Base64 Encoder/Decoder
Encode and decode text to/from Base64 format
Pentest Tool · v2.5 (Secure)
RFC 4648
Standard
Base64 specification
10MB
Max Input
Text input limit
4
Charsets
UTF-8, ASCII, etc.
3
Options
URL-safe, padding
Base64 Encoder/Decoder Pro
Convert data to and from Base64 format with advanced options
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. Commonly used for data transfer in emails, web APIs, and embedded resources.
Common Uses
•
Email attachments - MIME encoding
•
Web APIs - Data transmission
•
JWT tokens - Header and payload
Options Explained
•
URL Safe - Replaces +/ with -_ for URLs
•
Remove padding - Strips trailing = characters
•
Line breaks - Adds line breaks every 76 chars
Examples
Text Encoding
Input:
Hello World
Output:
SGVsbG8gV29ybGQ=
Text Decoding
Input:
SGVsbG8gV29ybGQ=
Output:
Hello World
URL Safe Base64
Standard:
a+b/c==
URL Safe:
a-b_c