Base64 Encode/Decode

Base64 encode and decode online free. Convert text to Base64 or back in your browser — private developer tool.

About Base64 Encode/Decode

Encode strings for data URLs, tokens, or debugging. Base64 on TheToolss encodes and decodes text instantly in your browser with no account.

How to use Base64 Encode/Decode

  1. Enter the text you want to convert.
  2. Choose encode or decode.
  3. Copy the Base64 or plain-text result.

Frequently asked questions

Is Base64 conversion free?
Yes. Encode and decode Base64 free on TheToolss.
Can I decode Base64 too?
Yes. Switch between encode and decode modes.
Is my text uploaded?
No. Conversion runs locally in your browser.