See what changes together, beyond the diff.

Most PR reviews only look at the changed lines. RepoLens also shows what usually changes with them but is missing, using the code's import links and the project's history.

Try a demo repo →Zero setup • Works offline

Analyze your own repositoryLive

Public JS/TS repos • Up to 1,000 commits

Paste any public GitHub repository URL to build its interactive import graph, co-change history, and verified Q&A index in real time.

Try it in 30 seconds

A rapid walkthrough of deterministic co-change inspection.

1Choose demo repository

Explore the 31-node structural import graph and historical co-change pairings with persistent edge filters and inspector.

2Open a sample PR

Inspect changed files, bounded diff excerpts, and a transparent rule-based heuristic risk breakdown.

3Check evidence

Review related files not in the PR, concrete shared commit counts, directional confidences, and import context.

Question-answering with mechanically checked citations is available in the demo. Ask questions about Zustand →Deterministic verification

Demo Repositories

Pre-analyzed repositories with verified structural and co-change artifacts.

Zustand

MIT

Small, high-traffic state management library with a clean modular architecture and rich Git co-change history.

LanguageTypeScript / JS

Snapshot commitd867e6f

Analyzed files31 source files

Sample PRs3 pull requests

Open Repository Map →