Why we built a free nap sound mixer for tired families
A free sound mixer built for the 3 a.m. moments, when a familiar hush is the difference between a settled baby and another lap around the nursery.
Nap Time Sounds is a free, browser-based sound mixer made for babies, naps, and the grown-ups trying to protect them. Instead of one fixed track, it lets you layer the sounds that tend to settle little ones: white, pink, and brown noise, a steady heartbeat, a rhythmic shush, a warm fan hum, and a womb-like whoosh. You blend them to taste, set a sleep timer, and let it play. Many of these sounds echo what a baby heard before birth, which is part of why a gentle, continuous hush so often takes the edge off fussing.
Everything runs in your browser using the Web Audio API. The sound is generated live on your device, so there is nothing to download, no app to install, and no account to create. Open the page, slide a few faders, and you have a sound machine that works on a phone propped by the crib or on the laptop in the next room. Because the audio is synthesized rather than streamed from a file, it never loops awkwardly and never needs a strong connection once the page has loaded.
It is for new parents, nap-time negotiators, night-shift partners, and anyone soothing a newborn, toddler, or themselves. We built it because the sound machines we found were either locked behind a paywall, buried in ads, or stuck on a single preset. This one is free and stays out of your way.
We want to be straightforward: Nap Time Sounds is a comfort tool, not a medical device, and nothing here is medical advice. Sound helps many babies settle, but it is no substitute for safe sleep practices or your pediatrician's guidance. Please keep the volume low and the speaker a few feet from your baby - a soft, gentle level is plenty, and quieter is always safer for little ears.
Nap Time Sounds is one of a small family of free, no-nonsense audio tools called the Audio Tools Network. If you like this one, you might also find a use for Heartbeat Sound for a steady, calming pulse, or Ocean Waves for a slower, rolling kind of quiet. They share the same idea: a useful sound, free, right in your browser.
Questions, feedback, or a bug to report? We would genuinely like to hear it - reach us any time on the contact page.