VyomaStack
Developer

Free Base64 Encoder & Decoder Online

Encode text to Base64 or decode Base64 strings instantly. Full UTF-8 support. Swap, copy, and clear — all in your browser.

Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to plain text. Supports UTF-8. Runs in your browser.

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Frequently Asked Questions

What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII text. It's commonly used for embedding data in JSON, XML, email, and URLs.
Does this support UTF-8?
Yes. The encoder and decoder handle multi-byte UTF-8 characters correctly, including emoji and non-Latin scripts.
Is my data sent to a server?
No. All encoding and decoding runs in your browser. Your data never leaves your device.
Can I decode Base64 as well as encode?
Yes. Switch to Decode mode or use the Swap button to move the output back to input and decode it.