Free sleep sounds: rain, white noise, baby lullaby. 100+ ambient sounds, mix studio, sleep timer. No ads.
Users
15
+2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
4
0 in 30 days
Store rank
#164K
#137K among extensions
Version
1.0.1
updated 11 Apr 2026
Users
monthly, 6 months
Latest, 15 Oct 2026:15 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
Latest, 15 Oct 2026:4 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Uykucu — Sleep Sounds, White Noise & Relaxation
🌙 Uykucu — Fall Asleep Peacefully with Nature Sounds
Struggling to fall asleep? Need to quiet your mind? Uykucu is a free Chrome extension that generates the most relaxing nature sounds directly in your browser. No audio files to download — everything is synthesized in real-time using Web Audio technology.
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🎵 48+ NATURAL SOUNDS
Nature: Rain, heavy rain, ocean waves, forest, wind, thunder, creek, morning birds, snowfall, night crickets, waterfall
Ambient: Fireplace, white noise, brown noise, pink noise, cafe atmosphere, fan, space ambience, train ride
Baby Sleep: Womb sounds, heartbeat, lullaby, shushing, cradle, hair dryer, vacuum, car ride, music box, cat purring, washing machine, crib mobile, star lullaby, seashell
Meditation: Tibetan bowl, binaural beats, om chant, drone ambient, wind chimes, crystal bowls, theta waves
Special: Deep sleep, night rain, soft piano, 432 Hz, delta waves, cloud bed, warm hum
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🎛️ MIX STUDIO
Play multiple sounds simultaneously and control each volume independently. Create your perfect sleep environment — rain + fireplace + wind, all at once!
⏱️ SLEEP TIMER
Set a timer from 15 minutes to 2 hours. When time is up, sounds fade out gradually — never waking you up.
🫁 BREATHING EXERCISE
Guided 4-7-8 breathing technique, scientifically proven to reduce anxiety. Breathe in for 4 seconds, hold for 7, breathe out for 8. Relax in just 4 cycles.
🌐 BILINGUAL
Full Turkish and English language support. Switch with one tap.
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💡 WHY UYKUCU?
✓ Sounds keep playing even when popup is closed
✓ No audio files downloaded — zero data usage
✓ Completely free, no ads, no premium
✓ Ultra lightweight: Only 38 KB
✓ Works offline — no internet required
✓ Zero personal data collection
✓ Individual volume control for each sound
✓ Turkish & English language support
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🎯 PERFECT FOR
People with sleep difficulties or insomnia
Parents soothing their babies to sleep
Students and professionals who need focus
Meditation and mindfulness practitioners
Tinnitus sufferers seeking relief
Anyone wanting to relax after a stressful day
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Uykucu is a completely free project. If you enjoy it, please leave a star rating to support us ⭐
Contact: nihatcagdas@gmail.com
Web: https://uykucu.netlify.app