Aim Trainer is a free CS2 aim training site that runs entirely in your browser — no download, no signup, no install. Warm up your flick shots, tracking and spray control in realistic 3D range scenarios before you queue for Premier or Faceit. You could go the Steam Workshop route — aim_botz, the classic Fast Aim/Reflex map, a fresh community pick every month — but every one of those drills runs right here with zero setup.
The sensitivity system uses the exact CS2 formula (m_yaw 0.022): enter your in-game sensitivity and DPI and every 360° turn matches your CS2 setup one-to-one, with eDPI and cm/360 shown live. Spray Control recreates the AK-47 recoil pattern so you can learn to pull down and compensate, while Gridshot, Precision, Flick and Tracking build raw mouse control, target switching and reaction time. Precision shrinks targets down to dot size, Tracking runs against moving bots, and the flick work doubles as deagle one-tap practice. Personal bests are saved locally for every mode.