FreeConvert
Developer Tools

Free Developer Tools

Base64 Encoder Decoder

Encode and decode Base64 text online free with UTF-8 support. Convert text to Base64 or Base64 back to readable text locally.

Client-side

Output

RnJlZUNvbnZlcnQgYnJvd3NlciB0b29scw==

Developer Tools

About Base64 Encoder Decoder

Encode and decode Base64 text online free with UTF-8 support. Convert text to Base64 or Base64 back to readable text locally. The work happens in your browser, so your input stays on your device while you prepare the result.

Encoding small text snippets for development, testing and data transfer.

Decoding Base64 strings from APIs, headers or configuration values.

Practical notes

  • Base64 is encoding, not encryption.
  • Decoded text may be unreadable if the Base64 data represents binary content.

Related tools

Common questions

Does this tool upload my data?

No. The tool runs in your browser and keeps the selected content on your device.

Is this tool free?

Yes. It is free to use in the browser and does not require an account.