Base64 Encoder/Decoder

Convert text and files to/from Base64 encoding instantly

Easily encode or decode text and files to and from Base64 format. Perfect for developers working with data serialization, file uploads, or encoding binary data for web applications.

Text and file support
Instant Base64 encoding and decoding
10MB file size limit
No registration required
Completely free
Works in your browser

How to Use

  1. Choose whether to encode or decode using the mode selector
  2. Select your input type: text or file
  3. Enter your text or select a file
  4. Click Encode or Decode to process your data
  5. Copy or download the result as needed

Frequently Asked Questions

What is Base64 encoding?

Base64 encoding is a way to represent binary data (like images or files) as ASCII text, making it safe for transmission over text-based protocols.

Is my data sent to a server?

No, all encoding and decoding happens in your browser. Your data never leaves your device.

What is the maximum file size supported?

You can encode or decode files up to 10MB in size.

Can I decode Base64 back to the original file?

Yes, you can decode Base64-encoded data back to its original text or file format.