About Vertical Jump Tester

Vertical Jump Tester measures a vertical jump from a phone video. You film a jump, step through it one frame at a time, and mark the frame you leave the ground and the frame you land. Your time in the air gives your jump height: h = g·t²/8, the flight-time method jump mats and sports-science video tests use.

It runs in Safari or Chrome, so there's nothing to install, and it shows how precise each result is at your video's frame rate. Slow motion from your camera app gives the most precise results.

Your video stays on your device: it is read inside your browser and never uploaded. See the privacy policy.

Vertical Jump Tester is made by Wikivec Inc.. Questions or ideas? Get in touch.