| Name |
Platform |
Remarks |
License |
| HP Autonomy |
Windows |
IDOL Enterprise Desktop Search, HP Autonomy Universal Search.[5] |
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) |
| DocFetcher |
Cross-platform |
Open-source desktop search tool for Windows and Linux, based on Apache Lucene |
Eclipse Public |
| dtSearch Desktop |
Windows |
|
Proprietary (30 day trial) |
| Everything |
Windows |
Find files and folders by name instantly on NTFS volumes |
Freeware |
| Found |
macOS |
Searches for files stored locally, and the cloud and inbox and, is summoned with a double-tap of the ctrl key. Program now discontinued. |
Free, proprietary |
| GNOME Storage |
Linux |
Open-source desktop search tool for Unix/Linux |
GPL |
| Google Desktop |
Linux, macOS, Windows |
Integrates with main Google search engine page; discontinued by Google September 14, 2011 |
Freeware |
| ISYS Search Software |
Windows |
ISYS:Desktop search software |
Proprietary (14-day trial) |
| KRunner |
Linux |
|
|
| Locate32 |
Windows |
Graphical port of Unix's locate & updatedb |
BSD[6] |
| Lookeen |
Windows |
Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. |
Proprietary (14-day trial)[7] |
| Nepomuk |
Linux |
Open-source semantic desktop search tool for Linux. Has been replaced by Baloo in KDE Applications from release 4.13 onward. |
Mix of SA 3.0 and GNU Free Documentation v1.2 |
| Recoll |
Linux, Unix, Windows, macOS |
Open-source desktop search tool for Unix/Linux |
GPL[8] |
| Spotlight |
macOS |
Found in Apple macOS "Tiger" and later OS X releases. |
Proprietary |
| Strigi |
Linux, Unix, Solaris, macOS, Windows |
Cross-platform open-source desktop search engine. Unmaintained since 2011-06-02[9]. |
LGPL v2[10] |
| Terrier Search Engine |
Linux, macOS, Unix |
Desktop search for Windows, Mac OS X Tiger, Unix/Linux. |
Mozilla Public v1.1[11] |
| Tracker |
Linux, Unix |
Open-source desktop search tool for Unix/Linux |
GPL v2[12] |
| Tropes Zoom |
Windows |
Semantic Search Engine (no longer available)[13] |
Freeware and commercial |
| Unity Dash |
Linux |
Was part of Ubuntu Desktop |
GPL v3,[14] LGPL v2.1[15] |
| 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 x86-64 systems. |
Proprietary |
| X1 Desktop Search |
Windows |
Major desktop search product along with Copernic Desktop Search |
Proprietary (14-day trial)[16] |
| Wumpus |
Cross platform |
Desktop search focused on information retrieval research |
GPL |