Repositories list

• lila

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

  gametypescriptchess+ 7

  gametypescriptchessscalafunctional-programmingplay-frameworkfree-softwaretype-safenon-profitlichess

  Scala

  •

  GNU Affero General Public License v3.0

  •2.7k2.7k forks•18k18k stars•1.2k1.2k issues•1919 pull requests•Updated May 6, 2026May 6, 2026

• mobile

  Public

  lichess-org/mobile’s past year of commit activity
  Lichess mobile app

  androiddartios+ 4

  androiddartiosmobilechessflutterlichess

  Dart

  •

  GNU General Public License v3.0

  •406406 forks•2.3k2.3k stars•398398 issues•2020 pull requests•Updated May 6, 2026May 6, 2026

• lila-fishnet

  Public
  Proxy between lila and fishnet move clients

  catschessfunctional-programming+ 4

  catschessfunctional-programmingtypelevellichessfishnetcats-effect

  Scala

  •

  GNU Affero General Public License v3.0

  •3030 forks•4949 stars•00 issues•00 pull requests•Updated May 6, 2026May 6, 2026

• lila-search

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

  elasticsearchchessscala+ 7

  elasticsearchchessscalafunctional-programmingtypelevellichessscala3cats-effectsmithysmithy4s

  Scala

  •

  GNU Affero General Public License v3.0

  •2828 forks•5252 stars•33 issues•11 pull request•Updated May 6, 2026May 6, 2026

• lila-ws

  Public

  lichess-org/lila-ws’s past year of commit activity
  Lichess' websocket server

  redisstreamingreactive+ 5

  redisstreamingreactivescalaakkawebsocketpubsublichess

  Scala

  •

  GNU Affero General Public License v3.0

  •103103 forks•176176 stars•22 issues•11 pull request•Updated May 6, 2026May 6, 2026

• berserk

  Public

  lichess-org/berserk’s past year of commit activity
  Python client for the lichess API

  Python

  •

  GNU General Public License v3.0

  •7676 forks•158158 stars•99 issues•88 pull requests•Updated May 6, 2026May 6, 2026

• lichess-org.github.io

  Public
  22 forks•22 stars•00 issues•00 pull requests•Updated May 5, 2026May 5, 2026

• lila-db-seed

  Public
  Sample database data for lila development

  Python

  •

  MIT License

  •2121 forks•2323 stars•22 issues•00 pull requests•Updated May 5, 2026May 5, 2026

• fishnet

  Public
  Distributed Stockfish analysis for lichess.org

  chessdistributed-computinglichess+ 2

  chessdistributed-computinglichessvolunteer-computingstockfish

  Rust

  •

  GNU General Public License v3.0

  •110110 forks•895895 stars•77 issues•11 pull request•Updated May 4, 2026May 4, 2026

• scalachess

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

  chessfunctional-programmingbitboard+ 3

  chessfunctional-programmingbitboardlichessbitboard-datastructurescala-3

  Scala

  •

  MIT License

  •228228 forks•769769 stars•44 issues•55 pull requests•Updated May 4, 2026May 4, 2026

• lila-gif

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

  chessgiflichess+ 1

  chessgiflichesshttp-api

  Rust

  •

  GNU Affero General Public License v3.0

  •2727 forks•115115 stars•33 issues•22 pull requests•Updated May 3, 2026May 3, 2026

• scalalib

  Public
  Misc scala utilities shared by the lichess.org scala projects.

