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Base64 encoder decoder online
Encode and decode Base64 text with UTF-8 support, convert binary files, and download decoded bytes. Everything runs in your browser.
Base64 encoder Local processing
Unicode support
Binary file support
Live conversion
How to Use
- 1
Choose Encode or Decode.
- 2
Type text, paste Base64, or select a binary file to encode.
- 3
Copy the result or download the decoded bytes.
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is reversible encoding and provides no secrecy.
Can I decode an image?
Yes. Paste the Base64 bytes, optionally including the data URL prefix, then download the decoded binary file.
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