Spotting Differences in Code and Text Efficiently

"What changed?" It's a question developers ask daily. Whether you're reviewing a pull request or figuring out why a document looks different, a diff checker is indispensable.

Our Diff Checker is free and works right in your browser.

What is a Diff?

A "diff" (short for difference) is a comparison between two pieces of text or code. It highlights:

• Additions: Lines that exist only in the new version.
• Deletions: Lines removed from the original.
• Changes: Lines that were modified.

Use Cases

• Code Reviews: Quickly see what a teammate changed before approving.
• Version History: Compare drafts of a document.
• Debugging: Find where a bug was introduced.

How to Use the Axonix Diff Checker

1. Paste the original text into the left panel.
2. Paste the modified text into the right panel.
3. View the diff: Additions in green, deletions in red.

It's color-coded, clear, and fast.

Compare your files now.