Densa Deck Pro

As of April 2026, Moxfield put their public API behind Cloudflare bot detection, which blocks all non-browser clients regardless of User-Agent. The workaround is built into Densa Deck already: open the deck on moxfield.com, click More → Export → Text, copy the decklist, and paste it into the decklist text box above the Import from URL button. Analysis runs on the pasted list identically to a URL import. Archidekt URLs (archidekt.com/decks/...) continue to work as direct imports.

Your Stripe receipt (the email Stripe sent after checkout) contains a link back to the receipt page. The license key is deterministically derived from your Stripe session ID, so if you can get to the success page URL from your browser history OR Stripe receipt, the same key re-appears. If neither of those works, email admin@densanon.com with your Stripe receipt and we'll resend it within 48 hours.

Yes. Your license key is the same on every machine — there's no per-device lockout and no seat limit. Install Densa Deck on your desktop, laptop, and anywhere else you'd like to use it. We trust you not to share the key publicly.

The app checks for new versions when it launches and shows a banner if one's available. Click the banner to go to the download page. Extract the new ZIP to the same folder (replacing the old files) — your card database, saved decks, coach sessions, and license key stay intact (they live in %USERPROFILE%\.densa-deck\, outside the app folder).

All sales are final. Densa Deck is a one-time digital purchase — once your license key is delivered, the app runs offline on your machine indefinitely, so we can't meaningfully "take it back." The three free browser tools on this site (hypergeometric calculator, mana curve analyzer, staples checker) and the complete feature list above are meant to give you a clear picture before you commit.

One exception: if the app genuinely doesn't run on your machine (crashes on first launch, fails to install the card database after repeated retries, or a Windows version we advertised support for doesn't work), email admin@densanon.com. We'll work through the problem with you first — we'd much rather fix it than refund — and if it genuinely can't be made to work, we'll issue a refund at our discretion.

Primary focus: Commander / EDH (100-card singleton). Also works for Modern, Legacy, Vintage, Standard, Pioneer, and Pauper — the static analysis and goldfish engines are format-aware, and the staples checker has a Commander staples list built in. Format-specific features (bans, legality) respect each format's rules.

Yes. The binary isn't yet signed with a paid code-signing certificate (those cost $120–$700/year; we're adding one once sales justify it). Windows treats any unsigned app as suspicious by default. Click More info → Run anyway to proceed. You can verify the file's SHA-256 hash against the value published on the GitHub release page if you want extra assurance.

If you used the installer (Densa-Deck-Setup-*.exe), uninstall from Settings → Apps → Densa Deck → Uninstall like any normal Windows app. If you used the portable ZIP, just delete the densa-deck\ folder you extracted. Either way, to also wipe your card database, saved decks, and license key, delete %USERPROFILE%\.densa-deck\. That's everything Densa Deck ever wrote to your machine.

No. Densa Deck is an independent tool built by Densanon LLC. It's not affiliated with, endorsed by, or sponsored by Wizards of the Coast LLC. All card data is fetched from Scryfall, which publishes it under agreement with Wizards. No card images are hosted by us — we hotlink to Scryfall for any image display.

Email admin@densanon.com — include your Stripe receipt (or order ID) if it's a license issue, and your Windows version + a short description of what you tried if it's an install issue. Response within 48 hours.