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✦ Free · Browser-based · No account required

Biomechanics tools
for sports science

A growing suite of free, browser-based tools for undergraduate and postgraduate students, researchers, and sports science practitioners. Everything runs locally in your browser — no upload, no subscription.

Start analysing video Browse all tools
Video motion analysis Force plate analysis Kinematics Gait analysis Teaching tools

All tools

Each tool is self-contained, works offline after loading, and runs entirely in your browser.

Data Explorer & Dashboard
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Data Dashboard
Upload any CSV or Excel file and explore your data. Distribution, cross-tab, scatter, group compare, time series, and bin profile queries. Build a configurable tile dashboard, add text and image tiles, and export to PDF. Save templates to auto-populate dashboards from the same data format every session.
New • Any CSV data
biomex.studio/explore →
Video Analysis
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Analyse
Frame-by-frame video analysis with markers, angles, distances, auto-tracking, kinematics, and dual video comparison.
Core tool
biomex.studio/analyse →
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Kinematics
Full-page position, velocity, and acceleration viewer with Butterworth filtering and Winter (2009) normative ROM reference bands.
Links from Analyse
biomex.studio/kinematics →
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Angle-Angle
Joint coordination plots with colour-by-time, cycle detection and overlay, coupling angle statistics.
Links from Analyse
biomex.studio/angle →
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Compare Sessions
Overlay kinematics from two session files. Pre/post intervention, left/right limb, or athlete comparison with difference trace and metrics table.
Practitioner
biomex.studio/compare →
Performance & Force
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Jump Analyser
Force plate jump analysis. CMJ, SJ, and drop jumps. Auto-detects take-off and landing, computes height, RSI, impulse, and peak force.
Force plate
biomex.studio/jump →
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Sprint Mechanics
Enter split times from timing gates or paste a velocity series. Computes split velocity, peak speed, acceleration, and flying-phase metrics.
S&C · Track
biomex.studio/sprint →
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Time Normalise
Resample signals to 0–100% cycle time. Overlay cycles, mean ± SD, and Winter (2009) normative gait reference bands.
Gait · EMG · Force
biomex.studio/normalise →
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GPS Session Analyser
Upload GPS data from Catapult, STATSports, or any device. Trim by time, compute speed bands, sprint efforts, peak acceleration and deceleration, and visualise the GPS track.
Team sport · GPS · Load
biomex.studio/gps →
Signal Processing
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Signal Processing
Filter, rectify, RMS envelope, differentiate, integrate, and FFT spectrum. Compare before and after. Designed for EMG, force, and accelerometer data.
EMG · Force · Research
biomex.studio/signal →
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IMU / Step Detection
Upload accelerometer data to detect footstrikes, compute cadence, step time variability, symmetry index, and estimated step length.
Wearables · Gait
biomex.studio/imu →
Teaching Tools
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Centre of Mass
Whole-body CoM from a photograph using segmental analysis. 17-point digitising with de Leva (1996) segment parameters.
Teaching
biomex.studio/com →
🎯
Projectile Motion
Digitise a projectile from a stroboscopic image. Step-by-step worked equations fill in with your actual values as you go.
Teaching · Equations
biomex.studio/projectile →
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Posture Analysis
Upload a photo, select a landmark preset, compute joint angles, trunk inclination, and plumb line deviations with clinical flags.
Clinical · Screening
biomex.studio/posture →

What's new

Recent updates to biomex.studio

Tutorials and Help pages, Citation tool

May 2026
  • Tutorials, Help, and What's new are now full standalone pages
  • Citation button in the header - MLA, APA, Chicago, Harvard, Vancouver formats plus BibTeX, RIS, and RefWorks export
  • Em dashes removed throughout for cleaner typography
  • Kinematics Quick Action in Tools panel - opens chart with annotation selector and empty state prompt
  • Logo weight updated to match site typography
  • Nav font size consistent across all pages

Dual video + external data sync

May 2026
  • Dual video - side-by-side comparison, both videos start simultaneously for smooth sync
  • External data import - CSV/XLSX files (force plate, EMG, accelerometer)
  • Data strip - waveform display below video with playhead cursor, click to seek
  • Sync point - align video frame to data sample for accurate time-locking
  • Polygon (P) and Circle (O) tools with area calculation
  • Zoom controls - 0.25x to 4x
  • Normalise and Jump analysis pages added
  • Centre of Mass segmental analysis page added

Calibration UX + shapes + URL loading

May 2026
  • Calibration dialog - draw scale line, dialog pops with live px/unit ratio
  • Scale and FPS merged into single Apply Calibration action
  • Rectangle (R) and Freehand (D) tools
  • Load from URL - direct MP4 or Google Drive share link
  • Hover tooltips on all tool buttons
  • Touch support: long-press markers on mobile

Template tracking + kinematics

May 2026
  • Track-on-play - enable tracking per marker, plays with video, works in both directions
  • Template size, search radius, and confidence threshold controls
  • Kinematics chart - position, velocity, acceleration with Chart.js, scaleable panel
  • Annotation properties: colour picker, line weight, visibility frame range

Initial release

May 2026
  • Video loading and frame-by-frame playback
  • Marker, Distance, and Angle annotation tools
  • Scale calibration, session save/load, CSV export

Built for sports science education and practice

biomex.studio is developed by Andrew Callaway at Bournemouth University. The tools are designed to remove the barrier between biomechanical concepts and hands-on analysis — no specialist software, no licence fees, no setup.

Used in undergraduate and postgraduate sports science teaching, and in applied practice with athletes and clinical populations.

Please cite biomex.studio if you use it in research or teaching. Use the Cite button in the analysis tool.

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Private by designYour data never leaves your browser. No uploads, no cloud processing, no accounts.
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Free, alwaysNo paywalls, no feature restrictions, no trials. Everything works from day one.
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Academically groundedTools reference published methods — de Leva (1996), Winter (2009), Linthorne (2001) and others.