dtSearch Engine – Windows

Download 30-Day Trial (Win)
Please contact us for a password and advice on licensing or beta testing. dtSearch UK offer discounts on multiple platform (Win, Linux, macOS) licenses.

dtSearch Engine – Windows 32 & 64 bit

dtSearch Engine – Linux and macOS versions…

Royalty-free & royalty based licensing to suit applications from a single-server to high volume distribution in your own products

Proven Technology
  • Hundreds of commercial applications incorporate the dtSearch Engine. See Case Studies page
  • dtSearch Desktop, dtSearch Network, dtSearch Publish, and dtSearch Web all use the same dtSearch Engine technology that is licensed to developers
  • dtSearch Corp has been producing search and retrieval software since 1991
Maximum Programmer Flexibility
  • Advanced multi-threaded operation – see Intel Partner Success Story
  • Extensive sample source code:
    .NET Standard
    ASP.NET 1.1 – 4.0
    function-call interface for C++ and Visual C++
    JNI for Java
    ADO.NET for database applications
    COM interface for Visual Basic, ASP and Delphi
  • Sample code in all supported languages – including sample Microsoft Azure application

D763 – dtSearch Engine (Win)
3 server license

D76 – dtSearch Engine (Win)
Additional servers 4+



D763 – Renew an existing 3 server license for further years @ $875 /year (international currency selector available) includes upgrade to latest version and technical support.



Renew/Upgrade an existing single-server dtSearch Web license to 3-servers for @ $1500 (international currency selector available) includes upgrade to latest version and technical support for one year.

Unparalleled Intelligent Searching

API for over twenty five precision search options:

  • Boolean, phrase, wildcards, proximity, stemming, numeric range, regular expressions, natural language relevancy-ranked by hit density and rarity, and variable term weighting, synonym/concept/thesaurus, adjustable fuzziness
  • Search options can be used alone or in almost any combination regardless of complexity
  • Proprietary indexing & search algorithms engineered for scalability
  • Indexed search time is generally less than a second
  • Optimized indexing maintains consistent speed over very large document collections – over 1Tbyte of data per index
  • Unindexed search option for filtering purposes
Instant Support for Multiple File Types
  • Built-in support for PDF, PDF 2.0, HTML, XML, word processor, database, spreadsheet, e-mail, ZIP, and more
  • Unicode to support all written languages
  • Multi-colour highlighted hits with multiple hit and document navigation options in all supported file types
  • Search hits in HTML & PDF are highlighted on the original document – embedded links, images & formatting appear exactly as in original
  • Other file types are converted to HTML for hit-highlighted display in a Web browser
  • Spider .NET API to index local or remote static or dynamic Web sites, SharePoint & other Web based CMS
  • Index sites to any level – support for public and private or secure online content, including log-ins & forms-based authentication. Automatic spidering of sitemap.xml files
Extensive Field & Database Support
  • Automatically supports fields, document properties & summary information – along with full-text search – in HTML, PDF, MS Word, Access, Excel, PowerPoint… see full list
  • Complete hierarchical field structures in XML for searching specific combinations of fields & sub-fields as well as full-text
  • Sample ADO database indexing code provides indexing & searching of SQL & other data sources
  • Hit highlighting, as well as multiple hit & file navigation options in all above