Best Free Data Conversion Tools
Free online data conversion tools. Convert between JSON, YAML, CSV, XML, and more formats instantly.
6 recommended tools
1
YAML ⇄ JSON コンバーター
YAML と JSON を相互変換
2
CSV ⇄ JSON コンバーター
CSV と JSON を相互変換
3
XML ⇄ JSON コンバーター
XMLとJSON形式間の変換
4
JSON to TypeScript
TypeScript インターフェースを生成
5
XML → Java クラスコンバーター
JAXB & Lombok対応のアノテーション付きJavaクラスにXMLを変換
6
画像 ↔ Base64 コンバーター
画像をBase64に変換、またはBase64を画像にデコード
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Best Free Data Conversion Tools
Free online data conversion tools. Convert between JSON, YAML, CSV, XML, and more formats instantly. All tools are free, require no installation, and process data entirely in your browser for maximum privacy and speed.
How to Get Started
- Choose a tool from the recommendations above based on your specific need.
- Paste your data (JSON, code, text, etc.) into the input field.
- Get instant results — no waiting, no server uploads.
- Copy, download, or share your processed output.
Why Developers Trust Our Tools
- No Data Leaves Your Browser: All processing is client-side for complete privacy.
- Zero Setup: No installation, no accounts, no downloads needed.
- Works Offline: Once loaded, most tools work without an internet connection.
- Open and Transparent: What you see is what you get — simple, focused tools.