Base64 Encode/Decode
Encode and decode Base64 strings with exact precision (=== validation)
Mode: Encoding | Precision: Exact (===) | Tests: 25+ golden cases
Encode Mode
Base64 Information
Encoding: Converts binary data to ASCII text
Alphabet: A-Z, a-z, 0-9, +, /
Padding: Uses = characters for padding
Validation: Exact equality (===) checking
Common Examples
Encoding Examples
Simple Text
"hello" → "aGVsbG8="
Numbers
"12345" → "MTIzNDU="
Unicode
"你好" → "5L2g5aW9"
Use Cases
- • Email attachments (MIME)
- • Data URLs in HTML
- • API authentication tokens
- • Binary data transmission
- • Configuration file encoding
Validation Features
Input Validation
- • Empty string handling
- • Invalid Base64 character detection
- • Padding validation
- • Length validation
Output Guarantees
- • Round-trip consistency
- • Exact string equality (===)
- • Standard RFC 4648 compliance
- • Error-free encoding/decoding