DevUtils

DevUtils bundles the pile of converter and formatter websites every developer keeps bookmarked into a single app that runs entirely offline. Paste or copy something and it guesses what you've got — a JWT, a Unix timestamp, a URL, a blob of JSON — and opens the matching tool. There are over fifty: JSON/SQL/XML formatting, base64 and URL encoding, hash and UUID generation, a regex tester, JSON↔YAML↔CSV, cURL-to-code, text diff, case conversion, cron parsing, and more.

Why it makes the list

The privacy angle is real: you can decode a production JWT or format a payload with customer data without it ever leaving your machine. And it's a proper native app — instant launch, keyboard-driven, with Alfred and Raycast integration — rather than a browser tab you keep alive. One purchase, no subscription.

Standout features

• 50+ tools for formatting, encoding, generating, and inspecting

• Clipboard detection that opens the right tool automatically

• Fully offline — nothing is sent anywhere

• Alfred and Raycast workflows for triggering tools by keyword

• Native and fast, with a global hotkey

Pricing

Free trial, then a one-time license with a year of updates (keep using the version you paid for after that).