Official specs from Steam

Cookie Clicker system requirements

Minimum and recommended PC specs as listed by the developer on Steam. Native macOS version available.

Cookie Clicker release infoSteam page Check other games

Minimum

OS *Microsoft® Windows Server 2008, Windows 7, or Windows 8 Classic
Processor2.33GHz or faster x86-compatible processor, or Intel Atom™ 1.6GHz or faster processor for netbook class devices
Memory512 MB RAM
Storage350 MB available space

macOS minimum

OSMac OS X v11, and above
ProcessorApple M1 or Intel Core M
Memory512 MB RAM
Storage450 MB available space

FAQ

How much RAM does Cookie Clicker need?

Cookie Clicker needs 512 MB RAM at minimum.

How big is Cookie Clicker?

Cookie Clicker requires 350 MB available space.

Does Cookie Clicker run on Mac or Steam Deck/Linux?

Yes, there is a native macOS version. There is no native Linux build (Proton compatibility may vary).