Updated Feb 6, 2025Feb 6, 2025

• lila-ws

  Public
  Lichess' websocket server

  redisstreamingreactive+ 5scalaakkawebsocketpubsublichess

  Scala

  •

  GNU Affero General Public License v3.0

  •90•156•2•1•Updated Feb 5, 2025Feb 5, 2025

• api

  Public
  Lichess API documentation and examples

  lichess

  TypeScript

  •

  GNU Affero General Public License v3.0

  •153•462•21•1•Updated Feb 5, 2025Feb 5, 2025

• database

  Public
  Public exports of all rated games, puzzles, and computer evaluations.

  chesscommon-goods

  Scala

  •

  GNU Affero General Public License v3.0

  •28•85•4•0•Updated Feb 5, 2025Feb 5, 2025

• lila-search

  Public
  Keep elasticsearch threads out of your web facing app, kids

  elasticsearchchessscala+ 7functional-programmingtypelevellichessscala3cats-effectsmithysmithy4s

  Scala

  •

  GNU Affero General Public License v3.0

  •24•48•1•3•Updated Feb 4, 2025Feb 4, 2025

• lila-openingexplorer

  Public
  Opening explorer for lichess.org that can handle all the variants and trillions of unique positions

  chesslichesshttp-api+ 1chess-database

  Rust

  •

  GNU Affero General Public License v3.0

  •35•136•2•5•Updated Feb 1, 2025Feb 1, 2025

• lila-gif

  Public
  Webservice to render Gifs of chess positions and games, and stream them frame by frame

  giflichesshttp-api+ 1chess

  Rust

  •

  GNU Affero General Public License v3.0

  •22•104•5•4•Updated Feb 1, 2025Feb 1, 2025

• lila-push

  Public
  Web push microservice for lichess.org

  lichesshttp-api

  Rust

  •

  GNU Affero General Public License v3.0

  •12•17•0•4•Updated Feb 1, 2025Feb 1, 2025

• lila-ip2proxy

  Public
  Webservice to query an IP2Proxy BIN database

  rustgeolocationlichess+ 1ip2location

  Rust

  •

  GNU Affero General Public License v3.0

  •1•11•0•3•Updated Feb 1, 2025Feb 1, 2025

• lila-engine

  Public
  Broker for communication between external engine providers and clients

  Rust

  •

  GNU Affero General Public License v3.0

  •1•7•0•5•Updated Feb 1, 2025Feb 1, 2025

• lila-http

  Public
  Handle some https://lichess.org/tournament load

  lichess

  Rust

  •

  GNU Affero General Public License v3.0

  •11•36•0•5•Updated Feb 1, 2025Feb 1, 2025

• dart-stockfish

  Public
  The Stockfish Chess Engine for dart/Flutter.

  C++

  •

  GNU General Public License v3.0

  •16•5•0•0•Updated Jan 31, 2025Jan 31, 2025

• lila-db-seed

  Public
  Sample database data for lila development

  Python

  •

  MIT License

  •15•20•0•0•Updated Jan 29, 2025Jan 29, 2025

• papers

  Public
  Papers that use Lichess data, study Lichess, or cite Lichess

  chessbibliographylichess

  TeX

  •

  Creative Commons Zero v1.0 Universal

  •3•26•2•0•Updated Jan 27, 2025Jan 27, 2025

• berserk

  Public
  Python client for the lichess API

  Python

  •

  GNU General Public License v3.0

  •44•97•4•11•Updated Jan 26, 2025Jan 26, 2025

• lila-fishnet

  Public
  Proxy between lila and fishnet move clients

  catschessfunctional-programming+ 4typelevellichessfishnetcats-effect

  Scala

  •

  GNU Affero General Public License v3.0

  •29•41•1•1•Updated Jan 25, 2025Jan 25, 2025

• playframework-lila

  Public
  Play Framework

  Scala

  •

  Apache License 2.0

  •4.1k•7•0•2•Updated Jan 24, 2025Jan 24, 2025

• compression

  Public
  Chess clock and move compression algorithms for lichess.org

  Scala

  •

  GNU Affero General Public License v3.0

  •20•114•1•2•Updated Jan 20, 2025Jan 20, 2025

• zulip

  Public
  Zulip server and web app—powerful open source team chat - slightly hacked by and for lichess.org

  Python

  •

  Apache License 2.0

  •8.2k•5•0•0•Updated Jan 17, 2025Jan 17, 2025

• lila-stockfish-web

  Public
  A home for stockfish wasms - because we care

  Python

  •

  GNU General Public License v3.0

  •1•12•0•0•Updated Jan 13, 2025Jan 13, 2025

• flutter-chessground

  Public
  Chessboard package for flutter

  dartchessboardflutter+ 1lichess

  Dart

  •

  GNU General Public License v3.0

  •35•57•4•0•Updated Jan 12, 2025Jan 12, 2025

• fishnet

  Public
  Distributed Stockfish analysis for lichess.org

  chessdistributed-computinglichess+ 2volunteer-computingstockfish

  Rust

  •

  GNU General Public License v3.0

  •104•762•3•0•Updated Jan 3, 2025Jan 3, 2025