AudioContext State Visualizer - Online Debug Autoplay
See the current AudioContext state (suspended, running). Resume it with a button. Understand autoplay policies.
UD5 Toolkit
getUserMedia API.AudioNode objects. Parameter changes (frequency, gain, filter cutoff, etc.) take effect immediately with smooth, sample-accurate transitions.See the current AudioContext state (suspended, running). Resume it with a button. Understand autoplay policies.
Drop a WAV file and see its full header: sample rate, bit depth, channels, and chunk structure. Raw bytes explained.
Record a short audio or video snippet and get a shareable link (stored locally in browser, no server). For quick feedback.
Trim audio files or split into multiple segments using visual waveform. Set start/end markers precisely. Download segments or merged track. Purely browser-based.
Select a part of an audio file and trim it to the selection. Playback preview. Download the cropped audio. No upload.
Load a video and visually check if audio aligns with lips. Use frame‑by‑frame stepping. Debug playback issues.
Remove silent parts from an audio recording. Useful for podcasts and lectures. Set threshold and minimum silence duration.
Browse a collection of common bird calls. Play short audio samples to identify birds you hear. Educational static data.
Record audio from your microphone and save as WAV file. Visual waveform while recording. Simple and privacy-friendly; audio stays in your browser.
Record audio directly from your microphone and download it as a WAV file. Perfect for quick notes. No upload, fully offline support.
Browse a searchable list of standard HTTP request and response headers with explanations. Quick dev help.
Look up any HTTP status code and see its meaning, RFC reference, and example. Full offline reference.
Explore all Intl APIs: NumberFormat, DateTimeFormat, RelativeTimeFormat, ListFormat. See outputs for any locale. Powerful i18n.
Write a short note and set a specific time for a browser notification reminder. Great for quick one‑offs. Local.
A complete reference of HTTP status codes with explanations. Search and filter by code or category. Useful for API developers and web debugging. Static and fast.
Log your daily water consumption with one click. Set a goal and track progress. Data stored locally for privacy. Simple and clean interface.
Timer that reminds you to look at something 20 feet away for 20 seconds every 20 minutes. Customizable intervals and subtle sound/visual alerts.
Enter your must volume and current Brix, TA, and pH to calculate additions of sugar, acid blend, or tannin. Standard winemaking formulas.
Convert any text to snake_case, kebab‑case, camelCase, or PascalCase. Essential for programming variable naming. Local.
Upload a WebP image and automatically generate a <picture> tag with JPEG/PNG fallback. Ensure compatibility everywhere.
Paste response headers string and get a security audit. Check presence and configuration of key security headers. Local analysis.
Perform gestures on a canvas and see them detected in real time. Logs swipe direction, pinch scale, and rotate angle.
Timer to remind you to limit shower water exposure even with a cast cover. Keep your cast dry.
Strip leading line numbers from code snippets or poetry. Quick and accurate. Restore the original text. Entirely local processing, no data upload.
Set recurring audio/visual reminders to check and correct sitting posture. Adjustable interval and notification style. Helps reduce back pain from desk work.
Create a properly styled 'Skip to Content' link. Customize target and appearance. Essential for keyboard users. Copy the HTML/CSS.
Enter word pattern with ? for unknown letters and known letters to find matching dictionary words. Essential crossword help. Local dictionary.
Select cities and see a 24-hour grid highlighting compatible meeting times. Drag to find a slot that works for everyone. Daylight saving aware.
Set a timer that reminds you to take a break, stretch, or follow the 20‑20‑20 rule. Desktop notification supported. Runs offline.
Keep a simple list of movies you want to watch. Add notes and check them off. Purely local storage.