Home /
Tools /
Text & Writing /
Text Diff Checker

📋

Text & Writing

Text Diff Checker

Compare two texts and highlight the differences.

Workspace

Run the tool here

Browser utility

Input

Revised text

Output

Run the workspace to see the response here.

How to use

Paste the original version.
Paste the revised version.
Review the highlighted changes before accepting them.

About this tool

Compare two pieces of text and highlight insertions, deletions and unchanged passages.

Text Diff Checker is part of the TmpMailer Text & Writing set — free browser utilities that open instantly, need no account, and pair well with a temporary-email workflow when you just need a quick result.

Common use cases

Spotting edits between two drafts.
Reviewing a translation against the source.
Checking a config diff before deployment.

Common questions

Is the comparison word-level or character-level?

It highlights at word level, which reads better for prose than a raw character diff.

Can I compare code?

Yes, though line-based tools are usually clearer for code because indentation changes create noise.

Is my text stored?

No. The comparison runs in the browser.

Related tools

📝

Lorem Ipsum Generator

Generate placeholder text for your designs, mockups, and...

🔢

Word Counter

Count words, characters, sentences, and paragraphs in an...

🔤

Case Converter

Convert text between uppercase, lowercase, title case, a...

🔁

Text Repeater

Repeat any text multiple times with customizable separat...

🔗

URL Slug Generator

Convert any text into a clean, SEO-friendly URL slug.

🔄

Palindrome Checker

Check if a word or phrase reads the same forwards and ba...