Xapian
ElasticSearch
ElasticHQ
Kaizen
Apache Solr
LogFusion
OpenSearchServer
Algolia
SeekStorm
Algolia
Google Cloud Search
Amazon CloudSearch
Google Custom Search
Searchify
Sajari
Klevu
SeekStorm is a Search as a Service: web-scale, real-time, full text, instant search for your data and documents. SeekStorm is a Crawler as a Service: high-performance, focused crawler turns any website into JSON docs with structured data.
20x speed and 200x payload compared to Lucene 30x more queries & docs per $ spent than other SaaS
Xapian SeekStormBased on our record, Xapian seems to be more popular. It has been mentiond 7 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Recoll is free/open source (GPL) that can index PDFs and search them very quickly. It uses Xapian under the hood. I have over 165,000 documents indexed on an old laptop running Linux and can query them all in a split second. Source: 7 months ago
+ xapian which has been around a while, and while gpl licensed, is quite capable https://xapian.org/. - Source: Hacker News / over 1 year ago
Tangentially related if you need search without the clustering and high availability story of elastic search and friends I highly recommend Xapian. Its like the SQLite of search. Single library that provides the basic set of features you would expect in a quality search experience: facets, ranked search, boolean operators, stemming etc etc. https://xapian.org/. - Source: Hacker News / over 1 year ago
For fast searching, it usually requires indexing the files in question. There are a number of text-file indexing solutions, many of which use xapian, sphinx, or lucene/solr under the hood. Based on conditions (watching files/directories, cron jobs, new-mail triggers, etc), they'll add/remove files to the index, and you can then use a corresponding command to compose queries across that data. If it's indexed, it... Source: about 2 years ago
There is also xapian/recoll https://xapian.org/ which works great for "desktop" search. - Source: Hacker News / over 2 years ago
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
Algolia - 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.
ElasticHQ - Tool for ElasticSearch management and monitoring.
Google Cloud Search - Search across all your company's content in G Suite.
Kaizen - Kaizen is an ElasticSearch GUI for Windows, Mac and Linux, written in JavaFX as a cross-platform desktop application.
Amazon CloudSearch - Amazon CloudSearch is a fully-managed service in the cloud that makes it easy to set up, manage, and scale a search solution for your website.