Base64 Converter Tool

Encode text to Base64 or decode Base64 back to text. Perfect for data transmission, encoding sensitive information, web development, and working with APIs that require Base64 encoding.

Enter Text to Encode

Enter text to convert to Base64 encoding

Characters: 0 Bytes: 0

Quick Test Samples:

Conversion Options

URL Safe Encoding (Replace +/ with -_) Trim Padding (=) (Remove = characters) Add Line Breaks (76 chars per line) UTF-8 Encoding (Support all characters)

Conversion Results

Mode

Encoding

Input Size

0 characters

Output Size

0 characters

Time

0ms

Base64 Encoded Result

Base64 Character Map

About Base64 Encoding

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored and transferred over media designed to deal with text.

Common Uses

Email attachments (MIME)
Embedding images in HTML/CSS (data URIs)
API authentication headers
Storing complex data in URLs
Encoding binary data in JSON/XML

Important Notes

Base64 increases data size by approximately 33%
Not encryption - just encoding (not secure)
URL-safe version replaces +/ with -_
Padding (=) indicates the end of data