Browse free open source Java Search Engines and projects below. Use the toggles on the left to filter open source Java Search Engines by OS, license, language, programming language, and project status.

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  • 1
    Hibernate

    Hibernate

    An object relational-mapping (ORM) library for Java

    Hibernate is an Object/Relational Mapper tool. It's very popular among Java applications and implements the Java Persistence API. Hibernate ORM enables developers to more easily write applications whose data outlives the application process. As an Object/Relational Mapping (ORM) framework, Hibernate is concerned with data persistence as it applies to relational databases (via JDBC).
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    Downloads: 479 This Week
    Last Update:
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  • 2
    Greenstone

    Greenstone

    Digital Library Software

    Greenstone is a complete digital library creation, management and distribution package created and distributed by the New Zealand Digital Library Project. There are two major versions of the software. Greenstone 3 is under active development, and is recommended for download. We also provide maintenance releases for its forerunner, Greenstone 2. Featured download not what you're looking for? Click "Browse all files" to access binaries and source releases of both versions.
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    Downloads: 373 This Week
    Last Update:
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  • 3
    Elasticsearch

    Elasticsearch

    A Distributed RESTful Search Engine

    Elasticsearch is a distributed, RESTful search and analytics engine that lets you store, search and analyze with ease at scale. It lets you perform and combine many types of searches; it scales seamlessly, and offers answers incredibly fast with search results you can rank based on a variety of factors. Elasticsearch can be used for a wide variety of use cases, from maps and metrics to site search and workplace search, and with all data types.
    Downloads: 13 This Week
    Last Update:
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  • 4
    PDFBox is a Java PDF Library. This project will allow access to all of the components in a PDF document. More PDF manipulation features will be added as the project matures. This ships with a utility to take a PDF document and output a text file.
    Downloads: 15 This Week
    Last Update:
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  • Photo and Video Editing APIs and SDKs Icon
    Photo and Video Editing APIs and SDKs

    Trusted by 150 million+ creators and businesses globally

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  • 5
    OpenSearchServer Search Engine

    OpenSearchServer Search Engine

    An open source search engine with RESTFul API and crawlers

    OpenSearchServer is a powerful, enterprise-class, search engine program. Using the web user interface, the crawlers (web, file, database, etc.) and the client libraries (REST/API , Ruby, Rails, Node.js, PHP, Perl) you will be able to integrate quickly and easily advanced full-text search capabilities in your application: Full-text with basic semantic, join queries, boolean queries, facet and filter, document (PDF, Office, etc.) indexation, web scrapping,etc. OpenSearchServer runs on Windows and Linux/Unix/BSD.
    Downloads: 12 This Week
    Last Update:
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  • 6
    ResCarta

    ResCarta

    Archive your personal history

    ResCarta Toolkit offers an open source solution to creating, storing, viewing, and searching digital collections. Applications in the toolkit let users create and edit metadata, convert data to open standard ResCarta format, index and host collections.
    Leader badge
    Downloads: 14 This Week
    Last Update:
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  • 7
    Regain is a Java search engine based on Jakarta Lucene. It provides indexing and searching files for plenty of formats (HTML,XML,doc(x),xls(x),ppt(x),oo,PDF,RTF,mp3,mp4,Java). A TagLibrary eases integrating search results in your JSP based web page.
    Downloads: 10 This Week
    Last Update:
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  • 8
    The Lemur Project

    The Lemur Project

    Search engine and data mining applications and ClueWeb datasets.

    The Lemur Project develops search engines, browser toolbars, text analysis tools, and data resources that support research and development of information retrieval and text mining software, including the Indri search engine in C++, the Galago search engine research framework in Java, the RankLib learning to rank library, ClueWeb09 and ClueWeb12 datasets and the Sifaka data mining application.
    Downloads: 3 This Week
    Last Update:
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  • 9
    Web Spider, Web Crawler, Email Extractor

    Web Spider, Web Crawler, Email Extractor

    Free Extracts Emails, Phones and custom text from Web using JAVA Regex

    In Files there is WebCrawlerMySQL.jar which supports MySql Connection Please follow this link to get latest version https://sourceforge.net/projects/web-spider-web-crawler-extract/ Free Web Spider & Crawler. Extracts Information from Web by parsing millions of pages. Store data into Derby OR MySQL Database and data are not being lost after force closing the spider. - Free Web Spider , Parser, Extractor, Crawler - Extraction of Emails , Phones and Custom Text from Web - Export to Excel File - Data Saved into Derby Database - Written in Java Cross Platform See also Free Email Sender in this link: https://sourceforge.net/projects/gitst-free-email-ender/ Please install Microsoft OpenJDK to start the application https://www.microsoft.com/openjdk
    Downloads: 5 This Week
    Last Update:
    See Project
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    No-Nonsense Code-to-Cloud Security for Devs | Aikido

