Open Source Search Software

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.

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.

A simple document management system (DMS). Documents and associated datas are stored in a single file. Keep all your documents in your pocket on your USB stick.

The goal of DynaQ is to develop an inquiry system to explore the personal information space, supporting you with the searching paradigm 'orienteering'. DynaQ is a (desktop)search engine with enhanced functionality for file, email and blog search. Look at our GitLab homepage for sourcecode and documentation: http://dynaq.opendfki.de

FileLocator is an Open source Windows application written in .Net 4 and its duty is to locate any file in your system!

GoldenOrb is a java library under the Apache License V2.0 for correlation, summarization and clustering of text information.

Gumshoe Desktop Search indexes local files of various formats on a Windows desktop and provides a search GUI. The project is developed in Java. It builds on other opensource projects including Lucene, Luke, SWT, tagsoup, Jakarta POI and others.

Uses alternate data streams to provide arbitrary tagging and searching of files within NTFS and other modern file systems supporting alternate data streams. Customisable vocabulary provides searchable standardised tagging system of file associations. Unlike most other file archiving systems, no additional database is required, and the system is robust, and persists file attributes irrespective of renaming / moving / copying / modifying etc. I would appreciate your opinions and suggestions / bugs etc.

You are looking for a installed font? Then you're right! JFontTools offer you a full system to search, analyse and compare fonts! Present fonts to other by generating HTML previews and print a example page. Manage your installed fonts and deinstall unne

A simple little engine to do fuzzy name & address searching. Helps improve data quality and avoids duplicate data entry.

Built in SWT. It indexes and searches a large number of text files for given keywords.

A metadata-based file manager. Current file managers force you to rely on your filesystem hierarchy to organise your files. MetaLister liberates you from this restrictive system and allows you to use metadata for all of your organisational needs.

OOSearch is a full text search program for OpenOffice.org files. It opens all OpenOffice.org files in a specified directory or volume and searches for a given keyword. The found files can be opened via OOSearch directly.

OpenEphyra is an open framework for question answering (QA). It retrieves answers to natural language questions from the Web and other sources. Visit http://www.ephyra.info/ for more details and information on joining this open research initiative.

This project considers the problem of calculating primes as a sorting problem. It includes the most efficient tree-based sorting algorithm that is possible and shows that finding a new prime can be done by sorting the differences between the previous primes in the right way. Unfortunately it has turned out that going this way is even more slowly than trying to find primes by brute force. So it can only be used as a test with heavy load for the sorting algorithm, which can be used for sorting any kind of data. And as already mentioned, it's just the most efficient tree-based sorting algorithm that you can get. But furthermore this way of finding primes interestingly leaves a hard nut to crack for mathematicians: In very rare cases it finds numbers that are not primes. For all primes below one million this phenomenon arises in exactly two cases: 31213 which is 7 * 7 * 7 * 7 * 13 336141 which is 3 * 3 * 13 * 13 * 13 * 17 Who can explain, why?

Quotero was an open source Document Management System (DMS) developed in java. It provides basic document management features and advanced collaborative features such as version control, comments, workflow, etc. Quotero becomes Kimios. Please visit https://sourceforge.net/projects/kimios/ Web Site: http://www.kimios.com Issues: http://issues.kimios.com Wiki: http://wiki.kimios.com

The SSAF ("Secure Search And Forwards") is a dirt-simple standalone web app for inexpensive and secure information sharing. Any uploaded record may be forwarded to an intended destination, and may also be stashed in a searchable repository.

Single Click Real Time searching of both structured and unstructured data and information. Simultaneous searching of Structured: databases and unstructured: documents from within a web browser, desktop application and application plugins

The system searches synonyms (and related words) in Wikipedia. WikIDF generates index database of Wikipedia (for Russian, English, and German). The continuation of this project is "wikokit" at code.google.com

SynchroMike is a two-way synchronisation program which allows the user to synchronize two directories. It comes with a handy user interface which displays differences between both storage locations as a tree. Update: This page is deprecated, find the new program at <a href="http://syncarus.net">syncarus.net</a>

TR2F goal is to be attributes/tags management system, a sort of web based browser and deal engine. Features: contacts directory, portfolios, product catalogs, marketplace, and more. Web feed/attribute viewer/creator/composer/publisher is coming soon...

A set of programms which utilize TreeViews to display data and information in a hierarchical and concise way. One is TreeText, displaying your notes attached to a node in a TreeView. Next is NetSync: The maybe best Folder Compare & Sync Tool you can find

This is a search engine that really works!Written in PHP/MySQL,easy installation(only edit the database settings,ex. localhost),upload and start using it!Only 2mb in size,for more please check the home page of the search engine: http://findthis.info

A P2P application that shares raw information between peers. Using a altered G2 protocol (called Z1) to search data within files/databases by means of file and database specific providers. Web services nodes may in future extend the Z1 network beyond des

A tool for autonomous and virtual topical data integration using the focused web-harvesting method.