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

  • The Most Powerful Software Platform for EHSQ and ESG Management Icon
    The Most Powerful Software Platform for EHSQ and ESG Management

    Addresses the needs of small businesses and large global organizations with thousands of users in multiple locations.

    Choose from a complete set of software solutions across EHSQ that address all aspects of top performing Environmental, Health and Safety, and Quality management programs.
    Learn More
  • Iris Powered By Generali - Iris puts your customer in control of their identity. Icon
    Iris Powered By Generali - Iris puts your customer in control of their identity.

    Increase customer and employee retention by offering Onwatch identity protection today.

    Iris Identity Protection API sends identity monitoring and alerts data into your existing digital environment – an ideal solution for businesses that are looking to offer their customers identity protection services without having to build a new product or app from scratch.
    Learn More
  • 1
    EverythingToolbar

    EverythingToolbar

    Everything integration for the Windows taskbar

    EverythingToolbar is an open-source Windows utility that integrates Voidtools’ “Everything” file search directly into the Windows taskbar search bar. It mimics the look and feel of Windows 10/11 search and offers seamless real‑time file search powered by Everything. EverythingToolbar includes common search filters out of the box. For advanced users, it can synchronize with Everything's custom filters, giving you complete control over your search experience. Enable this feature by checking Use Everything filters in the EverythingToolbar's Filters settings. Easily toggle search flags (match case, whole word, match path, and regex) to find your files with precision. Create custom Open with actions by navigating to Settings → Custom actions. Enable Automatically apply rules based on condition to execute commands automatically based on file type and regular expressions. Leave the regex field empty to display the action only in the context menu.
    Downloads: 41 This Week
    Last Update:
    See Project
  • 2
    FileSearch
    FileSearch is a multi-threaded documents searcher. No indexes need to be updated ; no background service is required. The more you have drives the more search speed is increased thanks to its multi-threading technic.
    Downloads: 7 This Week
    Last Update:
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  • 3
    Geoportal Server
    Geoportal Server is a standards-based, open source product that enables discovery and use of geospatial resources including data and services.
    Downloads: 5 This Week
    Last Update:
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  • 4
    OpenWebSpider
    OpenWebSpider is an Open Source multi-threaded Web Spider (robot, crawler) and search engine with a lot of interesting features!
    Downloads: 4 This Week
    Last Update:
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  • AestheticsPro Medical Spa Software Icon
    AestheticsPro Medical Spa Software

    Our new software release will dramatically improve your medspa business performance while enhancing the customer experience

    AestheticsPro is the most complete Aesthetics Software on the market today. HIPAA Cloud Compliant with electronic charting, integrated POS, targeted marketing and results driven reporting; AestheticsPro delivers the tools you need to manage your medical spa business. It is our mission To Provide an All-in-One Cutting Edge Software to the Aesthetics Industry.
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  • 5
    The stuff here has no documentation and some of it may never be completed. This is my playground, use at your own risk.
    Downloads: 2 This Week
    Last Update:
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  • 6
    NzbSearcher
    NzbSearcher is a windows client for SABnzbd which integrates it with various UseNet (nzb) search sites. Check website below for changelog. Currently supported NZB search sites: NZBindex.nl, NzbMatrix.com, YabSearch.com and NZB.su
    Downloads: 3 This Week
    Last Update:
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  • 7
    FileMasta

    FileMasta

    A search application to explore, discover and share online files

    A federated search application for discovering interesting files that are being shared online, such as video, music, books, software, games, subtitles and much more. All data is crawled by od-database which collects information about the contents of servers worldwide. We don't search file contents. We host no content, we provide only access to already available files in the same way Google and other search engines do.
    Downloads: 5 This Week
    Last Update:
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  • 8
    The image crawler application is used to collect a multitude of images from websites. The images can be viewed as thumbnails or saved to a given folder for enhanced processing. (Html and XML report are generated)
    Downloads: 4 This Week
    Last Update:
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  • 9
    A toolkit for crawling information from web pages by combining different kinds of "actions". Actions are simple operations such as navigation to a specified url or extraction of text from the html. Also available is a graphic user interface.
    Downloads: 3 This Week
    Last Update:
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  • Collect! is a highly configurable debt collection software Icon
    Collect! is a highly configurable debt collection software

    Everything that matters to debt collection, all in one solution.

