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Lock and locker code generator

Turn a date, a name or a word into lock codes with the question and the hint already written. Every code is one click from a real lock you can share.

What this tool does: A lock code generator takes something meaningful, a date or a word, and returns the codes a virtual lock can carry: the date as four or six digits, the word as a written answer, as A1Z26 numbers or as phone keypad digits. Each comes with the line players read, a hint written for the occasion, and opens the builder on that exact step.
What is the lock for?

Pick a date or type a word above and your codes appear here, each one ready to become a lock.

Everything runs in your browser. Your date and word are never sent to a server; the lock is only created when you publish it.

Make your own lock to share

Hide a message, a photo or a reward behind a code, then send it by link or QR code. Ready in two minutes,and your players need no app.

Create my lock

Five ways to hide a word in a number

A numeric pad is the fastest thing to type on a phone, but a number on its own carries no story. The trick is to make the digits mean the word: A1Z26 turns RAVEN into 18122514, phone keypad digits turn HELP into 4357, a date turns "the day we met" into 1406. The generator above writes the matching hint so the player knows which rule to apply.

For a trail of several locks, vary the rule from step to step: a date first, a keypad word next, a plain written answer last. Players learn the rules as they go and the trail stays fresh. The clue generator gives you riddles whose answers already fit a lock.

Frequently asked questions

What makes a good lock code?
A code players can reach with one good clue, but not on the first guess. Dates work best: the year on a portrait, a due date, the day you met. The person cracking it feels clever rather than locked out.
Number or word?
A number when the meaning is a date or a count, a word when the meaning is a place, a nickname or an answer to a question. Numeric locks are faster to enter on a phone, which matters when a group opens the same link at once. Word locks carry more meaning.
What is A1Z26?
A cipher where each letter becomes its position in the alphabet: A is 1, B is 2, Z is 26. It lets a numeric lock carry a word, and it is one of the first ciphers escape room players recognise.
What are phone keypad digits?
The letters printed on an old phone keypad: ABC on 2, DEF on 3, up to WXYZ on 9. "HELP" becomes 4357. It is a satisfying clue for a numeric lock because most people know the mapping once they see one key.
How do I turn a code into something I can share?
Press "Create this lock" next to any code. The builder opens on that lock, with the format, the answer, the question players read, the hint and a sample reveal already filled in. The hint is set to show itself after three wrong answers, as it is everywhere else. Add what you want to hide, publish, and you get a link and a QR code.
Is my date or word stored?
No. The codes are generated in your browser and nothing is sent to a server until you publish a lock from the builder, and even then the answer is stored as a hash.

Free tools

Lock Simulator

Set a combination, a word or a sequence, write the question and the hint, and try the lock as a player would. Publish it in one click.

Escape Room Clue Generator

Riddles with answers that fit a lock, by theme and difficulty, question and hint included. Lock any clue in one click.

Cipher Maker

Encode a message in Caesar, Morse, A1Z26, Atbash, Reverse or ROT13, then lock the decoded answer with its key as the hint.