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80 repositories

mobile
Public
Lichess mobile app
android dart ios
android dart ios mobile chess flutter lichess
Dart
•
GNU General Public License v3.0
•474•2.5k•419•39•Updated Aug 21, 2026Aug 21, 2026
dart-multistockfish
Public
Multiple flavors of Stockfish Chess Engine
dart chess engine
dart chess engine dartlang stockfish stockfish-engine
C++
•
GNU General Public License v3.0
•4•10•1•2•Updated Aug 21, 2026Aug 21, 2026
lila
Public
♞ lichess.org: the forever free, adless and open source chess server ♞
game typescript chess
game typescript chess scala functional-programming play-framework free-software type-safe non-profit lichess
Scala
•
GNU Affero General Public License v3.0
•2.8k•19k•1.2k•43•Updated Aug 20, 2026Aug 20, 2026
lila-docker
Public
Lichess local development using Docker Compose.
docker docker-compose lichess
docker docker-compose lichess
Rust
•
GNU Affero General Public License v3.0
•109•126•7•2•Updated Aug 20, 2026Aug 20, 2026
api
Public
Lichess API documentation and examples
lichess
lichess
TypeScript
•
GNU Affero General Public License v3.0
•172•590•30•1•Updated Aug 20, 2026Aug 20, 2026
scalachess
Public
Chess API written in scala. Immutable and free of side effects.
chess functional-programming bitboard
chess functional-programming bitboard lichess bitboard-datastructure scala-3
Scala
•
MIT License
•226•780•4•6•Updated Aug 20, 2026Aug 20, 2026
lila-ws
Public
Lichess' websocket server
redis streaming reactive
redis streaming reactive scala akka websocket pubsub lichess
Scala
•
GNU Affero General Public License v3.0
•106•182•2•4•Updated Aug 19, 2026Aug 19, 2026
pgn-viewer
Public
PGN viewer widget
javascript typescript chess
javascript typescript chess viewer pgn lichess
TypeScript
•
GNU General Public License v3.0
•43•153•3•4•Updated Aug 19, 2026Aug 19, 2026
scalalib
Public
Misc scala utilities shared by the lichess.org scala projects.
library chess scala
library chess scala
Scala
•
MIT License
•20•21•0•1•Updated Aug 17, 2026Aug 17, 2026
lila-db-seed
Public
Sample database data for lila development
Python
•
MIT License
•24•23•2•1•Updated Aug 17, 2026Aug 17, 2026
lila-gitpod
Public archive
lichess
lichess
Shell
•
GNU Affero General Public License v3.0
•31•53•0•0•Updated Aug 11, 2026Aug 11, 2026
papers
Public
Papers that use Lichess data, study Lichess, or cite Lichess
chess bibliography publications
chess bibliography publications lichess
TeX
•
Creative Commons Zero v1.0 Universal
•6•39•4•0•Updated Aug 11, 2026Aug 11, 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
•10k•6•0•0•Updated Aug 11, 2026Aug 11, 2026
lila-search
Public
Keep elasticsearch threads out of your web facing app, kids
elasticsearch chess scala
elasticsearch chess scala functional-programming typelevel lichess scala3 cats-effect smithy smithy4s
Scala
•
GNU Affero General Public License v3.0
•30•53•2•4•Updated Aug 9, 2026Aug 9, 2026
lichess-org.github.io
Public
3•2•0•1•Updated Aug 8, 2026Aug 8, 2026
.github
Public
5•2•0•0•Updated Aug 8, 2026Aug 8, 2026
liplay
Public
A collection of scala web libraries that originated from play framework, and are dedicated to powering lila
Scala
•
Apache License 2.0
•2•3•0•2•Updated Aug 7, 2026Aug 7, 2026
changelog
Public
Changelog generator for lichess-org repos
TypeScript
•0•0•0•0•Updated Aug 6, 2026Aug 6, 2026
database
Public
Public exports of all rated games, puzzles, and computer evaluations.
chess common-goods
chess common-goods
Scala
•
GNU Affero General Public License v3.0
•39•117•4•0•Updated Aug 4, 2026Aug 4, 2026
lila-engine
Public
Broker for communication between external engine providers and clients
Rust
•
GNU Affero General Public License v3.0
•3•10•0•0•Updated Aug 4, 2026Aug 4, 2026
chess-openings
Public
An aggregated data set of chess opening names
chess dataset lichess
chess dataset lichess
Python
•
Creative Commons Zero v1.0 Universal
•130•549•10•20•Updated Aug 4, 2026Aug 4, 2026
lila-openingexplorer
Public
Opening explorer for lichess.org that can handle all the variants and trillions of unique positions
chess lichess http-api
chess lichess http-api chess-database
Rust
•
GNU Affero General Public License v3.0
•45•153•3•6•Updated Aug 3, 2026Aug 3, 2026
stockfish-web
Public
WebAssembly builds for Stockfish, for lichess.org
chess webassembly emscripten
chess webassembly emscripten lichess stockfish
Python
•
GNU General Public License v3.0
•8•45•0•1•Updated Aug 2, 2026Aug 2, 2026
research
Public
GNU Affero General Public License v3.0
•0•0•0•0•Updated Aug 2, 2026Aug 2, 2026
lila-ip2proxy
Public
Webservice to query an IP2Proxy BIN database
rust geolocation lichess
rust geolocation lichess ip2location
Rust
•
GNU Affero General Public License v3.0
•1•10•0•0•Updated Aug 2, 2026Aug 2, 2026
lila-gif
Public
Webservice to render Gifs of chess positions and games, and stream them frame by frame
chess gif lichess
chess gif lichess http-api
Rust
•
GNU Affero General Public License v3.0
•29•116•4•1•Updated Aug 2, 2026Aug 2, 2026
lila-tablebase
Public
Tablebase server
rust chess lichess
rust chess lichess http-api syzygy tablebase
Rust
•
GNU Affero General Public License v3.0
•15•101•0•1•Updated Aug 2, 2026Aug 2, 2026
lila-http
Public
Handle some https://lichess.org/tournament load
lichess
lichess
Rust
•
GNU Affero General Public License v3.0
•12•40•0•0•Updated Aug 1, 2026Aug 1, 2026
dartchess
Public
Dart chess library for native platforms
dart flutter
dart flutter
Dart
•
GNU General Public License v3.0
•29•52•3•3•Updated Aug 1, 2026Aug 1, 2026
lila-fishnet
Public
Proxy between lila and fishnet move clients
cats chess functional-programming
cats chess functional-programming typelevel lichess fishnet cats-effect
Scala
•
GNU Affero General Public License v3.0
•32•48•0•4•Updated Jul 29, 2026Jul 29, 2026

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80 repositories