diff

Compare Two Lists — Drop two newline-separated lists into the boxes and instantly see what is shared, what is unique to each, and the merged union.

Text Diff / Compare — Compare two blocks of text and see exactly what changed — added lines in green, deleted in red, unchanged in gray.

JSON Diff — Compare two JSON values structurally — see exactly what was added, removed, or changed, with full key paths.

Free side-by-side text comparison tool. Highlight line differences and character-level additions or deletions instantly inside your browser.

Code Diff & Merge — Compare two code snippets side-by-side. View additions and deletions with syntax highlighting, and merge changes interactively with ...

Free online pdf compare. No signup, no upload — works entirely in your browser. Fast, private, and free forever.