Ambient Focus Sound Mixer – Online Rain, Fire, Cafe, Waves
Mix multiple ambient sounds (rain, fireplace, coffee shop) to create your perfect productive background.
UD5 Toolkit
Customize your own soundscape with rain, wind, and cafe noises. Perfect for focus, relaxation, meditation, or drowning out distractions.
Soothing drizzle to heavy downpour
Gentle breeze or howling gusts
Background chatter and clinking cups
Mix multiple ambient sounds (rain, fireplace, coffee shop) to create your perfect productive background.
Mix realistic rain sounds with optional thunder and wind. Adjust individual volumes to create the perfect sleep or study atmosphere.
Use your microphone to detect the dominant frequency of ambient sounds. Visualize the spectrum. Local Web Audio.
Connect an audio source to an Analyzer Node and display frequency and time‑domain data. Learn Web Audio visualization.
Play a simple monophonic synthesizer with your keyboard. Choose waveform, attack, decay, and filter. For music fun.
Process audio faster than real‑time with OfflineAudioContext. Apply filters and export the result. Dev tool.
Read the ambient atmospheric pressure in hPa using the Pressure Sensor API (if available). Real‑time graph.
Play a collection of retro 8‑bit synth pads and leads using your keyboard. Record sequences and export as WAV. Pure Web Audio API.
Register a periodic background sync to fetch fresh data even when the tab is closed. Understand the API and limits.
Load an audio file and see its spectrogram with frequency over time. Adjust resolution and color map. Discover hidden sounds.
Measure the integrated loudness of an audio file in LUFS and RMS. Check if your music meets streaming platform standards. Client‑side.
Pomodoro timer with built‑in lo‑fi music playlist (synthetic). Focus and rest cycles. No copyright music; generated tones.
Apply lowpass, highpass, and reverb to an audio source. See frequency response. Create your own guitar pedal. All local.
Create experimental glitch noises by toggling virtual circuit bend points. No real electronics harmed. Fun noise toy.
Zoom through the electromagnetic spectrum from radio waves to gamma rays. See wavelength, frequency, and applications. Static educational page.
Trigger different vibration patterns on mobile devices. Test if your phone supports haptic feedback. Simple demo.
Play a selection of local lo‑fi tracks (embedded). Simple UI with play/pause. No copyright issues. Stay focused.
Simulate adaptive bitrate logic by switching between different quality video segments. See how ABR algorithms work.
Shift the pitch of any audio clip by semitones without affecting playback speed. Perfect for music transposition. Local Web Audio.
Register a periodic background sync and see the status. Schedule content updates for your PWA. API demo.
Use the Magnetometer API to build a digital compass. See magnetic field strength and heading in real time.
Pick a method, URL, headers, and body, then send an HTTP request directly from your browser. Debug APIs easily.
Find your public IP address and view approximate geolocation, ISP, and browser header details. No personal data stored. Static and instant.
Register a one‑off background sync and see it fire when connectivity returns. Debug service worker sync logic.
Transform a panoramic photo into a tiny planet (stereographic projection). Drag to adjust orientation. Download.
Experiment with the experimental Prompt API and Summarization API right in your browser. See how the on‑device AI model responds. Requires Chrome with AI features enabled.
Record how many eggs your hens lay each day. Visual chart shows weekly trends, helping you spot drops in production that may signal health issues.
Measure your browser's GPU compute power using a simple WebGPU matrix multiplication. See raw FLOPS and compare with peers. Fully client‑side.
Record daily systolic/diastolic readings and pulse. See a trend chart. All data saved locally in your browser.
Select HTTP method, set headers, and body. Send requests and see the full response. Lightweight Postman alternative.