Side-by-Side Word Diff
Compare two texts word by word with inline insertions and deletions highlighted. Perfect for detailed editing review.
About This Free Online Side-by-Side Word Diff
Our free online Side-by-Side Word Diff compares two texts at the word level, showing exactly which words were added, removed, or changed. Unlike line-based diff tools, this provides granular detail — perfect for editors reviewing sentence-level changes, students checking rewrites, or anyone who needs to see exactly what words changed between two versions. Changes are highlighted inline with green for additions and red for deletions within each line. All processing runs in your browser.
Features of Our Side-by-Side Word Diff
- Word-level diff within each line
- Insertions highlighted in green
- Deletions highlighted in red
- Side-by-side original and modified view
- Line-level context with word changes
- Real-time comparison as you type
- 100% private — browser-only processing
How to Use the Side-by-Side Word Diff
The Side-by-Side Word Diff works right in your browser — no signup, no installation. Follow these steps:
- Paste the original text into the left textarea.
- Paste the modified text into the right textarea.
- View the word-by-word diff with inline highlights.
- Copy either version using the action buttons.
Frequently Asked Questions About Side-by-Side Word Diff
How is this different from the Text Diff Checker?
This tool highlights changes at the word level within lines. The Text Diff Checker shows line-level changes. Use this for detailed editing review and the line diff for broader comparison.
How are changes displayed?
Within each changed line, words that were removed are shown with a red background/strikethrough, and words that were added are shown with a green background.
Why Choose the Side-by-Side Word Diff?
Bulk text edits that would take ages by hand happen in one step with the Side-by-Side Word Diff. It applies your changes the moment you make them, entirely in the browser, so your content stays on your device and the result is ready to copy immediately.