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Fun cardio games in your browser. No equipment — just you and your camera. Punch, swing, slice, duck. Video never leaves your device.Sparcam turns your webcam into cardio games. On-device pose detection scores real punches, swings and slices — no equipment, no install, no uploads. Boxing, Tennis and Slicer run in a browser tab, free in early access. Camera frames never leave your device.
Hey Product Hunt! 👋
Sparcam started as a side project literally called "shadow boxing" — I wanted cardio I'd actually stick with, without buying equipment or installing anything.
What it is: cardio games your body controls through the webcam.
🥊 Boxing — punch the pads, slip the bars, chase the combo
🎾 Tennis — make a fist to grip the racket, swing to return the ball
🍉 Slicer — slice fruit with fast sweeps, duck the bombs
How it works: on-device pose detection reads your body in real time, right in the browser tab. Real movement is what scores points — no gamepad, no wearables, nothing to hold.
Privacy was non-negotiable: camera frames are analysed on your device and discarded immediately. Nothing is uploaded, stored or recorded — close the tab and it's gone.
Is it a real workout? Yes. Timed rounds speed up as you land more, and a 90-second fitness test places you on the ladder.
Free in early access — every game open, no credit card. All you need is a webcam and about two metres of space.
I'd love to hear: which game feels best — and what game should we build next?
Hands up! 🥊
The on-device pose detection actually picked up my jabs without constant calibration, which is wild for something running in a browser. Tennis mode is a fun break between work sets.
honestly love that the video processing stays on device. that privacy angle is honestly a big deal for something like this, and the fact it just runs in a browser tab with no install is kind of wild.
About Sparcam on Product Hunt
“Camera-powered cardio games in your browser”
Sparcam was submitted on Product Hunt and earned 4 upvotes and 3 comments, placing #100 on the daily leaderboard. Fun cardio games in your browser. No equipment — just you and your camera. Punch, swing, slice, duck. Video never leaves your device.Sparcam turns your webcam into cardio games. On-device pose detection scores real punches, swings and slices — no equipment, no install, no uploads. Boxing, Tennis and Slicer run in a browser tab, free in early access. Camera frames never leave your device.
Sparcam was featured in Health & Fitness (83.1k followers), Games (98.8k followers) and Webcam (397 followers) on Product Hunt. Together, these topics include over 56.4k products, making this a competitive space to launch in.
Who hunted Sparcam?
Sparcam was hunted by sinan. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Sparcam stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
sinan