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diff●scan
Compare Two Texts
Spot every change instantly.
Additions. Removals. Nothing escapes.
Client-side processing
No data leaves your browser.
Quick guide
Paste two versions of text separated by ---.
The tool compares line-by-line and highlights differences.
Use it to review config changes, prompts, or content updates without scanning manually.
Real example
Input:
old value
---
new value
Output:
- old value
+ new value
How to read the diff
- - line → removed from original
- + line → added in new version
Use cases
- Compare API payloads before/after fixes
- Review prompt or policy changes
- Track config edits in deployments
- Validate generated content differences
FAQ
How do I separate texts?
Use --- on its own line.
Does it compare words or lines?
Line-based comparison for speed and clarity.
Best use case?
Fast review of structured or semi-structured text changes.
Learn more
- JSON Formatting Guide Improve readability and diff clarity.
Privacy
All processing runs locally in your browser.