eSearch Pro - Desktop AI-powered Information Retrieval

eSearch Pro combines advanced information retrieval with AI-powered web search to enhance productivity for professionals who need to quickly find information from a wide range of data sources in any language.

Typical uses include searching case law, legal precedents, academic literature, project documents, translation, investigative journalism, OSINT, source code, knowledge-management & research in many domains.

Modern user interface, instantly switchable to YOUR language

eSearch Pro AI Mode combines live uncensored Web search with the latest Perplexity Sonar Reasoning models, these use the DeepSeek R1 open-source AI LLM, hosted on servers in the USA. Other LLM options include Sonar, Sonar Pro, OpenAI’s GPT, or Custom on-line or local LLM (1.0.9173 11 Feb 2025 beta).

Above: AI Mode. Perplexity Sonar Reasoning model. Question stem wordlist.

Features

Fully scrollable word list displays all the words in your files. AI Mode lists Question Stems. Double-click on a word to enter it in the search query.

Multiple indexes. Each index can be given a meaningful name and easily configured to include folders, files or specific file types.

Indexes can include multilingual stop words or none. Indexes can be case sensitive or not, with choice of maximum file size or word length.

Scrollable list of results, with choice of metadata columns. Sort on any column.

View files with your query words highlighted, View images and their metadata. Images containing geolocation data can display the location on a map.

Above: View GPS location

Quickly insert Boolean operators with ‘All’ or ‘Any’ word defaults.

Search using a ‘list of words’ for eDiscovery/eDisclosure.

Regular Expression search. Built in IPV4 search example.

Search expansion options include multilingual stemming and multiple pre-defined and a user-defined thesaurus files.

You can export results as time-stamped XML, CSV or TSV file, or copy document text, append notes, and save to a timestamped file.

Extensive file format support

eSearch includes the open-source Apache TIKA toolkit to extract text and metadata. Metadata is displayed in a separate window.

Built in PDF viewer.

Search inside compressed archive files like .zip .rar .bz2 .gzip.

Over 40 source code formats, with syntax highlighting and line numbers.

Navigate between numbered highlighted hits.

Uniquely, eSearch Pro allows you to instantly switch the UI language. You can also translate the user interface into YOUR language using the free Language File Editor!

eSearch is a self-contained 64-bit .NET 8.0 application using the open-source Lucene .NET search engine. You can install on any Windows 10 or 11 machine without worrying about the installed .NET runtime. There is no need to download any other files, such as Java or C++ runtimes. Portable version can be run on a USB 3.x flash drive, to search files on the host machine or on the USB drive.

Cross-Platform
Versions will be available for Linux and macOS as well as Microsoft Windows 10 or 11 64-bit.

See the User Guide for more information.

Note: This product is in beta test phase.

Sign up now!

Beta testers wanted! Free one year license for active beta testers.

eSearch Pro

30-day free trial. Quick Checkout – no details or card needed! Reverts to eSearch Lite after 30-days – free for personal & commercial use.
(Large download ~600MB!)

This is a pre-release version for customer feedback. All feedback & suggestions are welcome!
Contact us…
eSearch Pro is a work in progress. Check back often for new releases.

Release notes

1.0.9183 (2025-02-21) (Public Beta)
Sign up to test latest ‘members only’ beta.


Introductory offer: eSearch Pro will be supplied free of charge to holders of a dtSearch Desktop license that is within the included one year support or current on extended support from dtSearch UK. (Reserve your copy now, Available until further notice)

Language File Editor (free)

Immediate download, no registration required.

eSearch Portable

30-day free trial. Quick Checkout – no details or card needed! Reverts to eSearch Lite after 30-days – free for personal & commercial use.
(Large download ~700MB!)

This is a pre-release version for customer feedback. All feedback & suggestions are welcome!

eSearch Portable is a version of eSearch Pro designed to run from a USB 3.x flash drive. Nothing is stored on the host machine and Internet access is not required.

Use it to search a portable library on the USB flash drive or to index and search files on host machine(s).

Portable Search-Only license lets you publish searchable document/image collections within an organisation or to your clients or subscribers. Ideal where access to internet is unreliable or security is a priority.

See eSearch Pro User Guide for details.

eSearch Pro Reviews