Base64 Encoder/Decoder

Encode and decode text using Base64 encoding. Supports URL-safe Base64 format.

Text to Encode

URL-safe Base64 (replaces + and /)

Base64 Output

SGVsbG8sIFdvcmxkIQ==

Input Length

Output Length

Size Ratio

153.8%

About Base64: Base64 encodes binary data into ASCII characters using 64 symbols (A-Z, a-z, 0-9, +, /). It increases size by ~33% but ensures safe text transmission.

💡

Help us improve!

How would you rate the Base64 Encoder/Decoder?

Powiązane Kalkulatory

URL Encoder

URL encoding

Hash Calculator

Generate hashes

JWT Decoder

Decode JWT tokens

Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

ðŸ“š

Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.