Local-first • No server upload
Text

Text Difference Checker

Compare two text files or blocks locally and see line-level differences. — 100% browser-side, no server upload, works offline.

Text utility

Compare two text blocks

Local processing

How to Compare Two Text Files Line by Line

When two versions look almost identical, a line-by-line comparison shows where they diverge without sending either copy to a server.

Read the guide →

Common questions

Is either text uploaded?

No. Both text blocks stay in this browser.

What does a minus line mean?

A minus line exists in the original but not at the matching position in the revised text.

Explore the category

Browse more text tools

Find another tool for your workflow.