DEVELOPER TOOLS / FREE ONLINE TOOL

Base64URL Encoder Decoder

Convert UTF-8 strings to and from URL-safe Base64 format. Works offline once the page is loaded.

✓ Browser only✓ No signup✓ Copy or download

How to use Base64URL Encoder Decoder

  1. Enter Unicode text or Base64URL input.
  2. Choose Encode or Decode.
  3. Run the conversion and copy the result.

Limitations and useful tips

Base64URL is an encoding, not encryption or a secure way to hide confidential data.

How to use Base64URL Encoder Decoder

  1. Enter Unicode text or Base64URL input.
  2. Choose Encode or Decode.
  3. Run the conversion and copy the result.

What to know before you start

Base64URL is an encoding, not encryption or a secure way to hide confidential data.