Free AI Golf Swing Analyzer
Upload any swing video and watch AI body tracking analyze every frame — tempo, head movement, hip rotation, knee flex, swing speed, and more. Pair it with launch monitor data for cause-and-effect coaching. No signup, runs entirely in your browser.
Upload Your Swing
We’re in public beta — use it, share feedback, have fun.
Pro Tips for Best Results
Quality input means quality analysis. A few small choices when you record will dramatically improve what we can show you.
Quality takes time. Putting in the reps to capture a clean swing once will save you running through it five times.
The Launch Line and ball tracking are new features in active development. Spot something off? Got an idea? We’re knee-deep in this build — bug reports and screenshots help us dial it in fast. Don’t be too picky, this is beta!
Send feedback →Checking your video
Getting started…
Loading AI model…
Add your launch monitor numbers
Enter as much or as little as you have — even just one field is helpful. Got only ball speed? Just enter that. We’ll show whatever you provide alongside the body tracking metrics.
Swing Insights
Computed from your body tracking — observations to consider, not gospel.
What we’re seeing
Pattern observations drawn from your body tracking and any launch monitor data you provided. Listed by significance — the most notable patterns first. Hedged language is intentional: golf swings have many causes for any given outcome, and we infer rather than measure.
Help us dial it in
Launch line, ball tracking, and body tracking are still being tuned. Spot something off? Got a video that broke it? Want to suggest a feature? Send a screenshot and a quick note — we read every email.
Send feedback →33 Body Points
Advanced AI tracks shoulders, hips, elbows, knees and more across every frame of your swing.
100% Private
Your video never leaves your device. All AI processing runs locally in your browser. Nothing uploaded.
Works Everywhere
iPhone, Android, laptop. No app to install, no account, no subscription. Free, forever.
Get the Best Swing Analysis
A few quick guidelines for the cleanest AI tracking from your phone. Five minutes of setup is the difference between a noisy result and a useful one.
Phone Settings
Record at 1080p, 120fps in regular Record Video mode — not slo-mo. Browsers can’t read iOS slo-mo files at native frame rate. On iPhone: Settings → Camera → Record Video → 1080p HD at 120 fps. Higher fps unlocks accurate swing speed measurement.
Hands at Center
Frame the shot so your hands sit at the vertical center of the screen. Fill 60-70% of the frame height. Leave some headroom above so the top of your backswing isn’t cut off.
Lighting & Background
Bright, even light works best — outdoor open shade is ideal. Plain backgrounds (sky, fairway, indoor wall) help the AI lock onto your body. Avoid backlight and busy backgrounds.
Camera Angle
Face-on (chest height, in front of you) shows tempo, head movement, and balance. Down-the-line (behind you on the target line, hand height) shows swing plane and posture.
Steady Camera
Use a tripod, phone stand, or solid surface. Don’t hand-hold and don’t zoom during the swing. Camera shake adds noise to every measurement the AI tries to make.
Keep Clips Short
5-30 seconds is the sweet spot. Trim before uploading — start a half-second before address, end a half-second after finish. Shorter clips analyze faster and give cleaner peak detection at impact.
How the AI Swing Analyzer Works
Three steps. No app to install. No account to create. Your video stays on your phone.
Record Your Swing
Use your phone in face-on or down-the-line view, ideally at 120fps for the best tracking. Make sure your full body is in the frame. 5-30 seconds is plenty.
Upload to the Tool
Tap “Choose Video” and pick your clip. The AI runs a quality check first — framing, lighting, frame rate, camera angle — then analyzes 33 body landmarks across every frame. Nothing uploads to a server.
Study Your Insights
Get tempo ratio, head movement, hip rotation, knee flex, and swing speed estimates with Tour benchmarks. Save the analysis to your phone or computer to share. Got launch monitor data? Toggle it on for ball flight metrics alongside your body tracking.
What Body Tracking Actually Reveals
Most golfers have never seen their own swing in slow motion with their body positions clearly mapped. The AI overlay shows you things that are nearly impossible to see at full speed:
Tempo ratio — backswing-to-downswing timing benchmarked against Tour data. Head movement — lateral and vertical drift through the swing. Hip rotation at impact compared to Tour standards. Knee flex retention — an early-extension red flag. Swing speed estimates with launch-monitor calibration in progress. Spine angle changes from address through impact.
This is the same body-tracking foundation found inside premium golf swing apps — the difference is that here, every metric tells you what it’s seeing, what the Tour benchmark is, and what to consider working on. And when conditions aren’t right (low frame rate, wrong angle), we don’t make up numbers — we lock the metric and tell you exactly how to unlock it.
Beyond the Free Tool
Body tracking is a starting point. Here’s what serious players use to dial in their swing, ball flight, and home practice setup.
Best Launch Monitors of 2026
Hands-on testing and side-by-side comparisons. Find the right monitor for your budget — from $500 portable units to $25k commercial systems. Real swings, real data.
See our top picks → Home SimsBuild a Custom Golf Sim
Jay has built and tested 9 real garage simulator setups — from a $500 starter to all-out luxury bays. See what works for your space and budget, and email anytime for free planning.
