The free and open source chess server
76
Public repositories
29,757
Total stars
4,085
Followers
Lichess, known as lichess-org on GitHub, is a prominent open source chess server with a diverse public repository presence. Its projects are primarily developed in TypeScript, Rust, Scala, Python, Dart, and C++. Notable repositories include lila, the core chess server, and various mobile applications and libraries that enhance the chess playing experience.
Top languages
Public repositories
lila
♞ lichess.org: the forever free, adless and open source chess server ♞
mobile
Lichess mobile app
lichobile
lichess.org former mobile application / new one -> github.com/lichess-org/mobile
chessground
Mobile/Web chess UI for lichess.org
fishnet
Distributed Stockfish analysis for lichess.org
scalachess
Chess API written in scala. Immutable and free of side effects.
api
Lichess API documentation and examples
chess-openings
An aggregated data set of chess opening names
stockfish.wasm
WebAssembly port of the strong chess engine Stockfish
stockfish.js
The strong open source chess engine Stockfish compiled to JavaScript and WebAssembly using Emscripten
lila-ws
Lichess' websocket server
berserk
Python client for the lichess API
lila-openingexplorer
Opening explorer for lichess.org that can handle all the variants and trillions of unique positions
pgn-viewer
PGN viewer widget
lila-docker
Lichess local development using Docker Compose.
compression
Chess clock and move compression algorithms for lichess.org
lila-gif
Webservice to render Gifs of chess positions and games, and stream them frame by frame
database
Public exports of all rated games, puzzles, and computer evaluations.
lila-tablebase
Tablebase server
external-engine
Using engines running outside of the browser on https://lichess.org/analysis
flutter-chessground
Chessboard package for flutter
api-demo
Client-side app using various Lichess APIs for demonstration purpose
kaladin
Machine learning tool aimed at automating cheat detection using insights data.
chessground-examples
Usage examples for chessground
lila-search
Keep elasticsearch threads out of your web facing app, kids
lila-gitpod
Lichess development environment
dartchess
Dart chess library for native platforms
lila-fishnet
Proxy between lila and fishnet move clients
lila-http
Handle some https://lichess.org/tournament load
papers
Papers that use Lichess data, study Lichess, or cite Lichess
stockfish-web
A home for stockfish wasms - because we care
zulip-remind
Zulip bot that posts messages in a stream at a fixed date.
lila-db-seed
Sample database data for lila development
broadcaster
Broadcast your chess games on Lichess!
api-ui
some web UIs on top of the Lichess API
leroyjenkins
Follow ban logs to manage ip sets in nftables
scalalib
Misc scala utilities shared by the lichess.org scala projects.
pgn-mule
Merge, filter, tweak and expose PGN sources
lila-push
Web push microservice for lichess.org
lila-engine
Broker for communication between external engine providers and clients
lila-ip2proxy
Webservice to query an IP2Proxy BIN database
files
Public downloads
swiss-maker
Script that creates regular swiss tournaments for a team.
dart-multistockfish
Multiple flavors of Stockfish Chess Engine
playframework-lila
Play Framework
dart-stockfish
The Stockfish Chess Engine for dart/Flutter.
lila-maven
distributing lichess jars
flutter-sound-effect
Flutter plugin to play short sounds with low latency
zulip
Zulip server and web app—powerful open source team chat - slightly hacked by and for lichess.org
lila-deepq
deepquluru
lifat
large assets used by lila in production but optional for dev builds
zulip-lichess
Multi-purpose Zulip bot for the Lichess workspace
lila-pwned
Webservice to query https://haveibeenpwned.com/ database dumps
stockfish-nnue.wasm
WebAssembly port of the strong chess engine Stockfish with NNUE support
discord-open-source
List of open source communities living on Discord
op1
Probe Marc Bourzutschky's partial 8-piece tablebase, op1
.github
No description provided for this repository.
lichess-org.github.io
No description provided for this repository.
fishnet-builder
Docker image for an environment that can produce fully static Stockfish builds
TypeMap
type-level map in Scala3, using macros
picfit
An image resizing server written in Go
ab-stub
No description provided for this repository.
squares
A flexible chessboard widget for Flutter
flutter-soundpool
Soundpool plugin for Flutter
hermes
CRUD service for email templates, with an edit UI
inbound-email
No description provided for this repository.
team
No description provided for this repository.
dart-lc0
lc0
vosk-browser
A speech recognition library running in the browser thanks to a WebAssembly build of Vosk
zerofish
No description provided for this repository.
docker-nginx
Our nginx docker build
nftnl-rs
Rust bindings and abstraction for libnftnl, low-level userspace access to the in-kernel nf_tables subsystem
fishnet-assets
NNUE files built into https://github.com/lichess-org/fishnet
namecheck
No description provided for this repository.
play-autoconfig
ConfigLoader generator for Play Framework 2.6+
mongotopy
No description provided for this repository.
Frequently asked questions
What does lichess-org build on GitHub?
Lichess-org develops a range of projects related to chess, including the main server application lila and mobile apps for iOS and Android. They also provide libraries and tools that support chess gameplay and analysis.
Which programming languages does lichess-org use?
The primary programming languages used by lichess-org include TypeScript, Rust, Scala, Python, Dart, and C++. This variety allows them to create robust applications and services that cater to different aspects of chess.
Are lichess-org's repositories public?
Yes, all of lichess-org's repositories are public on GitHub. This transparency allows developers and enthusiasts to contribute to the projects and engage with the open source chess community.
Is this exposure intended?
Monitor Lichess with RepoGuard and get alerted the moment a new public repository appears.
Monitor this account