About the Base64 Encoder & Decoder
The Base64 Encoder & Decoder converts text to Base64 and back in an instant. It is a handy developer tool for encoding data, debugging APIs and working with tokens — and it runs entirely in your browser, so your data stays private.
How to use the Base64 Encoder & Decoder
- Paste your text or Base64 string.
- Click Encode to convert to Base64, or Decode to convert back.
- Copy the result from the output box.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a way of representing binary or text data using a set of 64 printable characters, often used in data transfer and APIs.
Does it support Unicode and emoji?
Yes, the encoder handles UTF-8 text including accents and emoji correctly.
Is my data sent to a server?
No, encoding and decoding happen entirely in your browser — nothing is uploaded.
Is the Base64 tool free?
Yes, it is free with no sign-up.