UD5 Toolkit
On‑Screen Pixel Ruler - Online Measure Elements in Browser
Drag a virtual ruler across your screen to measure pixel distances. Horizontal and vertical guides. Useful for UI designers checking alignment.
Tag: Screen Tools - Resolution Test
8+ toolsScreen Color Depth Checker - Online 8‑bit vs 16‑bit
See your monitor's color depth and pixel depth. Detect if HDR or wide gamut is available using media queries.
Wake Lock API Tester - Online Prevent Screen Sleep
Request and release a screen wake lock to keep the device awake. See the lock state in real time. Perfect for recipes or presentations.
Screen Color Picker - Online Eyedropper with Magnifier
Use the browser's native eyedropper tool to pick any color from the screen. Shows zoomed preview. Quick and easy.
Virtual Flashlight - Online Color & Strobe Screen
Turn your browser screen into a full‑color flashlight or strobe. Adjust brightness and color. Simple utility.
Battery Saver Dark Screen - Online Minimal Power Page
A completely black page to save battery on OLED devices. Click to go fullscreen. Simple utility.
Online Screen Ruler - Measure Pixels & Inches on Screen
An on‑screen ruler that measures in pixels, centimeters, and inches. Drag to resize. Handy for UI designers and developers.
What is My Browser - Online Browser Details Viewer
Display detailed information about your current browser, including version, JavaScript status, cookie support, and screen size. Works instantly with no input.