Free sleep sounds & rain sounds for deep rest
Rain, white noise, brown noise and calming nature sounds — with a full-screen scene to match. Free to use, no account, no ads. Dimly Plus adds a few extras when you want more.
Procedural
Non-looping, organic rain sounds that never repeat exactly the same way.
Sleep Timer
Gently fades out the volume as you drift into deep sleep.
Background
Listen while using other apps or with your screen off.
Made for sleep, focus & calm
Sleep
Rain, storms and brown noise to help you fall asleep faster and stay asleep longer.
Focus
White noise, fan sounds and steady hums to block distractions while you work or study.
Unwind
Forest streams, ocean rain and gentle ASMR to calm your mind after a busy day.
Free to use — Plus if you want more
Dimly (free)
- Six rain scenes with full-screen photos
- Every rain and nature sound
- Sleep timers up to an hour with gentle fade
- Black screen mode & sleep journal
- No account, no ads, no tracking
Dimly Plus
- The full sound library — noise colours, ASMR, binaural, machines
- Campfire and night train scenes
- Intensity control and blended sound layers
- All four themes
- All-night timers and the phone curfew & alarm
- Save up to 5 presets and guided 4-7-8 breathing
Optional upgrade — the free app stays free.
Explore Your Atmosphere
Frequently asked questions
Are rain sounds good for sleep?+
Yes. Rain sounds create a steady, predictable background noise that can mask sudden household sounds and help your brain relax into sleep.
Is Dimly free to use?+
Yes — Dimly is free to use, with no ads and no account. The rain scenes, nature sounds and sleep timers up to an hour are all free. Dimly Plus is an optional upgrade that adds the full sound library, intensity control, sound layers, all themes, all-night timers, the phone curfew and alarm, saved presets and guided breathing.
Does Dimly collect my data?+
No. Dimly does not collect personal data or use cookies. Your scene, volume and timer preferences are stored locally on your device.
Can I use Dimly for focus and study?+
Absolutely. Many people use white noise, brown noise, fan sounds and gentle rain to stay focused while working or studying.