Compare2Word – Compare Word documents online with privacy and format support

Summary: Compare2Word is a free online tool that compares Word, PDF, and Excel documents side-by-side, highlighting differences instantly without uploading files. It processes modern formats entirely in the browser using Web Workers for performance and supports legacy .doc files.

What it does

It compares two documents by parsing files locally in the browser to detect content changes while ignoring insignificant differences. The tool supports complex layouts in Word, PDF, and Excel formats without requiring software installation.

Who it's for

Ideal for users needing to compare sensitive or complex documents like contracts and specifications without risking privacy or format limitations.

Why it matters

It solves privacy concerns by keeping files on the device and addresses format limits by supporting multiple document types and legacy files.