Devtools
Guided Code Tours
Record step-by-step tours through a codebase that newcomers can follow
Intermediate14h1–2
Tree-sitterLLMNext.js
17/20Explore a codebase as a map of modules, dependencies and owners.
Build Interactive Codebase Map for new team members in ~24h with 2–3 people. Stack: Tree-sitter + ECharts + LLM.
Why it wins: Impressive visual with clear onboarding value.
| Tech | Role | |
|---|---|---|
| Tree-sitter | Code parsing | Tool |
| ECharts | Interactive charts | UI |
| LLM | Language model | AI |
Open-source projects you can build on. Links checked 2026-10-31.
Devtools
Record step-by-step tours through a codebase that newcomers can follow
Devtools
Turn a database query plan into a visual tree with plain-language tips
Migrate files to TypeScript gradually with inferred types and checks