Base64 Encoder Decoder
Convert text or files to Base64 and back again.
Encode and decode Base64 strings.
How to use
- Paste text or upload a small file to encode.
- Switch to decode mode and paste Base64 to reverse.
- Copy the encoded or decoded output.
- Use the result in APIs, data URIs, or debugging.
About Base64 Encoder Decoder
Encode and decode Base64 strings.
Runs in your browser — your files and input stay on your device.
Frequently asked questions
Is processing local?
Yes.
Can I encode files?
Small files can often be encoded to Base64 in the browser.
What about Unicode text?
UTF-8 text is supported for encode and decode operations.