Crossword Generator

A tool for teachers and puzzle creators to generate customizable crossword grids from word lists, with clues and grid data ready for printing or digitization.

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About This Tool

The Crossword Generator creates crossword grids from a word list for printable or digital use. It handles word placement, orientation, and numbering, producing a data-rich grid and corresponding clues. Users supply grid_size, a word list, optional clues or a theme, and receive a structured grid suitable for printing or import into puzzle apps. Conceptually, the tool treats placement as a constraint satisfaction problem and uses backtracking to fit words while maximizing cross-letters. It outputs a 2D grid, a numbered clue set, and a portable data object for downstream workflows. The approach supports educators, content creators, and learners who need repeatable puzzle content with consistent formatting and easy export. Unique value lies in reproducible layouts, configurable constraints, and clean data exports for automated workflows. Core features include automated word placement, optional automatic clue placeholders, theme support, and multiple export formats. Use cases include classroom worksheets, online quizzes, vocabulary practice, and exam review tasks.

How to Use

Provide inputs: grid_size, word_list, and optional clues or theme.
Configure constraints: difficulty, allow_reuse, and style presets.
Run generation to compute grid and clues.
Review outputs: grid data, numbered clues, and export options.
Export to JSON or PUZ-like formats for downstream use.

How to use crossword generator online

Frequently Asked Questions

Find Quick Answers

What happens if there isn't enough space for all words?
The generator attempts alternate placements and may drop or trim words based on the configured limits. It returns a best-effort partial grid with a status flag indicating space constraints.
Can clues be generated automatically?
Yes, optional automatic clue generation can produce simple placeholders or synonym-based hints. If disabled, users provide their own clues for each entry.
What formats are available for export?
Exports include a JSON grid+clues object and a PUZ-like structure suitable for importing into puzzle apps or learning platforms.
Can I reuse words across multiple generated grids?
Reusability is configurable via the allow_reuse setting. Disallowing reuse ensures unique placements, while enabling reuse may produce more compact grids.

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