Everything is a free and open source file finding application that's advanced, minimalistic and portable.
Here are some screenshots to illustrate the features and user interface of this application:
Get instant file search results using this and undemanding utility with advanced filters and sorting modes. Screenshot of Everything - 600px · 549pxCustomize settings during setup. Screenshot of Everything - 512px · 498px
grepWin
SearchMyFiles
dnGREP
Everything
Agent Ransack