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.

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

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