What diff algorithm does this use?

It uses the Myers diff algorithm, the same algorithm behind git diff. It finds the minimal set of changes between two texts.

Is my data sent to a server?

No. All comparison happens locally in your browser. Your text never leaves your device.

What diff algorithm does this use?

It uses the Myers diff algorithm, the same algorithm behind git diff. It finds the minimal set of changes between two texts.

Is my data sent to a server?

No. All comparison happens locally in your browser. Your text never leaves your device.

無料

テキスト差分

2つのテキストを並べて比較し、変更箇所を確認。追加、削除、変更なしの行がハイライトされます。

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オリジナル

変更後

Text Diffについて

Paste two versions of text and instantly see a line-by-line diff with additions, deletions, and unchanged lines highlighted. Useful for comparing config files, code snippets, API responses, or any text content. Runs entirely in your browser.

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JSON Formatter & Validator

Format, minify, and validate JSON online.

Paste JSON to format with custom indentation, minify for production, or validate structure. Shows key counts, nesting depth, and data type breakdown. Works entirely in your browser.

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Convert HTML to valid React JSX instantly.

Regex Tester

Test regular expressions with live highlighting.

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