Alternatives to regain for all platforms with any license

YaCy

YaCy is a free search engine that anyone can use to build a search portal for their intranet or to help search the public internet. When contributing to the world-wide...

Free Open Source Mac Windows Linux Web
Decentralized Peer-To-Peer Anonymity Privacy focused Add a feature

97 Like
DocFetcher

DocFetcher is a portable German/English open source desktop search application. It allows you search the contents of documents on your computer. - You can think of it as...

Free Open Source Mac Windows Linux
Search-in-files Indexed search File Searching Portable ... Search in Archives Semantic Search Add a feature

86 Like
Agent Ransack

Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently. When searching the contents of files Agent Ransack also displays the...

Freemium Windows
Context Menu extension File Searching Outlook search Search-in-files Add a feature

88 Like
Locate32

Locate32 is software which can be used to find files from your harddrives and other locations. It works like updatedb and locate commands in Unix based systems. In other...
- Discontinued The project seems to be no longer developed. Last version, 3.1.11.8220a, released in May 2015, can be still downloaded from SourceForge.
Free Open Source Windows
Auto Indexing File Searching Add a feature

80 Like
Recoll

This package is a personal full text search package which is based on a very strong backend (Xapian), for which it provides an easy to use and feature-rich interface. ...

Free Open Source Mac Windows Linux BSD
File Searching Indexed search Search-in-files File preview ... File Searching Full text search Low memory usage Outlook and email clients integration Semantic Search Add a feature

35 Like
RecentX

RecentX is an innovative launcher that gives you instant access to your files, folders, programs, websites & clipboard history. It automatically remembers your...

Commercial Windows
Program Launchers File Searching Bookmark History Clipboard monitoring ... Drag n drop Duplicate File Finder Windows Explorer integration File Tagging Folder-Search Folder Tagging Indexed search Local Search Portable Image Preview Tabbed interface Tag based Add a feature

95 Like
FSearch

FSearch is a fast file search utility for GNU/Linux operating systems, inspired by Everything Search Engine. It's written in C and based on GTK+3. Note: The...

Free Open Source Linux
Indexed search Support for regular expressions File Searching Add a feature

25 Like
Searchmonkey

A fast real-time search engine for displaying regular expression matches (both file name and content) across multiple directories. Written in Gtk2 it is highly...

Free Open Source Windows Linux BSD
Content Searching File Searching Portable Add a feature

24 Like
FileLocator

FileLocator Lite enables you to locate files on your pc. It performs a thorough and quick search for any file you want to find. It is a free reduced functionality...

Freemium Windows
Support for 64 bit Support for Double-byte languages File Searching Support for Multiple threads ... Support for regular expressions Add a feature

27 Like
Lookeen Desktop Search

A fast and next-generation desktop search and productivity tool for standard and virtual desktops, for private and enterprise search requirements. Finds documents...

Freemium Windows Microsoft Office Outlook
File Searching Indexed search Outlook search Add a feature

84 Like
FileSeek

FileSeek is an easy-to-use file search app that includes advanced functionality for power users! Search through files using simple queries or regular expressions. You...

Freemium $ $ $ Windows
File Searching Portable Add a feature

19 Like
Archivarius 3000

Archivarius 3000 is a full-featured application to search documents and e-mail on the desktop computer, your local network and removable drives (CD, DVD). The documents...

Commercial Windows
File Searching Indexed search Multiple languages Add a feature

15 Like
Index Your Files

Index Your Files allows you to search through all your files or folders on local or networked drives without remote admin rights (as necessary for the similar app...
- Discontinued The program is no longer updated since 2012. Last version, 5.0.2.6, released in December 2010, can be still downloaded from the official website.
Free Windows Linux Wine
File Searching Indexed search Portable Add a feature

15 Like
SwiftSearch

SwiftSearch is a lightweight program whose purpose is to help you quickly find the files you need on your Windows machine without ever requiring you to index your...

Free Open Source Windows
File Searching Persistent Linux Add a feature

11 Like
Find Any File

Find Any File is a program for Apple's Mac OS X that lets you search for files on your disks.

Free Mac
File Searching Add a feature

11 Like