Yes. All 42 tools are 100% free with no signup, no ads in your face, and no hidden limits. The core tools will always be free.

Do AHX tools upload my data to a server?

No. Every tool runs entirely in your browser using JavaScript. Your data never leaves your device.

Can I use AHX offline?

Yes. Once the page has loaded, every tool works without an internet connection. AHX is installable as a PWA.

Is Text Diff Checker free?

Yes. Text Diff Checker is 100% free with no signup and no usage limits.

Does Text Diff Checker upload my data?

No. Text Diff Checker runs entirely in your browser. Your data never leaves your device.

Do I need to install anything?

No. Text Diff Checker works in any modern web browser. Just visit the page and start using it.

AHX

Text Diff Checker

Compare two texts and highlight the differences.

Ignore caseIgnore whitespace

Original text

Modified text

Runs entirely in your browser. No data leaves your device.

About Text Diff Checker

Compare two texts and see the differences highlighted line by line. Additions are shown in green, deletions in red. Useful for comparing code, documents, or any text. Everything runs in your browser.

Common use cases

Compare document revisions
Check code changes
Review text edits
Spot differences between versions

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