Elasticsearch Alternatives

Algolia is a hosted search engine capable of delivering real-time results from the first keystroke. Algolia provides developers with a powerful API that can be used to quickly and seamlessly implement search within your websites, mobile, and voice applications. Their goal is to provide development teams with the building blocks to create a fast, relevant search experience.

An open source, blazingly fast and hyper relevant search-engine that will improve your search experience.

AddSearch is a drop-in search solutions for websites and web applications. With AddSearch you can take advantage of your search to drive traffic to the most important pages of your website. Fine-tune your search results to make sure your visitors find what they are looking for with autocomplete and search suggestions. AddSearch also provides features for personalized search results, allowing individual users to experience user segment  results depending on their history, behavious or settings.

Azure Cognitive Search is cloud-based search service formerly known as Microsoft Azure Search. Azure Cognitive Search uses Microsoft Bing's natural language stack, used by the search engine for more than a decade, to power AI services across vision, language, and speech. With Azure Cognitive Search, you can spend more time building your product than maintaining complex search infrastructure.