Diff Checker

Compare two blocks of text and highlight the differences line by line.

Diff Checker

Compare two blocks of text and highlight the differences line by line.

What is a Diff Checker?

A diff checker compares two pieces of text and shows what changed between them. This tool performs a line-by-line comparison and highlights added lines in green and removed lines in red, making it easy to spot edits between two versions.

Features

• Line-by-line comparison using a longest-common-subsequence algorithm • Added and removed lines clearly color-coded • Counts of added and removed lines • Works entirely in your browser — nothing is uploaded • Handles large inputs gracefully

How to Use

1. Paste the original text on the left 2. Paste the changed text on the right 3. Click Compare 4. Review the highlighted differences

Frequently Asked Questions

Does it compare word by word or line by line?

It compares line by line, which is ideal for code, configuration files, and documents.

Is there a size limit?

Very large inputs are capped to the first few thousand lines per side to keep the comparison fast and responsive.

Last updated: 2026-06-09

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  • team@builtbyindies.com
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    India
© 2026 yoyotools. All rights reserved.
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