How is this different from PDF Compare?

PDF Compare finds text changes. Visual Diff finds any pixel-level change including layout shifts and graphic changes.

No. Pages are rendered locally using PDF.js.

What is the file size limit?

Process files up to the browser memory limit.

Red pixels exist in the first PDF but not the second. Green pixels are new in the second.

Yes — select which pages to compare.

Visually overlay two PDF pages and highlight pixel-level differences. Fast, private, and secure browser-based tool with no si

Your files never leave your device. Processed locally. 100% private.

Unlocking Tool Engine...

Complete your task perfectly in just three straightforward steps.

Upload the two PDF versions to compare visually.

Select overlay, side-by-side, or difference highlight mode.

Download the visual diff report as an image or PDF.

Continue working with our suite of free data utilities.

Compare two CSV files and highlight added, removed, and changed rows. Securely process files in your browser memory with zero

Compare two versions of any text file (JSON, XML, Code)

Find and remove duplicate rows from CSV files based on selected key columns. The safest way to process sensitive data with ze