Décodeur Base64

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About the Base64 Decoder

The Base64 Decoder reverses Base64-encoded strings into their original text or binary form. It works entirely in your browser.

How to use it

  1. Paste Base64 text. The decoded output appears below. Switch between text and binary mode as needed.

Common use cases

  • Decoding data URLs. Inspecting HTTP Basic Auth headers. Reading JWT segments.

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