텍스트 비교
Compare two texts side-by-side and see line-by-line differences. 무료, in-browser.
What is a text diff?
A text diff compares two versions of a document and highlights what changed between them. Developers check configuration files and pull requests, editors review revised drafts, and students compare their work against a corrected version — a diff checker shows added and removed 줄 side by side so no change goes unnoticed.
This free text diff tool 줄 up your original and modified texts and marks each changed line in one view: removed text is struck through and new text is highlighted in green. Everything runs in your browser with no upload, which makes it safe for unpublished drafts, private documents, and code you would rather not share with a third-party service.
사용 방법 compare text online
- Paste the original version into the Original text box and the revised version into the Modified text box.
- Click Compare — every line is checked and differences are highlighted row by row.
- Scan the output: unchanged 줄 stay plain, removed text is struck through, and added text appears in green.
Frequently asked questions
Is my text uploaded?
No — comparison runs entirely in your browser. Your text is never sent to a server, so private documents and unpublished code stay on your device.
How does it show differences?
Differing 줄 are highlighted with strike-through for removed text and green for added text, so you can see exactly what was deleted and what replaced it.
Is HTML or code compared correctly?
Yes — the tool compares text line by line as plain text, so HTML, JSON, and source code are handled exactly as they are written.
Can I compare files instead of pasting?
You can paste the contents of both files directly into the two boxes — the comparison itself is identical. This keeps everything private, since no file is uploaded anywhere.