Base64エンコード/デコード

Encode plain text to Base64 or decode Base64 back to text. Base64 is often used to embed images in CSS or transfer data in APIs. Fluranto does all encoding and decoding in your browser so sensitive tokens and payloads stay private.

無料 · 制限なし · ブラウザで処理

使い方

  1. 1Select "Encode" or "Decode" mode.
  2. 2Paste your text or Base64 string into the input box.
  3. 3The result appears instantly; copy as needed.

よくある質問

Is Base64 an encryption method?
No. Base64 is encoding only. It does not secure data; it just changes the format for transport.
Are my credentials logged?
No. Encoding and decoding happen in your browser's memory.
Can I encode large blocks of text?
Yes. The local processor handles large strings.
What is URL-safe Base64?
URL-safe mode replaces + with - and / with _ so the result can be used in URLs without encoding. Use it for tokens or data in query strings.
Can I encode a file to Base64?
Yes. Use the "Encode file" button to select a file; the tool will show its Base64 representation so you can copy or use it in APIs or data URLs.

開発者・データツール: フォーマット、検証、エンコード、変換。

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