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. It's the perfect tool if you note passwords on paper — for instance a password manager's master password or a wallet's recovery hint.
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). 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. It's the perfect tool if you note passwords on paper — for instance a password manager's master password or a wallet's recovery hint. 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.
Generate a paper card/matrix to note your passwords safely.
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. It's the perfect tool if you note passwords on paper — for instance a password manager's master password or a wallet's recovery hint. 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.