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ProSwing - Baseball Swing Analysis App & AI Hitting Coach

ProSwing Swing Score™ · 5 free analyses

KNOW YOUR SWING.

Get your ProSwing Score™ and see exactly what helps your swing and what holds it back.

87

Strong Swing

See How It Works

Private by default. Analysis runs on your device.

1

Stand side-on to the plate.

2

Keep the camera at waist height.

3

Keep head and feet fully inside the frame.

Upload Swing

MP4, MOV, or WebM up to 100 MB. One swing per video. JPG, PNG, or WebP stills work too.

Best results: full body visible · side or slightly open view · one swing per video · good lighting. Processing stays on your device.

High-Speed Analysis

Frame-by-frame breakdown at 240fps equivalent

AI Baseball Hitting Coach

Automated biomechanical feedback powered by MediaPipe skeleton tracking

Pitch Swing Synchronization Software

Multi-dimensional tracking maps your bat path against incoming pitch profiles

How ProSwing Analyzes Your Swing

Professional-grade analysis based on biomechanical research

Core Swing Matrix
Load0–25%
Contact

The wind-up: weight shifts to the back leg, hands set, eyes lock on the pitcher.

Head StabilityWeight: 20%

Target: < 2 inches drift

Head Stability: Keeping your head still so your eyes track the pitch

Keep your head still like a camera on a tripod. Any drift blurs the picture. Keep your chin level and let your eyes do the work. You will pick up spin and location earlier.

Launch25–50%
Power

The trigger: stride begins, hips fire first, hands stay back to build power.

Hip-Shoulder SeparationWeight: 20%

Target: 45–55°

Swing Timing: Hips fire, then torso, then arms, then bat, in that order
Shoulder Turn: How far your upper body rotates against your hips
Hip Speed: How fast your hips rotate: top hitters peak near 600°/s

Power starts with this stretch. Feel your belt buckle rotate toward the pitcher while your hands stay back. That stretch across your core stores elastic energy that turns into bat speed. More separation means more bat speed.

Contact50–75%
Efficiency

The collision: bat meets ball, body position shapes the outcome.

Bat SpeedWeight: 20%

Target: 65–75+ mph

Attack Angle: Vertical bat path angle: optimal is +5° to +15°
Contact Chance: Your modeled chance of solid contact by pitch type
Sweet-Spot Contact: How squarely bat meets ball: higher means harder hits

At impact, drive your hands through the zone on a slightly upward plane that matches the pitch's downward angle. Meet the ball out front. That is where barrel control comes from.

Follow-Through75–100%
Power

The finish: full extension, balanced slowdown, clean energy into the ball.

Lead Arm AngleWeight: 15%

Target: 160–180°

Lead Arm Angle: Front arm extension at contact: optimal is 160–180°
Back Elbow Position: The 'Power L' shape of your trailing arm that keeps the swing compact

A long, balanced finish tells you the swing was efficient. If you fall off the plate or cut short, you leaked energy somewhere. Let the bat wrap naturally around your back. You feel it when the swing is right.

How the ProSwing Score™ Is Calculated

Each part of your swing scores 0 to 100. Your final score is a weighted mix: Timing 25 + Path 25 + Control 20 + Speed 20 + Finish 10 = 100. Timing and path count most because firing your hips in order and keeping a short path decide contact. Control and speed share the middle because a steady base plus bat speed sets up everything else. Finish counts least because the result is already decided by contact, though balance still matters.

A+95-100
A90-94
B80-89
C70-79
D60-69
F< 60
Example Score CalculationA - 92/100
Head Stability
9520%
Attack Angle
8815%
Hip-Shoulder Sep.
9220%
Bat Speed
9020%
Lead Arm Angle
9415%
Back Elbow
9110%

Compare Against MLB Benchmarks

See how your metrics stack up against MLB hitters

Ken Griffey Jr.

SEA · Historical Power/Speed

Historical Power+Speed
Bat Speed76.5 mph
Swing7.5-8.3 ft
Attack13°-16°
Squared38%

Historical reference. At 76.5 mph with a 7.5 to 8.3 ft path, his lefty stroke is a widely studied model.

Compare My Swing

Trea Turner

PHI · Speed-First Compact

Speed
Bat Speed70.8 mph
Swing5.8-6.6 ft
Attack7°-10°
Squared37.8%

Speed profile. At 70.8 mph with a 5.8 to 6.6 ft path, his quick hands and short path favor contact.

Compare My Swing

Amateur Baseline

REF · User Reference Profile

User Reference
Bat Speed52 mph
Swing6.5-7.8 ft
Attack4°-12°
Squared22%

Optimized for mobile-grade video capturing. Accounts for YOLOv8-pose 17-point structural constraints, motion blur, and perspective distortion.

Compare My Swing

Luis Arraez

SD · Contact Outlier

Contact
Bat Speed62.4 mph
Swing4.4-5.9 ft
Attack6°-8°
Squared43.7%

Contact baseline. At 62.4 mph with a 4.4 to 5.9 ft path, the shortest in the majors, he trades raw velocity for barrel control.

