Terminal diffsfor humans & agents
Terminal diffs
for humans & agentsHunk is a review-first diff viewer that plays nice with agents. It's fast, it looks good, and it works everywhere.
$npm i -g hunkdiffStar on GitHub8k
hunk diff — split view
GraphiteMidnightEmberZenburnCatppuccin MochaCatppuccin Latte
\# from the community
Watch a video walkthrough.
JHunk changed the way I write and review code with my agent5:14Jilles · watch on YouTube
DI Was Definitely Using The Wrong Terminal Code Reviewer13:33DevOps Toolbox · watch on YouTube
\# what you get
Don't just read code, understand it.
One stream, every file.
The whole changeset reads top to bottom in sidebar order — no flipping between single-file views. File counts at a glance, hunk jumps with \[ and \], and the sidebar takes you straight to any file.
Your agent's reasoning, beside the code it explains.
Agents leave notes in a sidecar; hunk renders each one inside the diff, right above the hunk it annotates — summary, rationale, and author. Step through hunks with \[ and \] and the notes follow.
“
Hunk is very good. It has replaced any other local diff viewer for me.
Mitchell Hashimoto, creator of Ghostty & Vagrant
Keys when you're fast, mouse when you're browsing.
Click a file in the sidebar to jump, wheel-scroll the stream, hover a row to leave a note — or never leave the keyboard. Pipe patches straight in and hunk is your pager, too.
Split or stack — or let auto decide.
Side-by-side when your terminal is wide, stacked when it's narrow. Auto picks for you; press 1, 2, or 0 to override at any time, with wrapping and line numbers toggled live.
“
Love hunk.
DHH, creator of Omarchy and Ruby on Rails
Real syntax highlighting. Dozens of themes.
Understand structure, not just added and removed lines. Ships with its own looks plus the classics — Catppuccin, Dracula, Gruvbox, GitHub, and more — or roll your own in config.
\# and the rest
Watch mode — reloads as the tree changesExtensions — script Hunk in TypeScriptJujutsu & Sapling — first-class, like GitPager & difftool — pipe any patch inCross-platform — macOS, Linux, WindowsYour own themes — roll a palette in config
\# install
Wherever your terminal lives.
- npm`npm i -g hunkdiff`
- Homebrew`brew install hunk`
- Nix`nix run github:modem-dev/hunk`
Then hunk diff to review your working tree, or hunk show to review a commit. npm installs require Node.js 18 or newer.