Unlock Pro

Enter the license key from your Gumroad purchase to unlock batch exports, HD renders, theme packs, saved presets, and an ad-free experience. It's a one-time unlock — no subscription, no account, still 100% in your browser.

  • ✓ Batch many diagrams into one ZIP
  • ✓ HD 2× and 4× PNG renders
  • ✓ Theme packs — dark, blueprint, mono
  • ✓ Save and reload named diagram presets
  • ✓ Ad-free — and still no uploads, ever

Format: DIAG-PRO-XXXX-XXXXXXXX

Don't have a key yet?

Buy Diagram Tools Pro on Gumroad for a one-time $7 license key, delivered instantly to your inbox. Then paste it above.

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