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Base64 Encoder / Decoder

Encode and decode Base64 for text (UTF-8 safe) and files, including data URLs.

Files never leave your device Instant results 100% free No sign-up

How to use the Base64 Encoder / Decoder

  1. Paste your input or type directly in the editor.
  2. Pick the operation — results appear in real time.
  3. Copy the output to your clipboard or download it.

Private & secure

Processing happens locally with JavaScript, Canvas and Web APIs.
No uploads, no storage, no account. Close the tab and it is gone.
Works on desktop and mobile in any modern browser.