HelperCrate

CSS Unit Converter

Convert CSS lengths between px, rem, em and vw using your own base sizes.

Your files never leave your device. Everything runs in your browser.

Related tools

Base64 Encoder

Encode and decode text or files to and from Base64.

URL Encoder

Percent-encode or decode URLs and query strings safely.

JSON Formatter

Beautify, minify and validate JSON with clear error messages.

Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text.