1
I Use This!
Very High Activity
Analyzed about 2 hours ago. based on code collected about 10 hours ago.

Project Summary

The purpose of Lichess is to provide a minimalist Chess game.
It requires no registration. You don't need to create an account.
It requires no Flash and can be run from any modern web browser.

Lichess provides following features:

* Multiplayer
* Single player with Artificial Intelligence
* Castling
* En passant
* Promotion
* Check, Chekmate & Stalemate detection
* Move hints and validation

Lichess is built using only Open Source software, including:

* PHP 5.3.2 with Symfony 2 & PHPUnit
* JavaScript with jQuery & UI
* HTML5 & CSS
* Ubuntu 10.04, nginx & Vim
* Crafty Chess engine

Tags

board_games chess game gameserver multiplatform multiplayer opensource web

Badges

MIT License
Permitted

Commercial Use

Modify

Distribute

Sub-License

Private Use

Forbidden

Hold Liable

Required

Include Copyright

Include License

These details are provided for information only. No information here is legal advice and should not be used as such.

Project Security

Vulnerabilities per Version ( last 10 releases )

There are no reported vulnerabilities

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

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About Project Security

Languages

XML
48%
Scala
34%
TypeScript
17%
7 Other
1%

30 Day Summary

Dec 4 2025 — Jan 3 2026

12 Month Summary

Jan 3 2025 — Jan 3 2026
  • 8508 Commits
    Up + 337 (4%) from previous 12 months
  • 99 Contributors
    Down -6 (5%) from previous 12 months