See real builds → Subscriber DealsExclusive Discounts
Active codes on Uneekor, Foresight, FlightScope, SkyTrak, Mevo, Square Golf and more — Jay’s verified affiliate codes for the gear he actually tests. Email him for the current code on whatever you’re shopping for.
Email Jay for codes →Frequently Asked Questions
Everything golfers want to know about the free swing analyzer
Is this golf swing analyzer really free?
Yes — completely free, with no signup, email collection, watermarked exports behind a paywall, or trial period. The tool runs entirely in your browser using advanced AI body-tracking technology. There’s no premium tier and nothing locked behind a subscription. We’re currently in public beta and improving it every week.
Does it work on iPhone and Android?
Yes. The tool works on any modern smartphone or computer browser — iPhone Safari, Android Chrome, desktop Chrome, Edge, Firefox, and Safari on Mac. No app to download. Just open the page and upload.
What happens to my swing video? Is it private?
Your video never leaves your device. All AI processing happens locally inside your browser using your phone or computer’s own processing power. We don’t see it, store it, or upload it anywhere. When you close the tab, the video is gone.
What does the AI actually track and measure?
33 body landmarks across every frame — shoulders, elbows, wrists, hands, hips, knees, ankles, feet, head, and face. Connecting lines visualize your full kinetic chain.
From that tracking, we compute swing metrics with Tour benchmarks: tempo ratio (backswing : downswing), head movement (lateral and vertical), hip rotation at impact, knee flex retention, backswing length, and swing speed estimates. Each metric tells you the value, the Tour standard, and what your number suggests.
When conditions aren’t right for a measurement (e.g. low frame rate for speed), we lock the metric instead of guessing — and tell you exactly how to unlock it.
Will it track the golf club too?
Body tracking is our current priority and we’re sharpening it every release — tracking stabilization, foot anchoring, swing speed calibration against real launch monitor data.
Club tracking is on our roadmap. Reliable shaft and clubface tracking at consumer phone frame rates (where the clubhead moves over 100 mph and motion blur is heavy) is a hard, mostly unsolved problem — that’s where multi-camera and launch monitor systems earn their cost. But we’re actively exploring approaches and will share progress as it happens. Stay tuned.
What’s the best video angle for analysis?
Two angles work best:
Face-on: Camera placed directly in front of you, perpendicular to your target line, at chest height. Best for seeing tempo, weight shift, head movement, and arm positions. Required for swing speed measurement.
Down-the-line: Camera placed behind you on your target line, at hand height, lens centered on your hands at address. Best for seeing swing plane, posture, and shaft angle.
Make sure your full body is in the frame, including the top of your backswing and your feet. Good lighting helps a lot.
Is there a video length limit?
Yes — 30 seconds maximum. Most users land at 5-15 seconds, which analyzes faster and gives the cleanest peak detection. If your clip is longer, trim it in your phone’s Photos app first (iPhone Photos and Google Photos both have built-in trimmers).
Can I save or share the analyzed video?
Yes — after analysis completes, you’ll see a Save to my Phone button on mobile (or Download to my Computer on desktop) that records a ~20 second clip with all the AI overlays baked in: skeleton lines, swing metrics HUD, and Golf Swing Lens branding.
On mobile, the share sheet opens with options to save to your camera roll or send straight to Instagram, TikTok, etc. On desktop, it downloads to your computer. Tag @golfsimulatorvideos if you post it!
Can I add my launch monitor data?
Yes. Toggle Launch Monitor Mode below the club picker before uploading. After the quality check, you’ll be prompted for ball speed, launch angle, spin rate, carry distance, and smash factor — all optional, fill in whatever your launch monitor gave you.
Works with any launch monitor: Garmin R10, R50, Mevo, Mevo+, SkyTrak, Foresight GCQuad, GC3, Trackman, Rapsodo MLM2Pro, Square Golf, Uneekor, ProTee, or any other. The outcome metrics show alongside your body tracking so you can see cause and effect.
New in v1.8: if you also enter launch direction and spin axis (or side spin in rpm), the tool back-calculates estimated Club Path and Face Angle — the delivery numbers that only premium launch monitors (GCQuad, Trackman) measure directly. Math is sourced from peer-reviewed PING engineering research and Trackman’s D-Plane parameter, not blog rules-of-thumb.
How do I check where the ball is hitting on my clubface?
The cheapest trick is Dr. Scholl’s Odor Destroyers Foot Powder Spray. Spray a thin, even coat onto your clubface before the swing. The ball wipes through the powder and leaves a clean mark showing the exact impact point. One light coat is good for one swing; reapply between shots. A small can lasts months of practice sessions and runs under $10 at most drugstores.
Impact tape (KBS, Birdie Ball, Maltby, etc.) is the alternative — cleaner but costs more per use. Use whichever feels right.
Why it matters: on driver, fairway woods, and hybrids, off-center contact (toe or heel) tilts the ball’s spin axis through gear effect — independent of where the face was actually pointed. As Trackman puts it: “The spin axis tilt produced by the gear effect outweighs the tilt from the face to path.” If our Estimated Club Path or Estimated Face Angle numbers look off, check your strike location first. Mishits read as wildly open or closed face angles when really the face was square and the ball just caught the toe.
