Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
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Google Custom Search is a platform provided by Google that allows web developers to feature specialized information in web searches, refine and categorize queries and create customized search engines, based on Google Search.
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SearchTap is a search technology that can easily integrate with websites and mobile apps to provide an Amazon-like search experience without writing any code. It solves search problems for websites, businesses, mobile apps and enterprise software.
paid Free Trial $59.0 / Monthly (Upto 1k Products & 10k Searches)
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Elasticsearch is an open source, distributed, RESTful search engine.
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Swiftype Site Search helps to sell more, get the right answer to more people on the platform and surface relevant content for readers and followers.
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Turn the web into a database!
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Apache Nutch is a highly extensible and scalable open source web crawler software project.
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Apisearch official website.
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StormCrawler is an open source SDK for building distributed web crawlers with Apache Storm.
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Adds super fast search autocomplete, spell correct and search listing pages to your site search.
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ACHE is a web crawler for domain-specific search.