This word ladder builder API to find the shortest routes between words. Available on several datasets, this API version builds ladders for Collins Scabble Words dictionary of 2019 edition, for word lengths between 2 and 9 characters which cover more than 5 billion combinations.
Word Ladders are also called doublets, word-links, change-the-word puzzles, paragrams, laddergrams and word golf. It is used for brain teaser and puzzle games globally including Wordle, Jotto and their variations.