Base64 Encode Decode

Online base64 encode online and decode converter for strings and files

How to Encode and Decode Base64

Learn how to encode base64 data effortlessly. Our tool allows you to encode string or encode file to base64 instantly, making it a great alternative to python base64 scripts.

  1. Enter the text or binary data you want to encode or decode.
  2. Select whether to encode to Base64 or decode from Base64.
  3. Click the action button to get the encoded or decoded result instantly.

Example

Input

Hello World

Encoded Output

SGVsbG8gV29ybGQ=

Decoded Output: Hello World

What is Base64?

Base64 is a scheme to encode to base64 or decode base64 strings. It's commonly used for base64 image data, URLs, and tokens in python base64 encode tasks.

  • Common in data URLs, tokens, and email attachments.
  • Not encryption; it's reversible encoding.
  • Adds about 33% size overhead compared to raw data.

When to use Base64

  • Embedding small images in HTML or CSS
  • Sending binary data through text-only systems
  • Inspecting tokens or payloads during debugging

Base64 FAQs

Is Base64 encryption?

No. Base64 only encodes data into text. Anyone can decode it, so do not treat it as encryption.

Why does my Base64 output end with '='?

The '=' characters are padding to make the output length divisible by four. This is normal.

Does this tool send my data to a server?

No. The encoding and decoding happen in your browser.