Base64 Encoder & Decoder
Encode or decode text to Base64 ASCII strings with full multi-byte Unicode UTF-8 handling.
How It Works
- Uses TextEncoder and TextDecoder to handle emojis and special characters safely.
Formula & Technical Standard
Maps 3 bytes (24 bits) into 4 characters (6 bits each).
Practical Example
Unicode Encoding
Input: TechTools 🚀
Output: VGVjaFRvb2xzIPCfmIA=
Handles multi-byte UTF-8.
Frequently Asked Questions
Is Base64 encryption?
No. It is a text encoding format, not an encryption cipher. It provides zero security.
Related Tools
security
URL Encoder & Decoder
Convert special characters to percent-encoded hex sequences (%20) and decode URI strings.
security
Cryptographic Hash Generator
Compute secure cryptographic message digests client-side using native window.crypto.subtle and pure JS MD5 with legacy safety indicators.
securityPopular
Secure Password Generator
Generate cryptographically secure passwords locally via crypto.getRandomValues() with accurate real-time entropy scoring and zero server transmissions.