FormCheckerAI
FormCheckerAI · AI Assistant
FormCheckerAI is a web app that runs AI workout form analysis on a short video. As a workout form checker it tracks 33 body landmarks and returns specific corrections for safer lifts.
About FormCheckerAI
What Is FormCheckerAI
FormChecker AI is a browser-based tool that runs strength-training form analysis on your own video. You record a quick clip of a lift, the app maps it against 33 body landmarks, and it comes back with joint angles and specific fixes. The point is to catch the small errors that lead to stalled progress or injury before they become habits.
Most people lift without a coach watching. A phone on the floor records everything and tells you nothing, and filming for a friend to review runs into timing and privacy. This form correction app takes that raw footage and turns it into exercise form feedback you can act on between sets. It supports more than 30 movements, from squats and deadlifts to pushups and lunges. Think of it as a weightlifting form app that happens to run in your browser.
Two limits are worth knowing early. It works from video, so lighting and camera angle affect what the analysis can see. And it covers strength training, not conditioning, cardio or mobility work.
Getting Started
- Create an account and use your 2 free credits to try an analysis
- Record about 15 seconds of the exercise on your phone or laptop, framed so your whole body is visible
- Upload the clip and let the AI process your movement patterns, joint angles and weight distribution
- Read the personalized tips, add custom instructions for your own goals, then re-record to compare your form over time
Product Information
A quick look at FormCheckerAI's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Home lifters training without a coach
- Beginners learning the basic lifts
- Intermediate and advanced lifters chasing form tweaks
- Athletes returning from injury
Tasks
- Squat form analysis and deadlift form checks
- Exercise-specific coaching
- Between-set form review
- Comparing form over time
- Learning new movements
Scenarios
- Training at home alone
- A working set that feels off
- Coming back from a layoff
- Preparing for a meet or a heavy phase
- Learning from a remote program
Key features
Movement Tracking With 33 Body Landmarks
The AI fitness coach side of FormCheckerAI is built on pose detection that maps 33 landmarks on your body. From there it measures joint angles, movement patterns and weight distribution. That level of detail is what lets the app comment on a knee cave or a shifting bar path rather than just counting reps, and it's the technical core the rest of the product runs on.
Feedback Tied to Your Own Movement
The corrections come from your clip, not a generic checklist. FormCheckerAI reads your specific pattern and returns tips aimed at what you actually did wrong, so a lifter whose hips shoot up early gets a different note than one who rounds their back. The free tier gives standard feedback, and the Pro tier opens the detailed version.
Fast Turnaround From a Short Clip
You don't need a long recording or a full session. About 15 seconds of video is enough for a complete analysis, and the app returns results quickly. That matters because form feedback is only useful before the next set, not the next day, and it makes the tool practical to use mid-workout.
Custom Instructions Per Exercise
You can attach your own notes and instructions to each exercise. Tell the app what you're working on, and the feedback is shaped around those goals. It's the difference between a general form review and coaching that picks up the thread from your last session.
Support for 30+ Strength Exercises
The AI is trained on the common strength movements, from squats, deadlifts and bench press to pushups, lunges and rows. Because the exercise library covers the lifts most people actually train, you're not limited to a single movement or forced to improvise a name that doesn't fit.
Private Processing
Videos are processed securely and not shared. For anyone uneasy about uploading footage of themselves to a random site, that's the reassurance that decides whether they use the tool at all, and it's a fair question to ask before you send a clip.
Pros and cons
Pros
- Two free credits let you test the analysis before paying anything
- Feedback is specific to your clip rather than a generic list you could find anywhere
- The 15-second format makes it practical to check form between sets
- Covers 30+ strength movements, so it stays useful across a whole program
- Custom instructions let you steer the feedback toward your own goals
Cons
- Results depend on video quality, so poor lighting or a bad camera angle weakens what the app can see
- Limited to strength training, so it won't help with cardio, mobility or conditioning work
- Credits are consumed per analysis, which adds up if you want feedback on every set
- There's no API for developers or coaches who want to plug the analysis into their own tools
Frequently asked questions
FormCheckerAI analyzes strength-training form from a short video you record. It tracks 33 body landmarks to measure joint angles, movement patterns and weight distribution, then returns specific corrections. It covers more than 30 exercises, from squats and deadlifts to pushups and lunges.
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