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Preview of Codeforces Lite

Codeforces Lite by Devendra Suryavanshi

Codeforces Lite enhances competitive programming with a dark theme, advanced code editor, and built-in code execution. Write, test, and submit solutions directly from problem pages with syntax highlighting and smart code storage.

5 (1 reviews)5 (1 reviews)
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About this extension
Improve your Codeforces experience with Codeforces Lite, a must-have Firefox extension for competitive programmers.

➤ Customizable Dark Theme & UI Enhancement: Enjoy a sleek dark mode that reduces eye strain and a refined, intuitive user interface for smoother navigation and coding.
➤ Editor from VS Code (Monaco): Write, time, and submit code directly on Codeforces with language customization, auto-indentation, and an integrated timer and customizable editor themes.
➤ Live Code Execution: Run your code instantly with real-time results, detailed metrics, and comprehensive error messages with support of Judge0.
➤ Custom Templates: Automate repetitive setups with personalized code templates for faster problem-solving.

Developed by Devendra Suryavanshi and Maanas Sehgal, Codeforces Lite is designed to boost your coding efficiency and streamline your competitive programming workflow.

If you liked the extension, please drop a 5⭐ review.
Github: https://github.com/MaanasSehgal/Codeforces-Lite
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Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access your data for codeforces.com

Optional permissions:

  • Access your data for all websites
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Version
1.4.1
Size
5.51 MB
Last updated
21 days ago (Aug 2, 2025)
Related Categories
  • Web Development
  • Appearance
License
MIT License
Version History
  • See all versions
Tags
  • dark mode
  • user scripts
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Release notes for 1.4.1
Editor Configuration:
- Keybinding Modes: Choose between Standard editor shortcuts or Vim keybindings for power users
- Standard mode: Traditional editor shortcuts
- Vim mode: Full Vim keybinding support with status line integration
- Line Numbers Display: Customize line number appearance
- On: Standard line numbers
- Relative: Relative line numbering (popular with Vim users)
- Off: Hide line numbers completely
- Cursor Customization:
- Multiple cursor styles: Line, Block, Underline, Line Thin, Block Outline, Underline Thin
- Smooth caret animation controls (On/Off/Explicit) for enhanced visual feedback
- Editor Appearance: Fine-tune indentation, minimap, line wrapping, and auto-suggestions
- Real-time Preview: See your settings applied instantly in the live preview editor

Vim Integration:
- Full Vim keybinding support powered by monaco-vim
- Dedicated Vim status line showing current mode and commands
- Seamless switching between Standard and Vim modes
- Maintains Vim muscle memory for experienced users

This comprehensive settings system allows you to create the perfect coding environment tailored to your preferences and workflow.
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