Squat Form Check
Wondering if your squat is solid? Prop up your phone — GOODREPS watches your knee angle (hip → knee → ankle) live and scores every rep while you train your quads and glutes, with hamstrings and core assisting. Free in your browser today; coming to Google Play and the App Store.
Coming to Google Play & the App Store▶ Try The Form Check
LIVEHOW TO DO A PROPER SQUAT
Setup Stand facing the camera, feet shoulder-width, toes slightly out.
- Push your hips back and bend your knees, lowering until your thighs break parallel.
- Keep your chest up and your weight in your heels.
- Drive up through your heels to stand tall.
Same sheet as the ⓘ panel in the app — animated demo included.
THREE STEPS TO A SCORED SQUAT
Prop your phone and get in frame
Phone at roughly torso height, stand facing the camera. A quick camera test checks lighting, distance, and angle before you start.
The camera locks a 17-point skeleton on you
GOODREPS measures your knee angle (hip → knee → ankle) on-device — no wearables. Bodyweight, goblet, or barbell — log weights and the app tracks your PRs.
Move — and watch the form bar
The bar fills from ~160° toward ~95° at the bottom. Cut range short and it tells you; full ROM is what counts.
WHAT THE CAMERA WATCHES
- Your knee angle, live — from roughly 160° standing tall down toward 95° at depth. The rep only banks when you actually get low enough.
- Your personal range of motion — after 3 clean reps the counter calibrates its thresholds to how you move, so it stays honest without being unfair.
- With Pro's depth camera, where your hips sit relative to your knees at the bottom — stop high and you'll hear "Get lower — break parallel."
COMMON SQUAT MISTAKES
Stopping above parallel
The most common miss — quarter squats feel productive but shortchange your quads and glutes. GoodReps catches this one automatically: no depth, no rep.
Knees caving inward
Under fatigue the knees drift toward each other. Think "spread the floor" and keep knees tracking over toes.
Heels lifting off the floor
Weight creeping onto your toes tips you forward. Keep your weight in your heels and drive up through them.
Chest collapsing forward
A folded torso turns a squat into a bad good-morning. Keep your chest up and eyes forward through the whole rep.
PRIVATE BY DESIGN
Pose detection runs in your browser via TensorFlow.js. Camera frames are analyzed in real time and immediately discarded — nothing is recorded, nothing leaves your phone, and we never see them. Sign-in is optional; skip it and everything stays local.
QUESTIONS, ANSWERED
Do I need any equipment to check my squat form?
Just your phone. Bodyweight squats work out of the box, and if you squat with a barbell or dumbbells you can log the weight and track PRs. No wearables or sensors.
Does it work in a home gym or low light?
Run the built-in camera test first — it checks your lighting, distance, and angle with live green checks before you start. If a rep still slips through, manual counting is always one tap away.
Is my camera feed uploaded anywhere?
No. Pose detection runs entirely on your phone, in your browser. Frames are analyzed in real time and immediately discarded — nothing is recorded, nothing is uploaded.
RELATED GUIDES
Free forever — camera counting for all 60 exercises, no account needed. Pro (voice coaching, programs, depth-camera form checks) is $7/mo, $49/yr, or $99 once. No ads, ever.