Base64 Encoder and Decoder Online

The Base64 Encoder and Decoder allows you to translate plain text strings into Base64 format or decode binary-to-text data back into a readable string — essential for handling data in web APIs, email attachments, or data URIs. It provides instant results with zero lag, ensuring your development workflow stays fast and efficient. This tool is free, secure, and requires no signup.

1. 1

   Choose whether to Encode or Decode using the toggle at the top.

2. 2

   Paste your text or Base64 string into the input field.

3. 3

   Your result appears instantly in the output — copy it with one click.

4. 4

   Paste the text or base64 string you want to convert.

5. 5

   Click Encode to create a base64 string or Decode to revert to text.

6. 6

   Copy the result to your clipboard or download it as a text file.