Belt Control — treadmill control in the browser

Using a WalkingPad without the KS+Fit app

You don't need an account, a phone or the manufacturer's software to use a KingSmith treadmill. Nothing locks your pad to one app: anything that speaks its language can control it, and that includes a web browser.

What you actually lose without the app

Most WalkingPads come with a small remote, and for walking it's genuinely enough: start, stop, faster, slower. What the remote can't do is remember anything. No history, no daily total, no goal — and the numbers on the treadmill's own display reset the moment you finish.

That memory is what the phone app is really for. The price is an account, a login, notifications, and your walking data sitting on someone else's server. For a lot of people that isn't worth it, which is why this page exists.

Your options, compared

HowControls the beltRemembers your walksWhat you need
The remote it came with Yes No Nothing
KS+Fit or WalkingPad+ Yes Yes, on their servers A phone and an account
A desktop app for your computer Yes Depends which An install, usually one type of computer only
A script you run yourself Yes Whatever you build Comfort with a command line
Belt Control Yes Yes, on your own device Chrome or Edge

How the browser option works

Modern browsers can connect to Bluetooth devices directly, once you pick the device from a list the browser shows you. That's all this is: no pairing code to type, no extra software in between, and nothing sent to a server. Your browser talks to your treadmill over Bluetooth, the same way it talks to a pair of headphones.

In practice: open the page in Chrome or Edge, press Connect, and pick your pad from the list. The app then figures out how to talk to your particular treadmill. See which pads that covers.

What you get

Where your data lives

In the browser you used, on your own device, and nowhere else. Nothing is uploaded and there's no account to make.

There's a real downside to that: clear your browsing data and your history goes with it, and a walk recorded on your laptop won't show up on your tablet. That's what the backup file is for. It's how you move your history around, and saving one is up to you.

Nothing to install. Open it in Chrome or Edge with the treadmill switched on and nearby.

Open Belt Control

Is it safe to run a treadmill from a web page?

It's as safe as running it from the phone app. With every option on this page, the remote included, the belt can start with nobody standing on it.

Here's what the app does about it. Starting and resuming both ask you to confirm, and show you the speed first. The speed is capped at what your treadmill says it can handle, with a second cap in case a pad reports something nonsensical. Stop is always available, works with the Esc key, and stays pinned on screen from the moment you press Start until the belt reports it has stopped. And the app never reconnects on its own, because quietly reconnecting to a treadmill that might be moving isn't safe.

All of that reduces the risk, but it doesn't remove it. Closing the page does not stop the belt. Treat the treadmill's own controls or safety key as the real stop.

Does it need an internet connection?

Only to load the page the first time. After that your browser keeps a copy and it works offline. The connection to your treadmill never goes over the internet anyway.