Mosaic Builder
Turn any image into an interlocking jigsaw that unlocks a geocache reveal.
Sign in to save this cache to your account
Free, just a username and passphrase, no email. Caches you build show up in My Caches so you can reopen and edit them without hunting for the edit link, and watch plays and wins. The same account syncs My Puzzle Texts across devices and manages your short links.
Signed in
Caches you build here are saved to your account, so you can reopen and edit them in My Caches without the edit link.
Play your own cache before you publish it
Settings that look fair in this form can be brutal, or trivial, in the field. Finish the game yourself, start to end, on the kind of device your finders will use, and check that the difficulty, timers, hints, wording, and the final reveal all behave the way you intended. Every cache you create here comes with a play link and an edit link, so you can test it, tune it, and test it again before anyone else sees it.
Build an interlocking image puzzle for a geocache. Finders can zoom, spread pieces around, and join matching edges. Joined pieces move as one cluster. The final coordinates or keyword stay on the server until the puzzle is connected through server-confirmed joins.
Save this link. Without its key, an anonymous cache cannot be edited or deleted.
Your cache
Puzzle image
Upload a picture from this device, or paste a direct JPG, PNG, GIF or WebP URL. Big photos are shrunk before they are stored.
The board takes the shape of your picture, so nothing is cut off. Finders see it scaled to their screen and can zoom at any size.