Community-driven AI coding assistant
MarieCoder is a community fork of Cline, the open-source AI coding assistant that's democratizing AI-assisted development. We're building on their incredible foundation to explore additional features and workflows that serve our community's needs.
Part of the democratic development movement - AI coding tools should be open, transparent, and controlled by users.
Marie Curie broke barriers in science with curiosity and precision. MarieCoder brings that same spirit to coding - making powerful AI development accessible to everyone, regardless of experience level.
Chat with an AI that can:
- Create and edit files in your codebase
- Run terminal commands (with your approval)
- Browse and test your web apps
- Fix bugs with full context
- Extend itself with custom tools
Every action requires your approval. You're always in control.
1. Install MarieCoder in VS Code
2. Add your AI API key
3. Start chatting about what you want to build
4. Review and approve changes
5. Ship itThe Cline project pioneered something revolutionary: proving that powerful AI coding assistants don't need to be proprietary black boxes. They can be:
- Open source - fully transparent codebase
- User controlled - you approve every action
- Model agnostic - use any AI provider you want
- Community driven - built with and for developers
MarieCoder carries forward this mission. We're not replacing Cline - we're contributing to the ecosystem they created. Both projects share the same core values and vision for democratic development.
Huge respect to the Cline team for making this possible. Their openness and commitment to user autonomy inspired us to build alongside them.
Talk to your codebase in natural language. MarieCoder understands context, patterns, and project structure.
Create, edit, and refactor files. See diffs before accepting. Give feedback and iterate until it's right.
Execute commands, install packages, run tests, start servers. MarieCoder monitors output and adapts as it works.
Launch browsers, interact with your UI, capture screenshots, read console logs. Perfect for web development.
Connect to databases, APIs, and external services using Model Context Protocol. Create custom tools for your workflow.
Use @file, @folder, @url, and @problems to give MarieCoder exactly what it needs.
Drop in screenshots or mockups. MarieCoder recreates them as working code.
Every step is saved. Compare versions, restore any previous state, experiment freely.
MarieCoder works with any AI provider:
Cloud Providers:
- Anthropic Claude (high quality)
- OpenRouter (200+ models)
Switch between them anytime. Use what fits your budget and privacy needs.
"Build a React dashboard with charts" Creates components, adds visualization library, implements data flow. Fast.
"This form validation isn't working" Analyzes the code, finds the logic error, fixes it, tests it. Done.
"Refactor this to use async/await" Updates functions, handles errors properly, maintains behavior. Clean.
"Add dark mode throughout the app" Updates styles, adds toggle, persists preference. Works everywhere.
Give MarieCoder exactly what it needs:
@file src/components/Header.tsx → Include specific file
@folder src/utils/ → Include entire folder
@url https://api-docs.example.com → Fetch external docs
@problems → Include all VS Code errors
Efficient and precise.
User Control First Every file change, terminal command, and browser action requires approval. No surprises.
See Everything Full diffs for file changes. Clear explanations for actions. Complete transparency.
Iterate Freely Don't like something? Give feedback. MarieCoder adapts and tries again.
Save Checkpoints Restore to any previous state. Experiment without risk.
VS Code → Extensions → Search "MarieCoder" → Install
Click MarieCoder icon → Settings → Choose AI provider → Add API key
Open chat → Describe what you want → Review changes → Approve → Done
Be specific: "Add pagination to the user table" beats "improve the UI"
Use context: @file and @folder help MarieCoder understand your project
Iterate quickly: Fast feedback loops get better results
Break it down: Smaller, focused tasks work best
Mix models: Use cheaper models for simple tasks, powerful ones for complex work
We're building together:
- 💬 Discord - Daily discussions and support
- 🐛 GitHub Issues - Bug reports
- 💡 Discussions - Ideas and feedback
- ⭐ Star the Project - Show support
Both MarieCoder and Cline communities welcome you. We're all building the future of democratic development together.
How much does it cost? Extension is free. AI usage costs vary ($0 with Ollama to ~$3/hour with Claude Sonnet).
Is my code private? Depends on AI provider. Cloud services process your code. Use Ollama for complete privacy.
What can it build? Anything you can build in VS Code. Works with all languages and frameworks.
How is this different from Copilot? Copilot autocompletes. MarieCoder plans, builds, tests, debugs, and iterates with you.
Can I use both Cline and MarieCoder? Yes! Both are part of the same ecosystem. Try both and use what works for you.
Why fork instead of contribute to Cline? We're exploring different features and approaches while maintaining the same core mission. Both projects benefit from diverse experimentation.
We welcome contributions! See CONTRIBUTING.md for details.
Whether you contribute to MarieCoder, Cline, or both - you're helping build the democratic development movement.
MarieCoder is licensed under Apache 2.0 Built by the MarieCoder community
Built on Cline - Apache 2.0 © Cline Bot Inc. Cline pioneered democratic AI-assisted development and made it open source.
We're deeply grateful to the Cline team for:
- Creating an incredible foundation
- Championing open-source AI tools
- Proving that users should control their AI assistants
- Inspiring a movement toward democratic development
Their vision made projects like MarieCoder possible.
Democratic development for everyone ⚡
Join the movement. Build openly. Ship freely.