Average What is F3 in keyboard? By DIY Posted on November 4, 2022 The F3 key is a function key found at the top of almost all computer keyboards. The key is often used to open the find or search feature of a program or operating system. Related Topics: Most Popular How To How to Record Video on Windows 10 Linux How to Fix: WiFi Connected But No Internet Access Android How To Remove A Virus From An Android Phone How To How to Clean Hacked WordPress site Windows Epson Error Code 0x97 Windows How to run Canon LaserBase MF3110 on Win10 64bit