Chess.com Analysis at Lichess

Tracking since Apr 1, 2026.

Changelog

• Apr 18, 2026
  description

  This extension has the following features:
  
  * Allows you to view lichess analysis for any finished chess.com game.
  * Works from the Game Archive as well as from finished live games
  * Also supports chessgames.com, chess-db.com and chesstempo.com
  
  I am not affiliated in any way with lichess or chess.com (but I'm a fan of both).
  
  I'm not playing chess as much right now, so if it's broken, please let me know at [email protected].
  
  Many thanks to all contributors!
  
  Reddit discussion is here: https://redd.it/47cdew
  
  Source code is on Github here: https://goo.gl/rOZqsm
  
  Recent changes:
  2025: December 9: Various fixes and improvements.
  2025: December 9: Improved share dialog opening for nested controls. (Thanks guidezpl!)
  2025: August 27: Fixed for changes to chess.com
  2025 March 20: Fixed for change to live games URL (thanks stupidJoon!)
  2024 December 4: Fixed for recent chess.com changes. Now works for World Championship games and other events.
  2023 May 24: Fixed for chess.com games against computers.
  2022 April 17: Fixed for change to chess.com download button.
  2022 March 28: Fixed some problems with the upgrade to manifest v3. Fixed chessgames.com. Fixed for change to chess.com download button.
  2022 March 27: Upgraded to Chrome manifest v3 (thanks Russell!)
  2022 March 5: Prevented chess.com analysis from being sent to lichess (thanks Russell!)
  2021 December 20: Fixed for chess.com games via download button (thanks Pierre-Louis!).
  2021 July 29: Fixed for chess.com daily games and events.
  2021 February 6: Fixed when launched from the chess.com analysis pages. (thanks Johannes!)
  2020 November 18: Fixes for recent chess.com changes. Now works from chess.com analysis pages.
  2020 September 19: Fixes for changes to urls on chess.com and chesstempo.com.
  2020 September 3: Updated for new url format on chess.com (thanks mhssmnn!).
  2019 December 20: Fixed after recent changes to chess.com.
  2019 October 8: Fixed after recent changes to chess.com. Now works with games against the computer.
  2019 April 16: Support for games from chessgames.com, chess-db.com and chesstempo.com. Improved manifest to limit permissions as much as possible. Icon now becomes enabled only when there is a valid game to analyse. Improved colour of icon so that it is clear when it is available.
  2019 April 4: Fixed after live game. Avoided 'the message port closed...' error.
  2019 April 3: Fixed after recent changes to Chess.com (thanks 0ddFell0w!) . Support for 'daily' games.
  2018 December 8: Fixed after recent changes to Lichess import page.
  2018 October 20: Fixed problem which was preventing working after live games.
  2017 January 3: Fix to link after finished game. Also works from chess.com live analysis.
  2016 November 30: Print-friendly PDF is now a separate Chrome extension (Lichess Print-friendly PDF).
  2016 November 25: Print-friendly PDF now uses AWS lambda.
  2016 November 14: Added 'Print-friendly PDF export' which has recently been removed from lichess.
  2016 July 5: Fixed for recent chess.com changes.
  2016 June 29: Fixed game result in lichess PDF export
  2016 June 16: Fixed css name clash.
  2016 June 16: Fixes for recent chess.com changes. Now works from any live game in v3 (not just your own)!
  2016 June 13: Uses https in lichess.org urls.
  2016 Mar 30: Improved reliability of computer analysis toggle before uploading to lichess.
  2016 Mar 27: Updated to support recent changes to chess.com.
  
  Thanks to Allan Rempel who created a similar plugin for chess.com v2. 
  
  Icon CC-BY-SA 3.0, CBurnett (https://en.wikipedia.org/wiki/User:Cburnett) 
  with adjustments by AntonSusi (https://commons.wikimedia.org/wiki/User:Antonsusi).

