Whatthediff
AI code review tool that reads pull request diffs and writes plain-English summaries, changelogs, and inline refactoring suggestions.
About
What the Diff connects to GitHub or GitLab and automatically reads the diff of every pull request, then posts a human-readable comment describing what changed and why it matters. Non-technical stakeholders get polished changelogs without digging into code, and developers get a weekly summary of all changes across the repo. Inline AI refactoring suggestions help improve code quality directly inside the review. The service supports nearly all programming languages and does not store your source code. A free-forever plan is available, with paid tiers starting at $19 per month for higher usage.