Toolipedia- Free
- No sign-up
- Works on any device
No tool matches your search.
- Free
- No sign-up
- Works on any device
Create a QR code for a link, Wi-Fi, WhatsApp, contact and more, or read one from a photo.
- Free
- No sign-up
- Works on any device
Fill in the details to see your QR code.
PNG for phones, chats and websites. SVG and PDF stay sharp at any size, which is best for printing. Tip: point your phone camera at the preview to test it.
3. Style (optional): colors, dots, logo
Choose a photo or screenshot or drag it here
Works with photos of printed codes, screenshots and image files.
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Monitor test
Check colours, gradients, sharpness, contrast and backlight bleed on your screen.
- Free
- No sign-up
- Works on any device
About Monitor test
Fill your screen with solid colours, gradients, sharpness patterns and black and white fields to check how it really performs. A full black screen in a dark room shows backlight bleed, a gradient reveals colour banding, and solid colours expose stuck or dead pixels.
How to use Monitor test
- Open the tool in full screen so the test pattern fills your display.
- Step through the colour, gradient, sharpness, contrast and backlight patterns.
- Look for banding, blurry text, washed-out darks or glowing edges, and note which pattern shows the fault.
Why use this tool?
- Private: everything happens in your browser. Nothing you enter is uploaded.
- Free, with no sign-up, no watermark and no limit on how often you use it.
- Works on phones, tablets and computers: Android, iPhone, Windows, Mac and Linux. Nothing to install.
- Available in 10 languages.
Also known as
Frequently asked questions
How do I find dead pixels on my screen?
Run the solid colour screens one at a time in fullscreen and look closely. A pixel that stays black on every colour is dead, while one stuck on a single colour is a stuck pixel.
How do I check for backlight bleed?
Use the all-black screen in a dark room with the brightness at your normal level. Bright patches along the edges or corners are backlight bleed. A small amount is common on many LCD panels.
What does the gradient test show?
A smooth gradient should fade evenly. Visible stripes or steps, called banding, mean the panel or its colour settings cannot show all the shades, which can be a settings issue or a cable limit.
Is Monitor test free?
Yes. Monitor test on Toolipedia is free to use, with no sign-up and no watermark.
Is it safe to use?
Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.
Does it work on my phone?
Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.
Do I need an account?
No. Just open the page and use the tool. There's no sign-up and no email needed.