Desktop search tools
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Desktop search engines listed on a light purple background are no longer in active development.
| Name | Platform | Remarks | License |
|---|---|---|---|
| DocFetcher | Cross-platform | Open source desktop search tool for Windows and Linux, based on Apache Lucene | Eclipse Public License |
| Beagle | Linux | Open source desktop search tool for Linux based on Lucene. Unmaintained since 2009. | A mix of the X11/MIT License and the Apache License |
| GNOME Storage | Linux | Open Source desktop search tool for Unix/Linux | GPL |
| Nepomuk | Linux | Open Source semantic desktop search tool for Linux. Has been replaced by Balooin KDE Applications from release 4.13 onward. | License SA 3.0 and the GNU Free Documentation License 1.2 |
| Unity Dash | Linux | Part of Ubuntu Desktop. | GPL v3[11], LGPL v2.1[12] |
| Terrier Search Engine | Linux, Mac OS X, Unix | Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. | MPL v1.1[9] |
| Google Desktop | Linux, Mac OS X, Windows | Integrates with the main Google search engine page. 5.9 Release now supports x64 systems. As of September 14, 2011, Google has discontinued this product. | Freeware |
| Tracker | Linux, Unix | Open Source desktop search tool for Unix/Linux | GPL v2 [6] |
| Strigi | Linux, Unix, Solaris, Mac OS Xand Windows | Cross-platform open source desktop search engine | LGPL v2 [8] |
| Recoll | Linux, Unix, Windows, macOS | Open Source desktop search tool for Unix/Linux | GPL [7] |
| Spotlight | macOS | Found in Apple Mac OS X "Tiger" and later OS X releases. | Proprietary |
| Autonomy | Windows | IDOL Enterprise Desktop Search, HP Autonomy Universal Search.[3] | Proprietary, commercial |
| Copernic Desktop Search | Windows | Major desktop search program. The full trial version downgrades after the trial period automatically to the free version, which is (anno 2018) limited to indexing a maximum of 10.000 files. | Proprietary (30 day trial) |
| dtSearch Desktop | Windows | Proprietary (30 day trial) | |
| Everything | Windows | Find files and folders by name instantly on NTFS volumes | Freeware |
| ISYS Search Software | Windows | ISYS:desktop search software. | Proprietary (14-day trial) |
| Locate32 | Windows | Graphical port of Unix's locate & updatedb | BSD License[4] |
| Lookeen | Windows | Major Microsoft Windows search product. | Proprietary (14-day trial)[5] |
| Tropes Zoom | Windows | Semantic Search Engine (no longer available).[10] | Freeware and commercial |
| Windows Search | Windows | Part of Windows Vista and later OSs. Available as Windows Desktop Search for Windows XP and Server 2003. Does not support indexing UNC paths on x64 systems. | Proprietary |
| X1 Desktop Search | Windows | Major desktop search product along with Copernic Desktop Search. | Proprietary (14-day trial)[13 |
Desktop search tools search within a user's own computer files as opposed to searching the Internet. These tools are designed to find information on the user's PC, including web browser history, e-mail archives, text documents, sound files, images, and video. A variety of desktop search programs are now available; see this listfor examples. Most desktop search programs are standalone applications. Desktop search products are software alternatives to the search software included in the operating system, helping users sift through desktop files, emails, attachments, and more.[1][2][3]
Desktop search emerged as a concern for large firms for two main reasons: untapped productivity and security. According to analyst firm Gartner, up to 80% of some companies' data is locked up inside unstructured data — the information stored on an user's PC, the directories (folders) and files they've created on a network, documents stored in repositories such as corporate intranets and a multitude of other locations.[4] Moreover, many companies have structured or unstructured information stored in older file formats to which they don't have ready access.
Historically, full desktop search comes from the work of Apple Computer's Advanced Technology Group, resulting in the underlying AppleSearchtechnology in the early 1990s. It was used to build the Sherlock search engine and then developed into Spotlight, which brought automated, non-timer-based full indexing into the operating system
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