CSS Unit Converter (px / rem / em / pt / %)
Convert between px, rem, em, pt, pc, vw/vh and percent using a root and base.
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.env to JSON
Parse a .env / dotenv file into a JSON object and convert JSON back into .env format, handling quotes, comments, and export prefixes.
Web & Dev
Accept-Language / Accept Parser
Parse and sort Accept-Language or Accept headers by quality value (q-factor).
Web & Dev
Asset Cache-Busting URL Builder
Appends a deterministic version/hash query param to a list of asset URLs.
Web & Dev
AsyncAPI Validator Preview
Validate common AsyncAPI structure and summarize channels, operations, messages, and servers.
Web & Dev