diffy
Fast PR review experience on GitHub, even for large PRs
See the whole PR in one scrollable view. Jump to any file, comment inline, and publish your review when you are ready. GitHub's Files changed works for small PRs but struggles with large ones. diffy is a dedicated viewer for PRs with hundreds of files and heavy review threads.
Demo
Whole PR, one view
GitHub chops large PRs into pages. diffy keeps the full diff in one scroll, with a searchable file tree so you can jump straight to what matters.
Comment where you are reading
Leave inline comments as you go. The composer supports edit and preview, so you can shape the note before it lands on the PR.
Split or unified
Some reviews need side-by-side. Others need a single column. Switch layouts without leaving the flow.
Finish from the review dock
Queue threads while you read, then write a summary and publish everything from the dock when the review is done.
Make it yours
Themes, fonts, line height, and small layout toggles stay out of the way until you need them.
Images and SVGs count too
Binary assets get a real side-by-side view, so you can review visual changes with the same care as code.