Encode/Decode

Convert internationalized domain names (IDN) between Unicode and Punycode effortlessly with our free online Punycode Converter. Fast, accurate, and bulk-ready.

Convert Base64 strings or Data URIs into viewable and downloadable images instantly with our free online Base64 to Image converter tool.

Generate secure HMAC cryptographic signatures online instantly. Support SHA-256, SHA-512, MD5, custom secret keys, and multiple output formats.