100% Free · No limits

Encoder
& Decoder

Base64, URL encoding, HTML entities, JWT decoding, and cryptographic hashing — all in one tool. Client-side, nothing sent to a server.

Mode:
INPUT
OUTPUT
Output will appear here
5-in-1 Encoder
Base64, URL encoding, HTML entities, JWT decoding, and cryptographic hashing in one unified tool.
Bidirectional
Encode and decode with a single toggle. Instant results for Base64, URL, and HTML entity conversions.
100% Client-Side
Your data never leaves your browser. No server calls, no logging, no tracking. Completely private.