Privacy

Your data stays in your browser.

cmdblock is local-first. Your progress, saved commands, streaks, reviews, and account details live in your browser's own storage on your device — not on our servers. We don't have servers holding your data to leak.

No tracking. No analytics scripts, no ad pixels, no cookies for tracking.
No emails sent. An email on your account is just a label on this device; nothing is mailed to it.
Your data is portable. Export everything as JSON any time from your profile — and Delete account wipes it completely.
Clearing browser data clears cmdblock too. That's the honest trade of local-first.

If we ever add optional cloud sync, it will be opt-in, clearly labeled, and this page will say exactly what changes. Questions? hi@cmdblock.org.

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Last updated July 12, 2026 · cmdblock is not affiliated with Mojang or Microsoft.