Typesense - Typo tolerant, delightfully simple, open source search 🔍
SearchWP - Instantly improve the search experience of your WordPress site today with SearchWP, the best WordPress search plugin you can find!
Angular InstantSearch by Algolia - Build beautiful search UX on top of Angular
Meilisearch - Ultra relevant, instant, and typo-tolerant full-text search API
autoComplete.js - Simple autocomplete pure vanilla Javascript library.
FacetWP - FacetWP is an advanced WordPress plugin that allows you to add search to your shop archives, listings, recipe pages, and more.