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  • 10
    NekoHTML is a simple HTML scanner and tag balancer that enables application programmers to parse HTML documents and access the information using standard XML interfaces.
    Downloads: 3 This Week
    Last Update:
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  • 11
    Hyper Estraier is a full-text search system. It works as with Google, but based on peer-to-peer architecture. Using Hyper Estraier, we can construct a large-scaled search engine with cheap computers.
    Leader badge
    Downloads: 12 This Week
    Last Update:
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  • 12
    YaCy Peer-to-Peer Search Engine

    YaCy Peer-to-Peer Search Engine

    Decentralized Web Search Engine

    YaCy is a free search engine that anyone can use to build search the internet (www and ftp) or to create a search portal for others (internet or intranet). The scale of YaCy is limited only by the number of users and can index billions of web pages. In p2p mode it is fully decentralized, all users of the search engine network are equal and it is not possible for anyone to censor the content of the distributed index.
    Downloads: 3 This Week
    Last Update:
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  • 13
    Carrot2
    Project moved to GitHub! https://github.com/carrot2/carrot2 Carrot2 is an Open Source Search Results Clustering Engine. It can automatically organize small collections of documents, e.g. search results, into thematic categories. Carrot2 integrates very well with both Open Source and proprietary search engines.
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    Downloads: 9 This Week
    Last Update:
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  • 14
    WebSPHINX is a web crawler (robot, spider) Java class library, originally developed by Robert Miller of Carnegie Mellon University. Multithreaded, tollerant HTML parsing, URL filtering and page classification, pattern matching, mirroring, and more.
    Downloads: 3 This Week
    Last Update:
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  • 15
    webExtractor is a Java application that is used for extracting specific content from web based HTML, XML, CSV, and free form text. The extracted data can be used for data gathering and mining purposes.
    Downloads: 6 This Week
    Last Update:
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  • 16
    Web Spider, Web Crawler, Email Extractor

    Web Spider, Web Crawler, Email Extractor

    Free Extracts Emails, Phones and custom text from Web using JAVA Regex

    In Files there is WebCrawlerMySQL.jar which supports MySql Connection Free Web Spider & Crawler. Extracts Information from Web by parsing millions of pages. Store data into Derby Database and data are not being lost after force closing the spider. - Free Web Spider , Parser, Extractor, Crawler - Extraction of Emails , Phones and Custom Text from Web - Export to Excel File - Data Saved into Derby and MySQL Database - Written in Java Cross Platform Also See Free email Sender : https://sourceforge.net/projects/gitst-free-email-ender/ Please install Microsoft OpenJDK to start the application https://www.microsoft.com/openjdk
    Downloads: 5 This Week
    Last Update:
    See Project
  • 17
    Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (file systems, web sites, mail boxes, ...) and the file formats (documents, images, ...) occurring in these systems.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    WebHarvest - web data extraction tool
    Web data extraction (web data mining, web scraping) tool. It leverages well proved XML and text processing techologies in order to easely extract useful data from arbitrary web pages.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19

    Smart Cache Loader

    Very configurable web downloader

    Smart Cache Loader is a very configurable pure Java web grabber with special support for integration with Smart Cache proxy server. It can perform different loading operations based on URL mask, content-type, ...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 20
    The Wikipedia Miner toolkit provides simplified access to Wikipedia. This open encyclopedia represents a vast, constantly evolving multilingual database of concepts and semantic relations; a promising resource for nlp and related research.
    Downloads: 1 This Week
    Last Update:
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  • 21
    A tool which allows you to download all erotic images and videos hosted on popular image hosting sites tagged with a given tag without clicking you through the web interface. ,,java bayimg yourtag'' is enought.
    Downloads: 3 This Week
    Last Update:
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  • 22
    QuickFind

    QuickFind

    Instant File Search

    QuickFind is a cross platform Java Application for searching files in your Computer. The sole purpose of this application is to save user time by searching the desired file almost instantly. User has all the freedom to schedule or cache manually any time on selected directories. Once the caching is done all you have to do is input the name of the file you want to find.
    Downloads: 3 This Week
    Last Update:
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  • 23
    A Java implementation of a flexible and extensible web spider engine. Optional modules allow functionality to be added (searching dead links, testing the performance and scalability of a site, creating a sitemap, etc ..
    Downloads: 2 This Week
    Last Update:
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  • 24
    A torrent search engine plugin for the Azureus/Vuze bittorrent platform.
    Downloads: 2 This Week
    Last Update:
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  • 25
    CoinSparc SEO suite for Android

    CoinSparc SEO suite for Android

    Full SEO (Search Engine Optimization) app for Android.

    Packing all necessary tools used for SEO including URL submitter, Search Engine Ping tool, Site Stability Analyzer, All Major Webmaster Toolkits (Google, Bing, Yahoo, Yandex, Baidu), Keyword Density Checker, Rank Checkers, Backlink Builders, Sitemap Submitter Social Media Metrics & Analysis tools, Mass traffic generator and Blogging tools & tips. CoinSparc delivers the power of a fully fledged PC application to your smartphone. It certainly replaces the tens of different application you use for SEO by bundling all of them into one compact app. A must have tool for all Bloggers, Website Owners, Marketers and Android Web lovers.
    Downloads: 2 This Week
    Last Update:
    See Project
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