UtilitySuite

Free online developer tools

A compact desk of developer utilities for quick debugging, formatting, encoding, hashing, scheduling and domain checks. Most text tools run locally in your browser; lookup tools fetch public network data.

All tools are free, browser-based, and designed for quick use without account creation.

JSON FormatterFormat, validate and minify JSON.Regex TesterTest JavaScript regular expressions with live highlighting.UUID GeneratorGenerate v4 UUIDs in bulk.JWT DecoderDecode JSON Web Tokens locally.Base64 Encoder / DecoderEncode and decode Base64 strings and files.URL Encoder / DecoderPercent-encode and decode URLs.Hash GeneratorGenerate MD5, SHA and HMAC hashes.Cron Expression GeneratorBuild and explain cron expressions.DNS LookupResolve public DNS records.WHOIS LookupLook up domain registration information.SSL CheckerCheck TLS certificates and HTTPS configuration.Password GeneratorCreate strong random passwords and passphrases.

Why this collection exists

Search engines often surface one tool at a time. This page groups related UtilitySuite tools by real tasks so visitors can find the next useful calculator, converter or generator without bouncing back to search.

Frequently asked questions

Do these developer tools require signup?

No. UtilitySuite tools are free and do not require an account.

Which tools are client-side?

Text, encoding, hashing and generation tools are designed to run in the browser. DNS, WHOIS and SSL tools query external public lookup services.

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