  librarychessscala

  librarychessscala

  Scala

  •

  MIT License

  •2020 forks•1919 stars•00 issues•44 pull requests•Updated May 3, 2026May 3, 2026

• papers

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

  chessbibliographypublications+ 1

  chessbibliographypublicationslichess

  TeX

  •

  Creative Commons Zero v1.0 Universal

  •44 forks•3636 stars•44 issues•00 pull requests•Updated May 3, 2026May 3, 2026

• docker-nginx

  Public
  Our nginx docker build

  00 forks•00 stars•00 issues•11 pull request•Updated May 3, 2026May 3, 2026

• inbound-email

  Public
  TypeScript

  •

  GNU Affero General Public License v3.0

  •00 forks•00 stars•00 issues•00 pull requests•Updated May 2, 2026May 2, 2026

• lila-ip2proxy

  Public
  Webservice to query an IP2Proxy BIN database

  rustgeolocationlichess+ 1

  rustgeolocationlichessip2location

  Rust

  •

  GNU Affero General Public License v3.0

  •11 fork•1111 stars•00 issues•11 pull request•Updated May 1, 2026May 1, 2026

• lila-engine

  Public
  Broker for communication between external engine providers and clients

  Rust

  •

  GNU Affero General Public License v3.0

  •22 forks•1111 stars•00 issues•11 pull request•Updated May 1, 2026May 1, 2026

• lila-http

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

  lichess

  lichess

  Rust

  •

  GNU Affero General Public License v3.0

  •1313 forks•4040 stars•00 issues•11 pull request•Updated May 1, 2026May 1, 2026

• zulip

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

  Python

  •

  Apache License 2.0

  •9.8k9.8k forks•66 stars•00 issues•00 pull requests•Updated May 1, 2026May 1, 2026

• hermes

  Public
  CRUD service for email templates, with an edit UI

  TypeScript

  •

  GNU Affero General Public License v3.0

  •00 forks•00 stars•00 issues•00 pull requests•Updated Apr 30, 2026Apr 30, 2026

• api

  Public
  Lichess API documentation and examples

  lichess

  lichess

  TypeScript

  •

  GNU Affero General Public License v3.0

  •169169 forks•557557 stars•2727 issues•00 pull requests•Updated Apr 28, 2026Apr 28, 2026

• ab-stub

  Public
  JavaScript

  •11 fork•11 star•00 issues•00 pull requests•Updated Apr 28, 2026Apr 28, 2026

• lila-docker

  Public
  Lichess local development using Docker Compose.

  dockerdocker-composelichess

  dockerdocker-composelichess

  Rust

  •

  GNU Affero General Public License v3.0

  •9797 forks•120120 stars•77 issues•00 pull requests•Updated Apr 22, 2026Apr 22, 2026

• team

  Public
  Scala

  •00 forks•00 stars•00 issues•00 pull requests•Updated Apr 18, 2026Apr 18, 2026

• fishnet-builder

  Public
  Docker image for an environment that can produce fully static Stockfish builds

  C

  •00 forks•22 stars•00 issues•00 pull requests•Updated Apr 16, 2026Apr 16, 2026

• chess-openings

  Public
  An aggregated data set of chess opening names

  chessdatasetlichess

  chessdatasetlichess

  Python

  •

  Creative Commons Zero v1.0 Universal

  •124124 forks•514514 stars•1010 issues•1111 pull requests•Updated Apr 16, 2026Apr 16, 2026

• flutter-chessground

  Public
  Chessboard package for flutter

  dartchessboardflutter+ 1

  dartchessboardflutterlichess

  Dart

  •

  GNU General Public License v3.0

  •5555 forks•7878 stars•44 issues•22 pull requests•Updated Apr 14, 2026Apr 14, 2026

• leroyjenkins

  Public
  Follow ban logs to manage ip sets in nftables

  ipsetnftables

  ipsetnftables

  Rust

  •

  GNU General Public License v3.0

  •55 forks•1919 stars•11 issue•00 pull requests•Updated Apr 13, 2026Apr 13, 2026

• stockfish-web

  Public
  A home for stockfish wasms - because we care

  chesswebassemblyemscripten+ 2

  chesswebassemblyemscriptenlichessstockfish

  Python

  •

  GNU General Public License v3.0

  •66 forks•2828 stars•00 issues•00 pull requests•Updated Apr 9, 2026Apr 9, 2026

• api-demo

  Public
  Client-side app using various Lichess APIs for demonstration purpose

  lichess-apilichess

  lichess-apilichess

  TypeScript

  •

  GNU Affero General Public License v3.0

  •2323 forks•7474 stars•11 issue•00 pull requests•Updated Apr 6, 2026Apr 6, 2026