OP Auto Clicker vs Speed Auto Clicker

OP Auto Clicker vs Speed Auto Clicker — what's the difference?

OP Auto Clicker is a 512 KB open-source (MIT) auto clicker with a hard-advertised max of 1,000 CPS. Speed Auto Clicker is a ~1.5 MB freeware clicker that advertises up to 50,000 CPS — a number that sounds impressive but is impossible to actually deliver. Both tools use the same Windows SendInput API for click dispatch. In real-world browser CPS tests, both cap around 100–120 CPS because that's where mouse debounce filters and Windows event queue processing stop registering additional clicks. The 50,000 CPS number Speed Auto Clicker advertises is a theoretical software-side rate that no downstream system (browser, game, OS) can actually receive. Practical difference: identical CPS performance, OP is 3× smaller, OP is open source, Speed Auto Clicker has a burst mode that fires N clicks in immediate succession (fun for pranks). For any real use case — gaming, idle games, form filling — both perform identically. OP wins on transparency, size, and license.

Speed Auto Clicker's 50,000 CPS figure is the theoretical rate at which its internal click-dispatch loop runs. In reality, three downstream bottlenecks cap actual clicks received: (1) mouse debounce filters in Windows (5–10 ms per switch state change) cap raw event registration around 100–200 CPS; (2) the Windows event queue batches high-frequency events, dropping duplicates within the same frame; (3) the receiving application (browser, game) processes clicks at its own frame rate, typically 60–144 Hz. Result: whether the auto clicker fires 200 CPS or 50,000 CPS internally, the game or browser only sees ~100–120 clicks per second. This is verifiable with any clicker test — Speed Auto Clicker at "50,000 CPS" scores identically to OP Auto Clicker at 10 ms interval.