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onceover

v0.2.1

Published

Give your code a once-over. Beautiful git diff viewer in your browser — one command, zero config.

Downloads

296

Vulnerabilities

Powered byPowered by Snyk
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  • 0Medium
  • 0Low

Links

Git

Maintainers

michaelwegrzynmichaelwegrzyn

Keywords

gitdiffviewercode-reviewcliaiagent

Readme

onceover

Give your code a once-over.

Your AI agent just rewrote half your codebase. git diff in the terminal is a mess. Opening your IDE just to review changes feels heavy. You just want a quick, clean look at what changed.

npx onceover

That's it. A browser tab opens with a GitHub-quality diff view. No server, no config, no install. The CLI exits immediately — nothing left running.

onceover demo

Inline Feedback

Spot something? Click the + on any line number to leave a comment. A review sidebar builds a structured prompt as you go — file paths, line numbers, and your instructions. Hit Copy Review and paste it straight into Claude Code, Cursor, or any AI coding tool.

npx onceover → scan → comment → copy → paste into terminal → agent fixes → npx onceover again

Comments persist across refreshes via localStorage (keyed by diff content). New diff = clean slate.

Usage

npm install -g onceover   # or just use npx

onceover              # unstaged changes
onceover --staged     # staged changes only
onceover --all        # staged + unstaged vs HEAD
onceover main         # diff against a branch
onceover HEAD~3       # last 3 commits
onceover abc123       # changes since a specific commit

Requires Node.js 18+ and git.

How it works

  1. Runs git diff in your current repo
  2. Injects the diff into a pre-built HTML template
  3. Writes it to a temp file
  4. Opens your browser
  5. Done

The HTML viewer is a React app bundled into a single file at build time (~115KB gzipped). At runtime, the CLI just does string replacement and file I/O — it's near-instant.

License

MIT