Support
Answers to common questions. Can't find what you need? Reach out directly.
Email support
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Does the JWT Decoder verify my token's signature?
No, and it never will by design. It decodes the header and payload client-side so you can inspect the claims, but it does not check the signature against a secret or public key. Don't treat a successful decode as proof a token is authentic.
Does Cast send my data anywhere?
No. Cast makes no network calls at all. Every tool — JSON, JWT, Base64, regex, hashing, everything — runs entirely on your Mac, sandboxed. See the Privacy Policy for details.
How do I switch between light and dark mode?
Click the sun/moon icon in the window's toolbar. It overrides your system appearance for Cast specifically, and your choice is remembered the next time you open the app.
I dropped a large file on Hash Generator and nothing happened yet.
Large files hash in the background so the app stays responsive — you'll see a brief "Hashing…" indicator on the drop zone. Give it a moment; all four hashes (MD5, SHA-1, SHA-256, SHA-512) appear together once it's done.
Where can I find instructions for a specific tool?
Click the small "?" icon next to any tool's title for a short explanation of what it does and how to use it. The same content is also available from the Cast menu → Cast Help.
Where are my Pomodoro settings stored?
Locally on your Mac, using Apple's standard preferences system. They're not backed up anywhere or synced between devices — the session counter resets each time you relaunch the app, by design.