Document tools
Compare two files side by side.
Upload or paste any two text-based files and get an instant line-by-line diff with word-level highlighting. Runs entirely in your browser — no uploads, no servers.
01
Upload or paste File A
Drop your first file onto the left zone, browse for it, or switch to Paste mode to type or paste text directly.
02
Upload or paste File B
Do the same on the right side for the second version or copy of the file.
03
Click Compare
The diff runs entirely in your browser — nothing is uploaded to any server.
04
Review the results
Check the similarity score and change summary, then scroll through the highlighted diff. Use "Changes only" to jump straight to differences.
Plain text: .txt · .md · .log · .csv
Code: .js · .ts · .py · .java · .c · .cpp · .go · .rs · .php · .rb · .sh
Data & config: .json · .xml · .yaml · .toml · .ini · .env · .sql
Web: .html · .css · .jsx · .tsx · .graphql
Documents: .docx (Word)
File A
Drop file here or browse
.txt · .docx · .json · .xml · .csv · .js · .py · and more
VS
File B
Drop file here or browse
.txt · .docx · .json · .xml · .csv · .js · .py · and more