Base64 Encoder

Developer Tool Featured

Encode text, files, and images to Base64 format instantly. Supports multiple input types and encoding options. Perfect for data transmission and embedding.

Encoding Options

Text Input

0 characters

Base64 Output

Enter text, upload file, or provide URL to encode to Base64

About Base64

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format.

Common Uses:
  • Embed images in HTML/CSS (data URIs)
  • Encode binary data for JSON/XML transmission
  • Store complex data in databases
  • Email attachments (MIME)
  • HTTP Basic Authentication
Encoding Process:
  1. Convert input to binary
  2. Group into 6-bit chunks
  3. Map each chunk to Base64 character
  4. Add padding with = if needed

Use Cases

  • Embed images in HTML/CSS files
  • Encode API credentials
  • Store binary data in JSON
  • Email attachment encoding

Advantages

  • ASCII-only characters
  • Safe for text-based protocols
  • No data corruption
  • Widely supported

Limitations

  • 33% size increase
  • Not for encryption
  • CPU intensive for large files
  • Not human-readable