Show HN: Diffity – Mac App for Reviewing Diffs

Category: devtools

Tags: code-review, macos, ai-assistant, diff-viewer, claude-code

Score: 7.0/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 7)

Diffity is a macOS app for reviewing code changes, both locally and from pull requests, with a focus on collaboration with AI (Claude Code). It allows inline commenting on diffs, sending comments to Claude for automatic fixes, and reviewing/submitting PRs. The integration of AI into the diff review workflow and polished native UI make it an interesting tool for developers.

Target audience: backend developers, frontend developers, software engineers, AI-assisted coding users

Repository: https://diffity.com/ · TypeScript · MIT · 892 stars

View on Hacker News