Features
- Side-by-side text comparison
- Line-by-line additions (green) and removals (red)
- Word-level diff for changes within lines
- Ignore whitespace option
- No signup, no upload
- Ad-free
- Works offline after first load
How it works
- Open freediffchecker.app
- Paste original text in the left input
- Paste new text in the right input
- Differences highlight automatically
Common use cases
- Comparing two versions of a config file
- Manual code review without git
- Legal document revision tracking
- Log file comparison for debugging
- Checking edits to a written draft
How it compares
DiffChecker.com is the most common result but has ads and an upsell to a paid tier. Freediffchecker is the same core functionality, ad-free and unlimited.
Privacy
Both texts stay in your browser. Safe for sensitive content comparison.