Text comparison

Compare two texts side by side, with additions and deletions highlighted.

DiffLiveHighlight No upload
Live comparison on Added in B Removed from A
Document A (input)
Document B (input)
Document A (result)
Document B (result)

Paste the old version on the left and the new one on the right. Shortcuts: Ctrl / ⌘ + Enter compares, Esc clears everything.

How to use Text comparison

Add your file

Click the drop area or drag your file onto it. Everything is read locally — the file is never transmitted.

Set the options

Use the controls below. Where a preview is available, check it before you continue.

Download the result

Press the action button. The output is generated in your browser and saved to your normal downloads folder.

Your file never leaves this device. No upload, no account, no watermark.

Text to QR code Turn text or a URL into a QR code image, size and error correction adjustable. Open tool ICO / favicon maker Build a multi-size ICO from an image, letter or emoji, with a browser-tab preview. Open tool Merge PDF Combine several PDFs into one file, in the order you choose. Open tool

Common questions

Is my file uploaded to a server?

No. This tool runs entirely in your browser. There is no upload endpoint, and you can verify it yourself in your browser's network tab — no request carries your document.

Is there a file size limit?

No artificial limit. The real constraint is your device's available memory, since the whole document is held in the tab while it is processed.

Does it work offline?

Once the page has loaded, yes. All libraries are served from this site rather than a third-party CDN, so the tools keep working without a connection.

Will the output have a watermark?

Never. Nothing is stamped on your document, and there is no paid tier that removes one.