Step-by-step fixes, checks, and browser workflows.
Measurements, setup notes, and sound-system fundamentals.
Local-first workflow notes for developers.
Practical ways to handle files and data safely.
How to test peripherals and interpret the results.
Resistor codes, Ohm's law, and battery capacity math.
Guides for testing your hardware properly in the browser, and what the numbers you measure actually mean for your next purchase.
Measure webcam-to-microphone latency using CapyToolkit's Webcam A/V Sync & Latency Meter. Apply the OBS Audio Offset for perfect A/V sync in your streams.
Test your gaming peripherals client-side with CapyToolkit's zero-upload tools. Verify monitors, mice, webcams, and gamepads before competitive play.
Your webcam hides flaws that degrade video quality, including uneven lighting, bad framing, and motion noise. Test everything client-side, no uploads, no logs.
Test your controller’s analog stick drift and deadzone accuracy entirely in-browser. Learn to read raw axis values, and diagnose hardware wear.
Instant in-browser feedback to balance lighting, perfect framing, and verify resolution for professional livestreams and recordings.
Test MIDI keyboards for dead keys, ghost notes, and USB-to-browser input latency using CapyToolkit's 100% client-side diagnostic suite.
Learn to measure mouse input lag and polling rates using CapyToolkit's browser-based tool without cloud processing or data uploads.
A practical walkthrough of running client-side display diagnostics for dead pixels, backlight bleed, and color uniformity without uploading a single frame.
Installing puts every tool one tap from your home screen, no browser required.
It stays cached locally, so tools keep working on a plane, on a locked-down network, anywhere signal doesn't reach.
Search tools, blog posts and pages…
Install from Microsoft Store