BlindCard is now open source & free

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Your ears lie to you all the time — brand names, prices, and expectations colour what you hear. BlindCard removes that bias with poker card-style blind listening tests, and it's now completely free and open source.

Hear the truth, not the brand

Load your candidates, hide their labels, and compare them blind. Rate them, guess which is which, or quiz yourself. When the names come off, the best-sounding option is the one that wins — not the most expensive one.

Free and open

• Randomized A/B comparisons that eliminate bias
• Rate, guess, and quiz modes
• Completely free — no licence, no catch

Download it and start trusting your ears again.