Free trial
No trial is needed: the whole tool is free with no account or sign-up.
Learn moreSwingMaster AI
Free browser-based golf swing analysis with drawing, angles and AI notes
Beginner
What is SwingMaster AI?
SwingMaster AI is a free, no-sign-up web tool for golf swing review. Upload a phone video, step through frames, draw and measure angles, then request a Google Gemini coaching note on any paused frame.
SwingMaster AI is a browser-based golf swing analysis tool that lets players review a phone-shot video without creating an account. A clip is dropped onto the page, and the swing can then be studied frame by frame, annotated, measured and passed to an AI coach for a written read on what to fix. The toolset mirrors what a coach would use on a tablet. Playback steps through the swing at 30 frames per second and slows down to a quarter of normal speed, or speeds up to double, which helps when judging tempo and the transition from backswing to downswing. Lines, circles and freehand marks can be drawn over the footage to check posture and shaft plane, and a three-point protractor measures angles such as spine tilt, hip, shaft and elbow. Pan and zoom make it possible to push in on the grip or pull back to see the whole setup. The AI element is a coaching note generated with Google Gemini. When the video is paused on a chosen frame, the tool returns a plain-English assessment aimed at posture, grip, plane and alignment, and suggests what to change first. The site describes the feedback as a thinking partner to be used alongside a professional rather than a replacement for one. Sample swings from well-known tour players are available for trying the interface before uploading personal footage. Privacy is handled by keeping the video in the browser. Only a single still frame is sent for AI feedback, never the whole file. The site states that every feature is free, with no analysis limit, credit card or paid tier. SwingMaster AI suits recreational golfers, junior players and coaches who want quick self-review between lessons. Compared with dedicated paid swing apps, it trades depth and account-based tracking for zero friction and no cost. Players wanting long-term progress history, or club and ball data, will need other tools, but for a fast visual check of a single swing it covers the essentials.
How do you use SwingMaster AI?
1Open the site and add a video
Go to the homepage and drop a phone-shot swing clip onto the upload area, or click to choose a file. MP4, MOV and WebM are supported.2Step through the swing
Use frame-by-frame control and the 0.25x to 2x speed setting to find address, top of backswing and impact.3Mark posture and plane
Draw lines, circles or freehand marks over the footage to check posture and shaft plane. Pan and zoom to inspect the grip or full stance.4Measure key angles
Use the three-point protractor to measure spine, hip, shaft and elbow angles on a paused frame.5Ask the AI coach
Pause on the frame you want reviewed and request a coaching note. Treat the result as a prompt for what to work on first.
Pros and cons
Pros
- No account, email or credit card needed, so analysis starts within seconds of dropping a videoAI
- Full video stays in the browser; only one still frame goes to the AI when feedback is requestedAI
- Frame stepping, slow motion, drawing tools and a three-point angle protractor cover core coaching checksAI
- Plain-English AI notes on posture, grip, plane and alignment give a clear first thing to changeAI
- Accepts common phone formats including MP4, MOV, WebM and HEVC, plus sample pro swings to tryAI
Cons
- AI feedback comes from a single paused frame, so it cannot judge motion or sequencing across the whole swingAI
- The site itself says the advice is not a replacement for a professional coachAI
- No stated account system, so there is no saved history for tracking progress over timeAI
- Angle measurement and drawing are manual, so accuracy depends on how carefully the user places pointsAI
- No launch monitor, ball flight or club data; analysis is visual onlyAI
How much does SwingMaster AI cost?
Pricing
The site states every feature is free, with no analysis limit, no credit card and no paid tier.
Learn moreFeatures
Frame-by-frame playback at 30fps, variable speed from 0.25x to 2x, line, circle and freehand drawing, three-point angle measurement, pan and zoom, and AI coaching notes from Google Gemini on any paused frame.
Frequently asked questions about SwingMaster AI
How much does SwingMaster AI cost?
The site states every feature is free, with no analysis limit, no credit card and no paid tier.Does SwingMaster AI offer a free trial?
No trial is needed: the whole tool is free with no account or sign-up.How do you use SwingMaster AI?
The walkthrough on this page covers 5 steps: 1. Open the site and add a video 2. Step through the swing 3. Mark posture and plane 4. Measure key angles 5. Ask the AI coach.What platforms does SwingMaster AI support?
SwingMaster AI is available on Web App.What are the limitations of SwingMaster AI?
AI feedback comes from a single paused frame, so it cannot judge motion or sequencing across the whole swing. The site itself says the advice is not a replacement for a professional coach. No stated account system, so there is no saved history for tracking progress over time.