Iron and wedge strikes are much less affected by gear effect because of lower ball speed and the club’s shallower center of gravity. The estimates are most reliable on iron and wedge shots, and most caveat-worthy on driver and fairway woods.
How is this different from paid swing apps?
Most paid analyzers show confident-looking numbers regardless of whether your video was good enough to measure them. We don’t. When the frame rate or camera angle isn’t right for a measurement, we lock the metric and tell you exactly how to fix it — instead of feeding you a fabricated number.
We’re also actively calibrating swing speed against real launch monitor data (Foresight GCQuad ground-truth) to publish verified accuracy claims, and we let you pair the analyzer with your own launch monitor for outcome data alongside body metrics. That combination — honest body tracking + your launch monitor data + transparent calibration — isn’t something the paid apps offer.
Do I need a launch monitor or simulator to benefit?
No. This is just a video analysis tool — record any swing, anywhere. You’ll get tempo, head movement, hip rotation, swing speed estimates, and the rest of the body metrics from a phone video alone.
That said, if you have a launch monitor, toggling Launch Monitor Mode on adds the outcome side of the picture — ball speed, launch angle, spin rate, smash factor — for full cause-and-effect coaching. We’ve personally tested most launch monitors on the Golf Simulator Videos YouTube channel and offer free planning help if you’re shopping for one.
Build Your Game From Home
Thousands of golfers use Golf Simulator Videos to test launch monitors, plan home builds, and find the right gear at the right price. Whether you’re shopping for a $500 monitor or a $25k commercial sim, you’ll find honest reviews and real-world testing here.
More Frequently Asked Questions
Additional questions about the free golf swing analyzer
What is tempo ratio in a golf swing — and what’s a good number?
Tempo ratio is the relationship between your backswing time and your downswing time. Tour professionals average close to a 3:1 ratio — the backswing takes roughly three times as long as the downswing. Most amateur golfers rush the transition and land closer to 2:1, producing an over-the-top path and inconsistent contact. A ratio between 2.7:1 and 3.2:1 is generally the target range for consistent ball striking. The analyzer measures your ratio automatically from the video and benchmarks it against Tour data.
How accurate is the swing analysis?
Accuracy depends heavily on video quality. With a face-on view at 120fps, good lighting, and your full body in the frame, spine angle and head movement measurements are typically within 2–3 degrees of dedicated tracking systems. Swing speed is actively calibrated against Foresight GCQuad ground-truth data and improves with each release. When conditions aren’t sufficient for an accurate measurement, the analyzer locks the metric and tells you exactly why — rather than showing a confident-looking number that isn’t trustworthy. A locked metric is honest feedback, not a broken feature.
Can I compare two swings side by side?
Yes. After your first analysis completes, hit Compare Swings to upload a second clip. Both swings play back in a stacked view with independent scrubbers, synchronized position jump buttons (Address, Takeaway, Top, Impact, Finish), and all overlays active on both videos. Useful for before/after comparisons, same swing with different clubs, or comparing with a playing partner. Works on both mobile and desktop.
Does it work outdoors at a driving range or golf course?
Yes — outdoor shots work well. Overcast light is actually ideal because it’s even and shadow-free. Watch for strong backlighting (sun directly behind you), make sure your clothing contrasts with the background, and aim for a clean backdrop — sky, fairway, or a practice net. A range bay with a net behind you is usually a clean setup. Moving grass or trees in the background can add noise to the tracking.
How long does the analysis take?
Most clips finish in 30–90 seconds depending on clip length, frame rate, and your device’s processing speed. A trimmed 5–10 second clip at 120fps on a recent iPhone typically completes in under 45 seconds. Longer clips near the 30-second limit, or older devices, may take 2–3 minutes. All processing runs locally on your device — there’s no server queue. If analysis appears stuck past 5 minutes, try a hard refresh and re-upload.
Why is my swing speed showing as locked or “–“?
Swing speed measurement requires a face-on camera angle and at least 60fps — 120fps gives the most accurate result. If the AI detects a down-the-line angle, insufficient frame rate, excessive camera shake, or hands not clearly visible in the frame, it locks the metric rather than display a fabricated number. To unlock it: re-record face-on at 120fps (iPhone: Settings → Camera → Record Video → 1080p HD at 120 fps), use a stable tripod, and make sure your hands sit at the vertical center of the frame.
How do I film my golf swing at home in a garage or simulator bay?
Set your phone at hip height on a tripod or sturdy surface, positioned directly in front of you perpendicular to your target line (face-on view). Your body should fill about 70–80% of the frame with some headroom for the top of the backswing. In a simulator bay, the hitting area lighting is usually clean enough — the screen behind you is fine as a background as long as it isn’t brighter than your body. Film at 1080p 120fps in your phone’s standard camera app (not slo-mo mode). On iPhone: Settings → Camera → Record Video → 1080p HD at 120 fps. Trim to 5–15 seconds before uploading.
