A baby monitor in about a minute.
Leave a spare phone by the cot, scan the code with yours, and it is listening. Any two devices: a tablet, your laptop, another phone. Nothing to install.
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Simple
Two devices, one scan. No app, no account, nothing to configure.
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Reliable
Our own servers and relay. A lost link is never shown as a quiet room.
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Private
Browser to browser. Nothing recorded, nothing stored, no ads, ever.
How it works.
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Open it on the device that stays
Any phone, tablet or laptop with a microphone. It listens, and shows a QR code.
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Scan the code with the device you keep
It joins straight away. No pairing, no password, no second app.
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Go back to what you were doing
Sound by default, an alert if the room stirs, the picture when you ask for it.
For the nights your own monitor can't cover.
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Away from home
A hotel room, a rented flat, a night at the grandparents'. Yours is at home, or it never fitted in the bag.
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Further than yours reaches
The bottom of the garden, two floors up, a thick old wall. These two devices find each other over the internet, so the distance between them stops being the question.
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A campsite, a van, a boat
No Wi-Fi to borrow. One phone on mobile data is enough, and sound alone costs very little of it.
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Before you own one at all
The first weeks, or the one weekend a year you need it. Two devices you already have, nothing to buy and nothing to set up.
More on each of those: a baby monitor for hotels and rentals.
Silence is never ambiguous.
The failure that matters in a baby monitor is not a crash. It is a quiet screen that looks exactly like a sleeping child.
- Direct when it can be, relayed when it must. One device on mobile data, a guest network, the Wi-Fi of a rented flat — it connects anyway.
- A lost link never looks like a quiet room. Shown on both devices, as a warning first, then plainly.
- It comes back on its own. A dropped Wi-Fi, a rebooted router, a reloaded tab — the sound returns without you.
- Monitoring that stops tells you. Even with your phone locked and the page closed.
- Our own server restarting does not end a nap. The devices already connected never learn of it.
Questions.
Do I need to install an app?
No. NapLink runs in the browser on both devices, and it is fully usable that way. Adding it to your home screen is a one-tap comfort — an icon, full screen, no address bar — and on iPhone it is also what makes notifications possible. That last part is Apple's rule rather than ours; the app tells you how, at the point where it matters.
Can I mix a phone, an iPhone and a laptop?
Yes, in any combination and either way round. Both halves are the same web page, so an iPhone can watch the cot while an Android listens, or an old phone can watch while you keep an eye on your MacBook — a laptop makes a particularly good listening post, since it is already open in front of you. Nothing has to match: not the brand, not the operating system, not the app store. One listening device per session, for now. Which device to put where is its own question: using your phone as a baby monitor.
Does it work if the two devices are not on the same Wi-Fi?
Yes. The two devices find each other over the internet, so one can be on the house Wi-Fi while the other is on mobile data. The same network is simply the fastest case. And if a network refuses the connection outright, NapLink says so — it never leaves you with a quiet screen that might mean either thing.
Where do the sound and the picture actually go?
Between your two devices and nowhere else. They connect browser to browser, and our server only introduces them — it never carries the room. When a network refuses a direct connection our relay forwards the stream instead, still encrypted end to end: it moves bytes it cannot read, and keeps none of them. Nothing is recorded, nothing is stored, there is no account to leak, and there will be no advertising — an ad network is a data-collection business, and this is a page pointed at a child's room.
How is this different from the other baby monitors?
The apps in the stores want an account, usually a payment before you know it works, and the same app at both ends — so an iPhone by the cot and an Android in your pocket is often not on offer. The ones that run in a browser get that part right, as this does. Where they differ is afterwards: most alert inside their own tab, so the screen stays on and the page stays in front, and many lean on public brokers and free relay tiers. The introduction, the relay and the alert here run on servers we rent and answer for.
How does it decide something is worth waking you for?
It learns the room. Over the first moments it measures how quiet that room actually is, then alerts when a sound climbs clearly above that floor — so a fan, a fridge or a lorry outside settles into the background instead of waking you, and there is no threshold left for you to guess at. The sound is measured on the device by the cot and only the verdict travels, which is why the alert still reaches a locked phone with the page closed, and still works when you have muted the sound to save data.
What does the device by the cot do while it is watching?
It keeps its screen awake, and says so plainly if the browser will not let it. You can send it fully black so the room stays dark, then raise its light from your phone when you actually want to look. Video stays off until you ask for it.
Does it eat my mobile data?
Sound alone is very light, a fraction of what a video call costs. Video is far heavier, which is exactly why it is off unless you ask for it. On a home network none of it counts against a data plan.
Is it really free?
Yes: free today, no account, no card, no ads. NapLink is young and small, and it stays free while it is. If enough people use it that the relay starts to cost real money, there may one day be something to pay for; if that happens we will say so long before anything changes, and advertising is ruled out for good. The shape of the later, paid side is on the pricing page — hours bought once, never a subscription.
Tonight, a spare phone is enough.
No account, no card, nothing to install. It takes about a minute.
Start monitoringNapLink is not a medical or safety device. It depends on two devices, their batteries, their browsers and a network, any of which can fail without warning. Never rely on it as your only means of supervising a child.