Encoding & Decoding

Encode text or files to Base64 format for safe data transmission.

Decode Base64 encoded strings back to plain text or binary data.

Percent-encode and decode URLs and query string parameters.

Encode and decode HTML entities like &, <, >, and more.

Convert between hexadecimal, decimal, binary, and octal number systems.

Look up Unicode code points, search by character name, and convert between encodings.

Decode and inspect JWT tokens — header, payload, and signature — without verification.

Encode and decode data using Bitcoin Base58 and Base58Check encoding.

Convert numbers between binary, octal, decimal, hex, and any base from 2–36.

Convert files to Base64 data URLs and decode data URLs back to files.

Encode and decode data using RFC 4648 Base32 — used in TOTP secrets and DNSSEC.

Encode and decode data using Base62 — ideal for URL-safe short IDs.

Encode and decode data using Ascii85/Base85, as used in PDF and PostScript.

Convert text to Morse code and back using the international Morse alphabet.

Encode and decode text using the ROT13 and ROT47 substitution ciphers.

Convert internationalized domain names (IDN) to and from Punycode (ACE).

Encode and decode Quoted-Printable text as used in email MIME content.