Base64 Tools
Encode and decode Base64 strings for data transmission
Base64 Operations
Result
No result yet
Choose an operation and enter text to see the Base64 result
About Base64 Encoding
Standard Base64
Uses characters A-Z, a-z, 0-9, +, / with = padding
URL-Safe Base64
Replaces + with - and / with _ for URL compatibility
Common Uses
Email attachments, data URLs, API tokens, binary data
Size Increase
Base64 encoding increases size by approximately 33%