🔀
🐞

Debug Unexpected JSON Changes

Pinpoint why a JSON object isn't what you expected.

ログイン不要

💡 A structural diff (not line-by-line): it walks both objects and reports exactly which paths were added, removed, or changed — even deep inside nested objects and arrays. Everything runs in your browser.

debugging tips

🐞

Compare the actual output against the expected one to see precisely where they diverge.

🧪

Great for diagnosing failing snapshot tests or serialization bugs.

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Array elements are compared by index, so reordering shows up clearly.

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Nothing is uploaded.

使い方

1
入力
Enter your data into the tool above. Everything stays local to your browser.
2
処理
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
ダウンロード
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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完全に無料 — 隠れたコストは永遠にありません
アカウント、メール、ログイン不要
ファイルがデバイスを離れることはありません
ファイルサイズの制限は一切ありません
出力に透かしなし

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