Base64 Decoder

Paste a Base64 string to reveal the original text. Handles UTF-8 so decoded text displays correctly.

Base64 to decode

How to use

Paste the Base64 string.
The decoded text appears automatically.
Copy it with the Copy button.

Examples

Simple decode

Input: SGVsbG8sIFdvcmxkIQ==

Output: Hello, World!

Frequently asked questions

Why do I get an error on some inputs?

The input is probably not valid Base64 (wrong characters, wrong padding, or it is Base64URL with - and _ instead of + and /).

Can I decode files?

This tool is for text. Decoding binary data like images may produce unreadable output.

Related tools

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Encode text to Base64, including full Unicode support.

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