UD5 Toolkit
Pomodoro Playlist Linker – Attach a Lo‑Fi Playlist to Each Timer
Set a custom YouTube or Spotify playlist URL that auto‑plays when your focus session starts and pauses on breaks. Combine productivity with your favorite tunes.
Binaural Beats Generator - Online Brainwave Focus & Relax
Binaural Beats Generator
Online Brainwave Focus & Relax – Enhance Your Mental State
Base tone pitch heard in both ears.
Difference between left and right ear stimulation.
Left: 200 Hz | Right: 210 Hz | Beat: 10 Hz
Use stereo headphones for best effect
Frequently Asked Questions
Binaural beats are an auditory illusion created when two slightly different frequencies are played separately into each ear. The brain perceives a third tone equal to the difference, which can influence brainwave activity and mental states.
Beta waves (14–30 Hz) are linked to active concentration and alertness. For sustained focus, select the "Focus" preset (20 Hz). Some people also benefit from Alpha states (8–14 Hz) during relaxed, creative work.
Yes, stereo headphones are required. Each ear must receive a separate tone for the binaural beat to occur. Without headphones, the effect is lost.
Start with 10–15 minutes daily. Many users find 20–30 minute sessions effective. Use the built‑in timer to avoid overexposure and to end sessions cleanly.
For most people, binaural beats are safe at moderate volume. Avoid if you have epilepsy or seizures triggered by flashing/flickering lights. Stop if you feel dizziness, headache, or discomfort, and keep volume comfortable.
Carrier frequencies between 150–250 Hz are usually most pleasant. Lower carriers can feel deeper; higher ones brighter. Experiment to find what feels best. The default (200 Hz) works well for most.
No. Binaural beats can alter alertness and relaxation levels. Never use while driving, operating heavy machinery, or any situation requiring full attention.
Virtual Zen Garden – Rake Sand Patterns with Your Mouse
Drag your cursor over a digital sand garden to draw raked lines. Place stones and create soothing patterns. A meditative, screen‑based relaxation tool.
White, Pink & Brown Noise Generator – Focus & Sleep Sounds
Play continuous white, pink, or brown noise directly in your browser. Includes a timer for sleep and volume control for office concentration.
Focus Indicator Designer – Online CSS Outline Generator
Visually design a custom :focus‑visible outline style. Copy the CSS. Better than the default.
Ambient Focus Sound Mixer – Online Rain, Fire, Cafe, Waves
Mix multiple ambient sounds (rain, fireplace, coffee shop) to create your perfect productive background.
White Noise Machine - Online Sleep & Focus Sound Generator
Generate continuous white, pink, or brown noise for sleep or concentration. Adjustable volume with offline support via Web Audio API. No downloads needed.
Focus Outline Styler - Online Design Accessible Rings
Design a custom focus indicator with outline, offset, and box‑shadow. Preview on interactive elements. Copy the CSS.
Tab Order Visualizer - Online See Focus Navigation Path
Enter a URL and see a visual map of the tab order. Detect broken tabindex values. Improve keyboard navigation.
Pomodoro Timer with History - Online Track Focus Sessions
Pomodoro timer that saves completed sessions to localStorage. View daily/weekly stats. Boost productivity with data.
Advanced Ambient Noise Mixer - Online Rain, Wind & Cafe
Mix white noise, pink noise, rain, thunder, wind, and cafe sounds. Individual volume, save presets. Relax or focus. All client‑side.
Random Color Flash - Online Meditation & Focus Light
Full‑screen random colour changes at a slow pace. Use it as a dynamic background for meditation or focus.
Weekly Focus Planner - Online One Page Goal Sheet
Set three big tasks for the week, top priority, habit trackers, and notes. Print or screenshot. Minimalist.
Focus Order Analyzer - Online Tab Navigation Check
Enter a URL and extract tab‐index order violations and focusable elements. Quick accessibility audit. Client‑side fetch.
Ambient Sound Mixer - Online Rain, Fire & Coffee Shop
Mix multiple ambient sounds (rain, fireplace, cafe, forest) at different volumes. Create your perfect background noise. Local loops.
Pomodoro Timer with Lo‑Fi Music - Online Focus Beats
Pomodoro timer with built‑in lo‑fi music playlist (synthetic). Focus and rest cycles. No copyright music; generated tones.
Pomodoro Task List - Online Focus Timer with To-Do
Combine a Pomodoro timer with a simple task list. Assign estimated Pomodoros to tasks and track completions. Boost focus and get things done.
Pomodoro Timer - Online Focus & Productivity Countdown
Boost your productivity with the Pomodoro technique. Customizable work and break intervals with desktop notifications. Simple, clean, and works offline.