ToolsXpo
ToolsXpo

Code Diff Viewer

Compare two code blocks side-by-side and instantly highlight additions, deletions, and unchanged lines.

Configuration

Trim and normalize spaces

Case-insensitive comparison

This tool has an API.Automate it from your code — 1 credit/call.Open in Playground

New here? Create a free account and call this tool from your code in minutes.

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How to use Code Diff ViewerEvery option explained, a worked example, and what to check when the output looks wrong.Read the guide

Compare Code Changes Instantly

Our Code Diff Viewer provides a simple way to compare two versions of code and see exactly what changed. Perfect for code reviews, debugging, and tracking modifications across file versions — all processed in your browser.

How to use Code Diff Viewer

  1. Paste or type your input into the editor on the left.
  2. Leave the defaults, or tweak them if the tool exposes options.
  3. The result appears on the right as you type.
  4. Copy the output or download it.

This tool runs in your browser. Your input is not uploaded or stored.

Use it from the API

Everything this page does is also available as a REST endpoint, so you can call Code Diff Viewer from your own code, a script or a CI pipeline.

Bash
curl "https://api.toolsxpo.com/v1/code-diff-viewer" \
  -H "Authorization: Bearer txp_live_YOUR_KEY"

The endpoint returns a JSON envelope ({ ok, data, meta }) and costs 1 credit per successful call. Try it in the playground or browse the full API reference.

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