Compare My Swing

Ready to see your swing score?

Upload your video above

ProSwing: Phone Camera Baseball Swing Analyzer & Hitting Coach

ProSwing is a mobile 3D pose tracking app for baseball hitters that analyzes your swing with your phone camera. It needs no hardware bat sensors, tracks your full-body movement, and finds flaws with matching corrective drills, all from your phone camera.

How ProSwing Analyzes Your Baseball Swing (No Hardware Required)Technical detail (tap to expand). Your result comes first.

How ProSwing Analyzes Your Baseball Swing

1. Mobile Capture: High-FPS Phone Camera & 3D Pose Detection

Record your swing with any smartphone camera. ProSwing uses MediaPipe Pose Detection to track 33 body joint landmarks in real time at 30+ FPS via WebAssembly. No special lighting, tripods, or calibration needed. Just point your phone and swing.

2. Form Check: Hip-to-Shoulder Timing & Load-to-Impact Breakdown

The engine reads your swing timing, checking that power moves from hips through torso to hands in order. It records your hip-and-shoulder turn, your hip speed with smoothing across frames, and your attack angle at contact.

3. Personalization: Automated Fault Detection & Corrective Drills

ProSwing automatically spots swing flaws (casting, early extension, sway, lunging, and hand drop) and matches each with a video drill. Your phone becomes your hitting coach, using swing reads calibrated against MLB average Statcast data.

Core Hitting Metrics & Mechanical Flaws TrackedSwing Score, Bat Speed, Bat Path, Separation, Contact (tap to expand).

Core Hitting Metrics

Stance, Load, and Hip-Shoulder Separation

Tracks your setup, load timing, and the gap between your hip turn and shoulder turn (the "X-Factor" that drives power). Top hitters hold 40–55° of separation at foot plant.

Bat Path, Attack Angle, and Time to Contact

Measures the vertical angle of your bat path through the hitting zone (optimal: +5° to +15°), swing plane consistency, and the time from launch to contact. Extra Swing Length shows how many extra feet your path carries past the shortest route.

Weight Transfer, Posture Stability, and Follow-Through

Evaluates how efficiently your weight shifts from back to front leg, maintains upright posture through rotation, and finishes with balanced follow-through. Tracks lead arm extension angle (optimal: 160–180°) and back elbow "Power L" position.

ProSwing vs. Bat Knob Sensors vs. VR Training SystemsWhy phone-only analysis (tap to expand).

ProSwing vs Sensors vs VR

Feature / CapabilityProSwingHardware Bat Sensors
(e.g., Blast Motion)		Standard Video Apps
(e.g., V1 Sports)
Required HardwareSmartphone OnlyKnob Attachment ($150+)Smartphone Only
Setup TimeUnder 10 SecondsSensor Pairing RequiredManual Video Capture
Body Biomechanics TrackingFull-Body 3D Skeleton (Hips, Shoulders, Spine)Bat Metrics OnlyManual Drawing Lines Only
Fault IdentificationAutomated (Casting, Sway, Early Extension)Out-of-Range Metric AlertManual Coach Inspection
Instant Drill MatchingYes (AI-Assigned)Basic Video ListNo

ProSwing Training Hub

You train the swing in order inside the ProSwing Training Hub. You anchor the rear leg, you swivel the barrel, you link the sequence across nine short lessons with at-home drills for ages 8 and up.

Open the ProSwing Training Hub

Frequently Asked Questions About AI Baseball Swing Analysis

Do I need a sensor attached to my baseball bat to use ProSwing?+
No. ProSwing uses your smartphone camera and computer vision to analyze your baseball swing. It tracks 33 body joint landmarks in 3D without any bat knob sensors, launch monitors, or external hardware. Simply record your swing with your phone camera and the AI handles the rest.
Which mechanical flaws in a baseball swing can ProSwing detect?+
ProSwing automatically detects and matches corrective drills for: casting (early arm extension), early extension (premature hip thrust toward the plate), sway (lateral weight shift away from target), lunging (weight transfers too early), hand drop (bat path drops below optimal plane), and poor hip-shoulder separation. Each flaw is flagged with severity and paired with a personalized video drill.
How does the 3D pose tracking work without sensors?+
ProSwing uses MediaPipe Pose Detection to track 33 body joints in real time at 30+ frames per second. It records your shoulders, elbows, wrists, hips, knees, and ankles through every frame of your swing. From those points it reads your swing timing, checking that power moves from hips through torso to hands in order.
What baseball swing metrics does ProSwing analyze?+
ProSwing tracks 12 key swing reads: stance, load timing, hip-shoulder separation, bat path, attack angle, time to contact, weight shift, posture, follow-through balance, hip speed, bat speed, and hand path. Each read is compared against MLB-level benchmarks.
Is ProSwing free to use?+
Yes. ProSwing is free to download and includes 5 free swing analyses. No subscription is required to get started. The app runs entirely in your browser or on your mobile device with zero data uploads to external servers.