Two-layer word list
A small core list loads with the page so the interface is immediately usable. When you run a search, the site loads only the word-length data needed for that query. The extended source contains 636,598 entries, so a five-letter search does not need to download the entire dataset.
The search still runs in your browser after the required word-list files are loaded.
Extended source and license
The extended list is derived from words/an-array-of-spanish-words, which describes itself as a list of approximately 636,000 Spanish words derived from the Letterpress word list. The upstream repository is distributed under the MIT License and credits Zeke Sikelianos.
The exact source data snapshot used by this site is recorded as Git blob 365218ec72a93bfd0c26a0836a4d4fe6bf6124bb. The repository also includes THIRD_PARTY_NOTICES.md with the full required MIT notice.
What the extended list means
The extended source improves coverage substantially, including many inflected, uncommon and historical-looking forms. It should be treated as a broad word list, not as a claim that every returned form is accepted by the RAE, a classroom assignment, or a specific word-game edition.
A returned word is not a guarantee of official tournament validity, and a missing word does not prove that a word is invalid.
Strict spelling mode
Strict mode preserves Spanish spelling. Ñ remains different from N, and accented vowels remain different from unaccented vowels.
Flexible and word-game modes
Flexible matching ignores vowel accent marks and the diaeresis for matching while keeping Ñ separate from N. This is useful when a puzzle omits written accents.
Search logic
The main tool counts available letters and returns words that can be built from that rack. The optional question mark represents one blank letter. Exact-anagram mode requires every entered letter to be used. Length and position filters are applied after letter matching.
Classic scoring scope
The Scrabble-oriented page uses the site's documented Classic Spanish tile values for estimated scoring. Editions and accepted lexicons differ, so confirm the rules required for formal play.
Privacy and analytics
Entered letters are processed in the browser. The browser may download the relevant static word-list files from this site to complete a search. Google Analytics measures general site traffic and interaction. Read the Privacy Policy for details.
Review date
Word-list source, algorithm and public-claim review: September 21, 2026.