See what changes in your element.
Choose a short phase, then compare the visible body line with its video evidence. You choose the element; SkateSense measures the image, not technique quality.
No account or upload. Video stays in this tab. Browser pose models load on first analysis; no cloud inference. Closing this page clears the review.
Mark a 0.5–8 second phase. For a landing, include first contact through the exit. For a turn, choose a section where the same leg remains visible.
Your phase, with evidence
Tap an image to seek the original. Cyan dots show exactly which joints contribute. Angles are 2D estimates; no blade, height, speed, rotation count, GOE or level is inferred.
Confidence controls readability, not correctness. Two detected people suppress geometry; a missed second person is still possible. Leave confirmation unchecked when unsure. No ideal angle or good/bad grade is assigned.