Free online Punycode encoder — convert Unicode domain names and text to Punycode (IDN) encoding instantly in your browser. No data is stored. Adds xn-- prefixes to labels with non-ASCII characters per RFC 3492.
Free online Punycode encoder — convert Unicode domain names and text to Punycode (IDN) encoding instantly in your browser. No data is stored. Adds xn-- prefixes to labels with non-ASCII characters per RFC 3492.
Runs entirely in your browser. No data is sent to our servers.
Encode a domain with Unicode characters to Punycode
Base64 Encode
Free online Base64 encoder — convert text to Base64 format instantly in your browser. No data is stored. Supports UTF-8 text, optional URL-safe encoding, and handles multi-byte characters.
Base64 Decode
Free online Base64 decoder — convert Base64 encoded strings back to plain text instantly in your browser. No data is stored. Supports standard and URL-safe Base64, handles padding, and decodes UTF-8 multi-byte characters.
Base64URL Encode
Free online Base64URL encoder — encode text to URL-safe Base64 format instantly in your browser. No data is stored. Produces RFC 4648 output with -_ instead of +/ and no padding, ideal for JWTs and URL parameters.
Base64URL Decode
Free online Base64URL decoder — decode URL-safe Base64 encoded strings back to text instantly in your browser. No data is stored. Handles RFC 4648 format with -_ characters and missing padding.