Srcbook

The notebook interface lets developers create and run TypeScript cells interactively, with full access to the npm ecosystem for importing any package. Cells can include rich annotations through Mermaid diagram support, and notebooks export to valid Markdown files for easy sharing, version control, and documentation alongside codebases.

Srcbook's AI coding assistant integrates with multiple LLM providers including Anthropic (Claude), OpenAI, and local models with the team specifically recommending claude-3-5-sonnet for the best experience.

The AI can generate boilerplate code, explain existing cells, refactor logic, and modify entire application components through natural language chat grounded in the current notebook context.

Beyond notebooks, Srcbook functions as a full AI app builder: users can describe a web application in plain language, and the AI generates the complete application structure with hot-reloading preview available immediately. This makes Srcbook particularly powerful for rapid prototyping, building internal tools, and experimenting with new ideas before committing to a full development setup.

The open-source version is free to use locally under the Apache 2.0 license, requiring only that users provide their own AI provider API keys. A cloud-hosted version is available with a free tier of 5 AI prompts per day, and a paid starter plan at $20 per month for teams or individuals who prefer a managed environment without local setup.