hdiff

A terminal pager for unified diff output — colored, with keyboard navigation between change chunks.

If you've ever piped helmfile diff, git diff --no-color, or any other unified diff to less and found yourself searching for @@ over and over, this is the fix.

What it does

hdiff reads a unified diff from stdin, colors it, and drops you into an interactive pager:

• + lines in green, - lines in red, @@ hunk headers in cyan, file/section headers in yellow
• Contiguous blocks of changes are treated as a single chunk — n/N jumps between them directly, skipping unchanged context
• Mouse wheel scrolling works out of the box
• Terminal state (raw mode, mouse reporting) is always restored on exit, even on Ctrl-C

It's particularly useful for helmfile diff output, which mixes Kubernetes YAML changes across many resources in one stream. n takes you straight from one changed resource block to the next.

Usage

<any-diff-command> | hdiff

Examples:

helmfile diff | hdiff
git diff | hdiff
kubectl diff -f manifest.yaml | hdiff

Key bindings

Key	Action
n	Next chunk
N	Previous chunk
j / ↓	Scroll down one line
k / ↑	Scroll up one line
Space / Page Down	Page down
b / Page Up	Page up
Mouse wheel	Scroll
q	Quit

Install

Using bbin:

 bbin install io.github.tkrueger/hdiff

Requirements

• Babashka bb on your PATH