  This extension has the following features:
  
  * Allows you to view lichess analysis for any finished chess.com game.
  * Works from the Game Archive as well as from finished live games
  * Also supports chessgames.com, chess-db.com and chesstempo.com
  
  I am not affiliated in any way with lichess or chess.com (but I'm a fan of both).
  
  I'm not playing chess as much right now, so if it's broken, please let me know at [email protected].
  
  Many thanks to all contributors!
  
  Reddit discussion is here: https://redd.it/47cdew
  
  Source code is on Github here: https://goo.gl/rOZqsm
  
  Recent changes:
  2026 March 31: Fixed share button for non-English browser locales. (Thanks blue_int!)
  2025 December 9: Various additional fixes and improvements.
  2025 December 9: Improved share dialog opening for nested controls. (Thanks guidezpl!)
  2025 August 27: Fixed for changes to chess.com
  2025 March 20: Fixed for change to live games URL (thanks stupidJoon!)
  2024 December 4: Fixed for recent chess.com changes. Now works for World Championship games and other events.
  2023 May 24: Fixed for chess.com games against computers.
  2022 April 17: Fixed for change to chess.com download button.
  2022 March 28: Fixed some problems with the upgrade to manifest v3. Fixed chessgames.com. Fixed for change to chess.com download button.
  2022 March 27: Upgraded to Chrome manifest v3 (thanks Russell!)
  2022 March 5: Prevented chess.com analysis from being sent to lichess (thanks Russell!)
  2021 December 20: Fixed for chess.com games via download button (thanks Pierre-Louis!).
  2021 July 29: Fixed for chess.com daily games and events.
  2021 February 6: Fixed when launched from the chess.com analysis pages. (thanks Johannes!)
  2020 November 18: Fixes for recent chess.com changes. Now works from chess.com analysis pages.
  2020 September 19: Fixes for changes to urls on chess.com and chesstempo.com.
  2020 September 3: Updated for new url format on chess.com (thanks mhssmnn!).
  2019 December 20: Fixed after recent changes to chess.com.
  2019 October 8: Fixed after recent changes to chess.com. Now works with games against the computer.
  2019 April 16: Support for games from chessgames.com, chess-db.com and chesstempo.com. Improved manifest to limit permissions as much as possible. Icon now becomes enabled only when there is a valid game to analyse. Improved colour of icon so that it is clear when it is available.
  2019 April 4: Fixed after live game. Avoided 'the message port closed...' error.
  2019 April 3: Fixed after recent changes to Chess.com (thanks 0ddFell0w!) . Support for 'daily' games.
  2018 December 8: Fixed after recent changes to Lichess import page.
  2018 October 20: Fixed problem which was preventing working after live games.
  2017 January 3: Fix to link after finished game. Also works from chess.com live analysis.
  2016 November 30: Print-friendly PDF is now a separate Chrome extension (Lichess Print-friendly PDF).
  2016 November 25: Print-friendly PDF now uses AWS lambda.
  2016 November 14: Added 'Print-friendly PDF export' which has recently been removed from lichess.
  2016 July 5: Fixed for recent chess.com changes.
  2016 June 29: Fixed game result in lichess PDF export
  2016 June 16: Fixed css name clash.
  2016 June 16: Fixes for recent chess.com changes. Now works from any live game in v3 (not just your own)!
  2016 June 13: Uses https in lichess.org urls.
  2016 Mar 30: Improved reliability of computer analysis toggle before uploading to lichess.
  2016 Mar 27: Updated to support recent changes to chess.com.
  
  Thanks to Allan Rempel who created a similar plugin for chess.com v2. 
  
  Icon CC-BY-SA 3.0, CBurnett (https://en.wikipedia.org/wiki/User:Cburnett) 
  with adjustments by AntonSusi (https://commons.wikimedia.org/wiki/User:Antonsusi).

Permissions & access

Permissions

activeTab

Host access

None declared

Screenshots

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