Text Diff / Compare
Compare two blocks of text and see exactly what changed — added lines in green, deleted in red, unchanged in gray.
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How to use Text Diff / Compare
- Paste the original text on the left.
- Paste the changed text on the right.
- Read the colored diff below.
What is Text Diff / Compare?
Useful for proofreading edits, comparing versions of a document, or reviewing config changes. Uses the longest-common-subsequence algorithm for accurate line-by-line diffing.
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FAQ
- Is this character-level or line-level?
- Line-level. Each line is either unchanged, added, or deleted — no inline highlighting within a changed line.
- Do you save the text I compare?
- No, both texts are processed entirely in your browser and are never sent to or stored on any server.
- Can I compare text from files?
- Yes, you can paste content from any file; the tool works with plain text copied into the input fields.
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