Compare two pieces of text — or two PDF documents — and get a unified diff of added, removed and changed lines.

Is Text Diff free to use?

Yes — Text Diff is free to use, with no sign-up, no install and no account.

Does Text Diff upload or store my data?

No — Text Diff runs entirely in your browser, so your text, files and results never leave your device.

No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.

What is Text Diff?: Compare two pieces of text — or two PDF documents — and get a unified diff of added, removed and changed lines.
Is Text Diff free to use?: Yes — Text Diff is free to use, with no sign-up, no install and no account.
Does Text Diff upload or store my data?: No — Text Diff runs entirely in your browser, so your text, files and results never leave your device.
Do I need to install anything to use Text Diff?: No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.