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2つのテキストを比較し、行単位で違いをハイライトする無料オンラインツール。
Diff チェッカー is a free online 開発 tool that works right in your browser — whatever you enter is processed locally and never sent to a server. No installation, no signup; works on both phone and desktop, ready to use instantly.
開発者向けのコードツール。シンタックスハイライト、リアルタイムバリデーション、フォーマット機能を備え、JSON、XML、YAML、SQL などの主要フォーマットを全面サポートします。
As developers ourselves, we kept switching between scattered tools that sent our code to unknown servers. We built this developer suite so formatting, validation, and conversion all run locally — your code stays yours.
はい、完全無料で登録不要です。
はい、モバイルブラウザでタッチ操作に対応しています。
開発
JSON、XML、YAML、SQL、CSV、TOMLなどをサポートし、Java、Python、TypeScriptなどのコードフォーマット変換にも対応しています。
ToolPure supports JSON, XML, YAML, TOML, CSV, SQL, and Markdown formatting. Validation includes syntax checking, schema validation for JSON, and well-formedness checking for XML.
Yes, you can convert between JSON, XML, YAML, CSV, and TOML. The converter preserves data types, nested structures, and array indices during conversion.
Files up to 10MB can be formatted without issues. For larger files, the tools use Web Workers to prevent UI freezing. Syntax highlighting supports files with up to 100,000 lines.
Yes. Diff チェッカー is a pure front-end tool: whatever you type or paste is processed only in your browser's memory and never sent to a server. It disappears as soon as you refresh or close the page.
🔒 Privacy & Security：All processing happens locally in your browser. Files are never uploaded or stored.
🔒 Privacy: All processing happens locally in your browser. Your files and data never leave your device — no upload, no server, no tracking.