Compare Files Online

Upload two files to see what changed between them. DiffNow compares text and source code line by line, extracts the text of Word, Excel, PowerPoint, and PDF documents, and compares binary files byte by byte.

How to use it

  1. Drop a file on each side, or click Choose file on each side, and pick the two files.
  2. Click Compare to see both files side by side with the differences highlighted.
  3. Use Save/Share to send a link to the comparison, or Download to save it as an HTML report.

Questions

Which file types can I compare?

Text and source code files, Word (DOCX, DOC), Excel (XLSX, XLS), PowerPoint (PPTX, PPT), and PDF documents, and any binary file.

Is there a size limit?

Free comparisons accept files up to 2 MB each; DiffNow Premium raises the limit to 8 MB.

Can I compare files on my own computer?

Yes, with ExamDiff Pro, the desktop tool that powers DiffNow, with no file size limits. It also compares whole folders and merges changes.