ripgrep - ripgrep combines the usability of The Silver Searcher with the raw speed of grep.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
AstroGrep - AstroGrep is A Microsoft Windows GUI File Searching (grep) utility.
JREPL.BAT - Performs a global regular expression search and replace operation on each line of ASCII input from...
dnGREP - dnGrep allows you to search across files with easy-to-read results.
The Silver Searcher - A code searching tool similar to ack, with a focus on speed.