Highlight Text Differences
Editorial visual diff tool. Compare versions with track-changes style highlighting and export summary reports.
The Ultimate Visual Diff Tool
The Highlight Text Differences tool is designed for specialized editorial work. Unlike generic diff checkers, it treats your text like a story, contract, or essay—focusing on the flow of words rather than lines of code. With advanced features like Focus Mode and PDF Export, it’s the perfect companion for anyone who works with words.
Export PDF Report
Generate a downloadable PDF summary of your changes. Perfect for submitting proof of edits to clients or professors.
Deep Analysis
Get insights with a Similarity Score and estimated Reading Time for the new version.
Focus Mode ⚡
Dim the noise. Focus mode fades out unchanged text so you can spot even the smallest edit instantly.
Who is this for?
🎓 Students & Academics
Check your essay revisions or verify that you've sufficiently paraphrased a source.
⚖️ Legal Professionals
Compare contract versions to ensure no unauthorized clauses were slipped in during negotiations.
✍️ Writers & Editors
Track changes on a manuscript or verify that an editor's suggestions were implemented correctly.
How to Use
- Upload or Paste: Input your 'Before' and 'After' texts.
- Focus: Toggle "Focus Mode" if you want to isolate changes.
- Analyze: Check the "Similarity Match" score in the toolbar.
- Export: Click "PDF Report" to save a record of your work.
Frequently Asked Questions
What is the Highlight Text Differences tool?
The Highlight Text Differences tool is a free online application that visualizes changes between two text versions using editorial 'Track Changes' highlighting (Red for deletions, Green for additions).
Can I export the comparison to PDF?
Yes! Click the 'PDF Report' button to instantly download a professional summary of the comparison, including similarity scores and the final text.
What is 'Focus Mode'?
Focus Mode dims all the unchanged text, making the edits (red/green) pop out. It's incredibly useful when you're skimming a long document to find small tweaks.
How is similarity calculated?
We analyze the shared vocabulary overlap between the two texts. A score of 100% means they are identical, while 0% means they are completely different.
Is this tool suitable for legal contracts?
Absolutely. The word-level precision ensures that even if a single 'not' is removed or value changed, it will be highlighted clearly in red.
How is this different from a code diff tool?
Code diff tools usually compare line-by-line. This tool compares word-by-word and presents the result like a document editor with 'Track Changes' enabled, making it much better for prose.
What is 'Track Changes' mode?
This is the default view where deleted text is shown in red with a strikethrough, and added text is shown in green.
Is it good for plagiarism checking?
It is excellent for manual checking. Paste the suspect text and source text to see exactly which words were copied verbatim.
Is my text private?
Yes. All processing happens 100% in your browser. We never see, store, or upload your documents.
Can I ignore capitalization changes?
Yes, enable the 'Ignore Case' checkbox to treat 'The' and 'the' as the same word, reducing visual noise.
Is it free to use?
Yes, unlimited free usage forever.