Password Card client-side ?
How to use Password CardA password card is a two-axis grid you print or save as an image, then keep with you (wallet, notebook). Each cell, at the intersection of a row letter and a column letter or digit, holds a few random characters. To recall a password you only memorize a starting cell and a reading direction: anyone who finds the card has no idea which path to follow, and you never wrote the password in clear text. Handy whenever you keep passwords on paper: a password manager's master password, a wallet's recovery phrase.
Three forms are available: the coordinate grid (the classic), a character substitution table (replace each character of your password with its equivalent), and a two-ring cipher disk. An optional seed lets you regenerate an identical card if you lose it, and a memo area helps you jot hints without revealing the secret. Everything is generated in your browser: no card is ever sent or stored on a server
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A password card is a two-axis grid you print or save as an image, then keep with you (wallet, notebook). Each cell, at the intersection of a row letter and a column letter or digit, holds a few random characters. To recall a password you only memorize a starting cell and a reading direction: anyone who finds the card has no idea which path to follow, and you never wrote the password in clear text. Handy whenever you keep passwords on paper: a password manager's master password, a wallet's recovery phrase. Three forms are available: the coordinate grid (the classic), a character substitution table (replace each character of your password with its equivalent), and a two-ring cipher disk. An optional seed lets you regenerate an identical card if you lose it, and a memo area helps you jot hints without revealing the secret. Everything is generated in your browser: no card is ever sent or stored on a server
A password card is a two-axis grid you print or save as an image, then keep with you (wallet, notebook)
How to use Password Card
A password card is a two-axis grid you print or save as an image, then keep with you (wallet, notebook). Each cell, at the intersection of a row letter and a column letter or digit, holds a few random characters. To recall a password you only memorize a starting cell and a reading direction: anyone who finds the card has no idea which path to follow, and you never wrote the password in clear text. Handy whenever you keep passwords on paper: a password manager's master password, a wallet's recovery phrase. Three forms are available: the coordinate grid (the classic), a character substitution table (replace each character of your password with its equivalent), and a two-ring cipher disk. An optional seed lets you regenerate an identical card if you lose it, and a memo area helps you jot hints without revealing the secret. Everything is generated in your browser: no card is ever sent or stored on a server
Frequently asked questions
How do I read a password off the card?
Pick a starting cell (say row G, column o) and a reading direction (right, down…) over a given length. You only memorize that path; the characters live on the card
Is it really safe?
Safer than writing the password in clear: someone who finds the card sees a grid of characters without knowing which path maps to which account. Security relies on keeping the reading path secret - never write it on the card
Can I reprint the same card if I lose it?
Yes, as long as you used a seed (a word or phrase). The same seed and settings regenerate an identical card. Without a seed the card is random and not reproducible: print it right away
Is the card sent over the Internet?
No. All generation happens in your browser, and both printing and PNG export are local. Nothing is transmitted