Custom Crossword Puzzle Creator (Missing Letters)

Create a Missing-Letters Crossword for Any Topic

This custom crossword maker turns your own word list and clues into an interactive missing-letters puzzle. It is useful when a standard crossword is too difficult, too easy, or unrelated to the vocabulary you want learners to practise. Add spelling words, lesson terms, names, places, definitions, or themed answers and the generator will arrange them into a connected puzzle whenever possible.

How to Build Your Puzzle

1. Select Let's get started and enter an optional puzzle name and short instruction.
2. Replace the example answers with your own words. Keep answers concise and use letters only for the cleanest layout.
3. Write a clear clue beside each answer. A clue can be a definition, translation, sentence prompt, fact, or classroom question.
4. Use Add for another row, Remove for one unwanted entry, or Remove All when you want a completely fresh list.
5. Select Generate crossword to create the grid. If the first arrangement is not ideal, choose Generate Different Crossword Puzzle.
6. Copy the shareable URL and send it to the people who should solve the activity.

Solving and Checking Answers

Players select a white square and type one letter at a time. Arrow keys move around the grid, while Tab moves to the next answer. The Across and Down clue lists remain visible beside the puzzle on wider screens and move below it on smaller devices. When the puzzle is complete, the Check button marks incorrect letters so they can be corrected. A success message appears when every entered answer is right.

Ideas for Teachers, Parents, and Groups

Create weekly spelling reviews, foreign-language vocabulary practice, science terminology exercises, book-character quizzes, geography challenges, holiday games, or onboarding activities. Younger learners can work with short familiar answers and direct picture-like clues, while advanced learners can use longer terms and more indirect prompts. Generating a different arrangement from the same list also lets you reuse the material without presenting an identical grid.

Privacy and Link Length

The creator packages the puzzle details into the share URL rather than requiring a database account. That makes sharing quick, but it also means long word lists create longer links. Avoid putting private or sensitive information in puzzle names, answers, or clues, and keep the entire copied URL intact when sending it through email, chat, or a learning platform.