Crossword Labs is a free online crossword puzzle maker designed to make creating, sharing, printing, and solving puzzles straightforward. Users can build a crossword by entering answers and clues, add a title, and optionally protect the answer key with a passcode. Once created, puzzles can be shared through a link, solved online, or embedded on a website. The service also supports printing and exporting puzzles as PDFs or Microsoft Word documents, downloading them as images, and exporting them to SVG for further customization.

Alongside its creation tools, Crossword Labs offers a searchable collection of ready-made puzzles on a variety of subjects, with sample crosswords covering topics such as planets, weather, and animals. Puzzles can have public, hidden, or private visibility settings, with access and answer-key permissions varying by setting. Crossword Labs emphasizes a quick, simple experience that works on tablets and phones. It says the service requires no registration and includes no advertisements or watermarks, making it easy for anyone to create, share, and enjoy crossword puzzles online.