Pick the parts you want in the phrase — an adjective, a noun, maybe a verb. The order you tap is the order they appear, and the chips can be tapped multiple times for two adjectives or two nouns.
One word is picked from each chosen slot using a cryptographically secure random generator. Spelling is converted to your selected dialect before the words leave the server.
An AI welds those raw words into the shortest possible vivid phrase, adding only articles, pronouns, prepositions, and any number you asked for. The output is validated to make sure it doesn't invent extra nouns.
Once you find a phrase you love, an AI generates a unique illustration of it. Your brain stores images far more reliably than text.
Cognitive scientists call it the picture superiority effect. Read a word and you have roughly a 10% chance of recalling it three days later. See an image and that jumps to 65%. By pairing a passphrase with a matching illustration you engage two memory systems at once: verbal and visual. This is dual coding theory, first proposed by Allan Paivio in 1971 and one of the most replicated findings in memory research.
"Cromwell's first carving" is almost impossible to forget once you've seen a cartoon of it happening. Your brain stores a scene, a story, a moment. The words are just labels for something you can already picture.
Password strength is measured in bits of entropy: how many guesses an attacker would need if they knew exactly how the password was generated. Each bit doubles the difficulty.
Passy Pie pulls from word lists totalling 10,000+ entries across seven categories: 3,069 nouns, 2,754 verbs, 2,277 adjectives, 721 adverbs, 465 places, 438 characters, 276 colours. Each slot you add to the recipe pulls from one of these lists at random; structural choices the AI then makes (article, preposition, conjugation, plural form, where the number lands) add another 10 to 15 bits on top.
| Password | Entropy | Verdict |
|---|---|---|
| Password1 | ~10 bits | Cracked instantly |
| Fluffy2019! | ~18 bits | Seconds |
| A-messy-box | ~13 bits | Casual: hours |
| Marrakech-inspires-her | ~27 bits | Good: hours to days |
| Cromwell's-1st-carving | ~42 bits | Strong: weeks to months |
| Tiny-Zeus-juggles-cacti-wildly | ~55 bits | Very strong: years |
Each slot you add roughly doubles the work an attacker has to do. By the time you're at four or five slots with a number, you're well into "warm side of the heat death of the universe" territory. And critically, you can still actually remember it.
Passy Pie is designed so that nobody, including us, ever knows your password.