About Devkult

Devkult is a collection of 26 developer tools, 34 converters, and libraries of ready-made cron schedules and regex patterns — the small, everyday utilities that usually mean hunting through ad-covered sites or writing a throwaway script.

The rule behind every tool: your data stays in your browser. Formatting, encoding, hashing, diffing, and converting all run as client-side JavaScript. The only exceptions are the network tools (DNS, WHOIS, HTTP status checks), which by nature query external services — and they only see the domain or URL you ask about.

No accounts, no paywalls, no upsells. The site is free to use and supported by nothing — it exists because these utilities should be fast and pleasant to use.

Found a bug, want a tool added, or have a pattern the library is missing? Write to support@devkult.com.