Text Diff — Browser Text Tool

Text

Text Diff is a browser text tool that compares two text blocks line by line.

Text Diff

Runs in this browserInput and recent results are processed only in this browser tab. They are not sent to or stored on a server.

This list stays only in current-tab memory and is cleared on reset.

Text to compare

ResultRule

—

Text before and after a standalone --- line is compared line by line; unchanged, removed, and added rows are marked with space, -, and +.

What is it

Text Diff lets you paste text, transform or analyze it, and read the result immediately. It is useful for editing, cleanup, and repeatable text preparation without server storage.

diff = compare(lines(before), lines(after))

How to use

1Paste or type text.
2Choose an option if available.
3Read the transformed result.

Reference

Text Diff — Browser Text Tool Reference
Input	Result
Hello World	compares two text blocks line by line

Sources & standards

MDN Web Docs: Client-side web APIs - MDN Web Docs

FAQ

Is Text Diff input sent to a server?

No. This tool runs in your browser and does not send input to a server.

Can I use Text Diff on mobile?

Yes. It works on mobile and desktop browsers that support text input.