    The flexible & scalable debt collection software built to automate your workflow. From startup to enterprise, we have the solution for you.
    Learn More
  • 10
    The Rainbow project is an open source initiative to build a comprehensive content management system using Microsoft's ASP.NET and C# technologies. It has ASP.NET 1.1 and ASP.NET 2.0 code bases.
    Downloads: 1 This Week
    Last Update:
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  • 11
    Infinispan

    Infinispan

    High performance distributed in-memory key/value store

    Infinispan is an open source, Java based data grid platform. ***IMPORTANT*** Starting with Infinispan 5.0.0.FINAL, Infinispan releases are no longer hosted in Sourceforge. They can now be located in www.jboss.org/infinispan/downloads
    Downloads: 2 This Week
    Last Update:
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  • 12
    DocLib is a Web-based Document Management System implemented in ASP .NET technology to facilitate documents finding in Full Text Search, Directory Browsering, Search by document summary,by Catagory/Attribute , and by Virtual Directory.
    Downloads: 1 This Week
    Last Update:
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  • 13
    The aim of this project is to develop client software for PubSub.com's XMPP-based JEP-60 publish-subscribe system.
    Downloads: 1 This Week
    Last Update:
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  • 14
    URLMonitor is a program for monitoring webpages at defined intervals to perform conditional checks on the context of the page, and launch actions upon the conditional returning true. The GUI sets the variables, then an external dll processes the protocol
    Downloads: 1 This Week
    Last Update:
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  • 15
    This intended to be a fast local network(ftp/smb) file indexer and searcher. It's daemon is written in C#, it will have a GUI client, WEB interface for integration into networks' sites and using PgSQL as backend
    Downloads: 1 This Week
    Last Update:
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  • 16
    Burd's Proxy Searcher

    Burd's Proxy Searcher

    Desktop application for proxy searching

    You want to find free proxy, but it is so hard to do it manually? Just try Burd's Proxy Searcher program. It is looking for list of proxies in Internet with using of public search engines, checks if those proxies works in your Internet segment, gathers additional information. If you want to be anonymous and don't want to spend much time for manual search then this program was developed especially for you. Tags: the free proxy, proxy list, proxies, proxy for free, proxy providers
    Downloads: 1 This Week
    Last Update:
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  • 17
    A drop-in framework for adding tagging (folksonomy) capabilities to existing applications
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Unlock Google's potential. Use this application to find infomation that is more relevant to your search... This application allows enhanced searching on Google without the need for long modifiers etc..
    Downloads: 0 This Week
    Last Update:
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  • 19
    The Anywhere Location Search allows for location searches using a wide range of inputs (address, city/state, zip code, search string, IP address, landmark name, etc).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    People Connection Art Portal. To connect Art creators and Art consumers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    This is BBO i.sh.an.
    Downloads: 0 This Week
    Last Update:
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  • 22
    New C# framework for HTML scrapping and form submitting. Fetch HTML from site and fill form fields programmitically and then send them back to server. Save session between application and web server and HTML analyzer.
    Downloads: 0 This Week
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  • 23
    A feed harvesting service made for collecting direct links to reviews, as well as a webservice exposing the collected data.
    Downloads: 0 This Week
    Last Update:
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  • 24
    The Completion of CMS.NET the CMS built in Stephen R. G. Frasers book Real World ASP.NET: Building a Content Management System. For those of you who have read the book know its a good beginning but there is still a long way to go.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    CodeBrowser.net is a sourcecode and file browser that crawls different (version controlled) sources, displays the content and makes it searchable over http.
    Downloads: 0 This Week
    Last Update:
    See Project
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