Word game tools built for precision.
LexiLab is a free toolkit for word nerds and game lovers. It gives you fast, precise tools to find the edge in your favourite word games – whether that is an information-theory-based Wordle opener, every valid Scrabble word from your rack, or the anagram you know must be hiding in a jumble of letters.
The tools
Four tools, each built around the best available algorithm and dictionary for the job.
Anagram Generator
Finds every valid word combination from any set of letters, ranked by how common the words are. Supports eight languages: English, French, German, Spanish, Italian, Swedish, Danish, and Norwegian.
Open tool →Scrabble Word Finder
Finds every valid Scrabble word from your rack, scored by face value and sorted your way. Supports both North American (NWL23) and international (Collins CSW21) dictionaries. Handles blank tiles and board-pattern constraints.
Open tool →Wordle Solver
Uses information theory to find the guess that narrows the field the fastest at every stage of the game. Enter your guesses and the color feedback; the solver ranks the mathematically optimal next words by expected information gain.
Open tool →Crossword Helper
Pattern-based word finder for crossword solvers. Fill in the letters you know, and it instantly shows every word that fits – ranked by how commonly the words appear in real usage. Handles multi-word answers via black-square tiles. Searches a database of over 394,000 words.
Open tool →How LexiLab works
Every tool runs entirely in your browser – there is no server processing your letters, no account to create, and no data sent anywhere. The dictionaries are downloaded once and cached; after that, searches are instant even offline.
The Anagram Generator and Scrabble Word Finder use Web Workers so the computation never blocks the page. The Wordle Solver does its entropy calculations synchronously – the math is fast enough that a worker would only add overhead. The Crossword Helper searches a 394k-word English corpus with frequency-ranked results so the most likely crossword answers surface first.
Dictionaries are self-hosted and updated deliberately. The Scrabble tools use NWL23 (North American) and Collins CSW21 (international), both sourced under permissive licences. The Anagram Generator draws on carefully curated open-source frequency lists for each of its eight languages. The Wordle tool uses the original NYT answer list alongside the full guessable dictionary.
The philosophy
LexiLab is built around three priorities, in this order: fast, mobile-friendly, and precise. Every page should feel instant on a phone. Results should be correct – not just plausible. And nothing should get in the way between you and the answer you are looking for.
That means no client-side frameworks adding weight, no unnecessary dependencies, no login walls, and no dark patterns. The tools are plain HTML, vanilla JavaScript, and hand-crafted CSS. What you see is what loads.
Feedback, bug reports, and dictionary suggestions are always welcome – see the contact page.
Global reach
The Anagram Generator supports eight languages out of the box – English, French, German, Spanish, Italian, Swedish, Danish, and Norwegian – each with its own carefully sourced main corpus and frequency list. Scandinavian characters (å, ä, ö, æ, ø) are treated as distinct letters throughout, as they should be.
The Scrabble Word Finder supports both the North American tournament standard (NWL23) and the international standard (Collins CSW21 / SOWPODS), so it is useful whether you play in New York or London.