Catfish!

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 words, it uses databases to store information about directory structures and uses these databases in searches. The use of these databases provides very fast searching speed. The software includes a dialog based application as well as console programs which can be used to both update and access databases.

RecentX gives you fastest access to your files, folders, programs, websites and also clipboard history in Windows. What's special is that it automatically remembers your recent and favorite items so that you can access them faster than searching all the files, folders etc. You can assign tags to all of them. You will be surprised to see how much hassle it saves and makes computing really enjoyable. We have stuffed this app with innovations that will boost your productivity.

Think Mac OS Xs Spotlight could use some help? Download EasyFind, an alternative to (or supplement of) Spotlight and find files, folders, or contents in any file without indexing. EasyFind is especially useful for those tired of slow or impossible indexing, outdated or corrupted indices, or those just looking for features missing in the Finder or Spotlight.

SearchMyFiles is a non-indexing portable alternative to the standard "Search For Files And Folders" module of Windows. It allows you to easily search files in your system by wildcard, by last modified/created/last accessed time, by file attributes, by file content (text or binary search), and by the file size. SearchMyFiles allows you to make a very accurate search that cannot be done with Windows search. For Example: You can search all files created in the last 10 minutes with size between 500 and 700 bytes. After you made a search, you can select one or more files, and save the list into text/html/csv/xml file, or copy the list to the clipboard.SearchMyFiles is portable, and you can use it from a USB flash drive without leaving traces in the Registry of the scanned computer. The utility is a part of NirLauncher Pack. »

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.

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 drives. Most search utilities that achieve similar speeds do so by indexing drives while the computer is idle, but because idleness detection is so difficult to get right, in practice they end up slowing down the whole system just to speed up search. SwiftSearch works differently: given administrator privileges, it completely bypasses the file system (only NTFS supported) and reads the file table directly every time, which speeds up search by many orders of magnitude. Typically searches yield full results in ~10 seconds or less, a significant speedup for many users. As a bonus, this program also supports path-based search (for example, you can search for "*Program*\Windows*"), regular expressions (just start the search name with '>' character), and full directory sizes. Its goal is to be simple, swift, and intuitive to use. »

Instant file search, showing results as you type.

Scherlokk is a lightning fast file search utility build for precise and reliable search of every file which meets the search criteria. Music, pictures, bookmarks, documents, etc can be found quickly and easily. Search can be made on any kind of build in volume, portable volume (pendrives, memory cards, USB drives), network drive (AFP, SMB, FTP), Thunderbolt or Firewire device (CD/DVD, external HDD, slave computer), etc.

Are you frustrated by the standard search utility? Try Super Finder!

This tool enables users to search their NTFS formatted harddrives within seconds. It uses the MFT (master file table) of NTFS to search for files very fast.

Make a change immediately in many files, add new text or new links in various webpages, change descriptions, key words and other metatags, repair inactive links, and redesign and optimize pages for search engines

Instant File Searcher Professional is a powerful search engine for files and folders stored on computer.

Ffind is a graphical file search application for Microsoft Windows, inspired by Unix "find" command-line utility. It is written in the C programming language using Windows API only.