SMRTR ProgrammingJul 5, 2026Hacker News

Diffy – browser extension for faster GitHub PR review experience

SMRTR summary

Diffy is a browser extension that replaces GitHub's built-in PR review interface with a full-screen, continuous diff viewer. It bypasses GitHub's documented limits — like the 20,000-line diff cap and 406 errors on 300+ file PRs — by fetching changes through the API directly. Features include batch reviews, inline comments, a searchable file tree, split/unified layouts, 100+ language support, and 50+ themes, all under 2 MB.

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