What this tool does
The diff checker lines up two versions of a text and marks every difference. It works line by line, like the tools programmers use, and then highlights the exact words that changed inside each changed line, so a single edited number in a long contract stands out.
Code, documents and data
Compare source code, JSON, CSV, config files, essays, contracts or any plain text. Open files straight from your computer, up to several megabytes each. Download the result as a standard unified .diff file that git and code review tools understand.
Privacy
Both texts are compared inside your browser. Nothing is uploaded, which makes it safe for private documents and unreleased code.
Questions
Can it compare Word or PDF files?
It compares text. To compare documents, convert them first with PDF to text or Word to Markdown, then paste both here.
Why does a moved paragraph show as removed and added?
A diff shows the smallest set of line changes. A paragraph moved to a new place counts as removed in one spot and added in another.