Lettered challenges players to fit letter tiles into a grid to reveal a hidden phrase.
Free
8 alternativesRegex Crossword
Regex Crossword challenges players to fill a grid using clues expressed as regular expressions.
About Regex Crossword
Regex Crossword presents grids where players fill hexes with character sequences to match the regular expressions listed around the edges. Clues use different formatting for satisfied, unsatisfied, and active states. A regex must be a full match, and empty cells are treated as spaces. Rules can be edited by double-clicking, and progress should be saved when refreshing or returning later. The site notes viewing in Google Chrome or Firefox.
Key features
- Fill hexes to match edge regular expressions
- Clues show separate formatting for satisfied and unsatisfied states
- Active clue is underlined
- Edit a rule by double-clicking and pressing Enter
- Requires full match with empty cells as spaces
- Progress should persist after refresh or return
Best for: People who want to practice regular expressions by solving puzzles.
Good for
- Progress should be saved when refreshing or returning later
- Provides a solution page for reference
Watch out for
- Author notes viewing in Google Chrome or Firefox
Regex Crossword at a glance
- Category
- Gaming › Browser Puzzle Games
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Regex Crossword alternatives
Tools and sites you could use instead, ranked by how closely they match.
Kakuro Puzzle offers daily, regular, and unlimited number crosswords, alongside rules and clue-sum instructions.
Solve Murdoku’s weekly murder mystery by placing suspects according to the clues in a Sudoku-style grid.
Murdle publishes a new murder mystery puzzle each day for players to solve through clues and deduction.
Actorle uses filmography clues in a daily challenge where players identify a mystery actor.
Actorle TV is a daily guessing game where players identify a mystery actor from clues about TV series, genres, years, and ratings.
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Regex Crossword FAQ
What do I need to do to solve the puzzle?
Fill in the hexes with character sequences so they match the regular expressions listed around the edges.
How are entries matched?
The regex must be a full match, and empty cells are treated as spaces.
Will my work be saved if I leave?
Work should be saved if you refresh the page or come back later.
Is something wrong or out of date?
Tell us and an editor will check it.
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