White Screen Image Tool
This free white screen image tool turns your entire screen white, black or any custom colour instantly. No download, no signup. Use it for monitor cleaning, photography lighting, dead pixel testing, AMOLED battery saving and more.
Press Escape or tap anywhere on screen to exit full screen
How to Use the White Screen Tool in 3 Steps
No software, no registration. Open the page, pick a colour, go full screen. Works on any device in seconds.
Pick Your Colour
Choose from 7 preset colours including white, black, red, green and blue. Or enter any hex code in the custom field for a precise match. The built-in colour picker gives you access to over 16 million colours. If you want to test how your images look against a white background, use the AI Background Remover to cut out subjects first.
Adjust Options
Set brightness from 10% to 100%. Use 80% for photography fill light to avoid harsh glare. Enable auto-exit timer if you want the screen to close on its own. Turn on Wake Lock to stop your phone going to sleep during a photo session. Enable gradient cycle to loop through colours automatically.
Open Full Screen
Click Open Full Screen and your entire display turns the chosen colour instantly. Press Escape or tap anywhere to exit. After your photo session, you can compress the captured images to reduce file size without quality loss before sharing or uploading.
Which Colour Should You Use?
Photography tip: Set brightness to 80% (not 100%) when using white as a fill light. Full brightness can create harsh shadows and overexpose close-up subjects. After shooting, crop your photos to the right aspect ratio and then remove the background for clean product images.
Everything in One Free Tool
More than just a white screen. Four advanced features that no other free screen tool offers.
Pure White Screen
Instant full-screen white at full brightness. Reveals every smudge on your monitor and works as a clean photography fill light.
Black Screen Mode
Full-screen black for AMOLED battery saving, dead pixel detection on bright spots, and dark mode testing.
7 Preset Colours
White, black, red, green, blue, yellow and teal. One click switches your entire screen. Use red, green and blue for dead pixel testing.
Custom Colour Picker
Enter any hex code or use the native colour picker to choose from 16 million colours. Great for brand colour matching and design work.
Brightness Control
Slide from 10% to 100%. Use 80% for photography fill light to reduce glare, or 100% for maximum screen brightness.
True Full Screen
Native browser full screen with no taskbar, no tabs and no browser chrome. A completely clean solid colour display.
All Devices
Works on desktop, laptop, tablet and mobile. Full screen mode is supported in Chrome, Safari, Firefox and Edge.
100% Private
Everything runs in your browser. No data is uploaded, no account is needed and no information ever leaves your device.
Instant Response
The screen changes colour in under 0.1 seconds. No loading, no processing, no waiting even on a slow internet connection.
Auto-Exit Timer
The screen closes automatically after 1, 5, 10 or 30 minutes with a live countdown displayed on screen. Useful during photography sessions when you cannot reach the keyboard.
Gradient Colour Cycle
Smoothly loops through all 7 colours at slow, medium or fast speed. Good for colour reproduction testing and ambient display use. Enable this during a dead pixel test to see all colours automatically.
Live Clock Overlay
Shows the current time in large digits on the full-screen display. Turn any monitor or TV into a large desk clock for your home office or studio.
Keep Screen On (Wake Lock)
Prevents your phone or tablet from sleeping while the screen is active. Essential when using the device as a photography fill light during longer shoots. Uses the browser Wake Lock API and works in Chrome and Edge.
Popular Ways People Use This Tool
Monitor Cleaning
White screen shows every fingerprint, dust particle and smudge clearly. Clean with a dry microfiber cloth while the screen is white, then check the result with the screen still on.
Product Photography Lighting
Use your phone or tablet as a free fill light for product photos and portraits. Set brightness to 80% and position the device at a 45-degree angle to the subject. After shooting, remove the background from product photos for a clean white result ready to upload to Daraz or your online store.
Dead Pixel Testing
Cycle through red, green, blue, white and black to find any dead or stuck pixels on your monitor. A dead pixel stays the same colour through all screens. Use the gradient cycle mode to check all colours automatically without pressing anything.
AMOLED Battery Saving
On AMOLED displays including Samsung Galaxy, Google Pixel and iPhone X onwards, black pixels are turned off completely and draw zero power. A full black screen can reduce battery consumption by up to 60% compared to a white screen on the same device.
Colour Calibration
Solid colour backgrounds make it easy to visually calibrate monitor brightness and colour temperature. Compare how the same image looks in different lighting by using white, grey or custom colour screens as a reference. After calibration, convert test images to black and white to check tonal contrast.
Clock Display for Office or Studio
Enable the clock overlay and use an old monitor, TV or tablet as a large digital desk clock. Combine with a custom colour background to match your room or brand colours.
White Screen vs Black Screen - Which Should You Choose?
Understanding the difference helps you get the best results from each colour mode.
When to Use White Screen
- Monitor cleaning: White light reveals dust and smudges better than any other colour. Clean with a microfiber cloth and verify the result with the screen still on.
- Photography fill light: Set brightness to 80-100% and position your phone or tablet beside the subject as a soft, free fill light.
- Eye tests and visual checks: High contrast white background is used in many visual acuity tests and eye chart apps.
- Video call lighting: Place your phone showing white screen in front of you for even, flattering light during Zoom or Teams calls.
After a photography session using white screen lighting, you can compress your photos to reduce file size without visible quality loss before sending them to a client.
When to Use Black Screen
- AMOLED battery saving: On AMOLED displays, black pixels are physically turned off. A full black screen saves up to 60% battery compared to white.
- Dead pixel detection on bright spots: Stuck bright pixels appear clearly against a black background during diagnostic checks.
- Dark mode app testing: Check exactly how an app or website looks against a true pitch-black background.
- Astronomy and low-light use: Red and black screens help preserve night vision during outdoor stargazing.
If you need a dark background image for a project, take a screenshot of the black screen and then upscale it to your required resolution without any blur.
How to Do a Full Dead Pixel Test (Step by Step)
- Go to a dark room to avoid window reflections on your monitor.
- Open the Red full screen and scan every corner slowly for any dot that is not red.
- Repeat with Green, then Blue, then White, then Black.
- A pixel that stays the same colour through all five screens is a dead pixel. A pixel stuck in one colour (red, green or blue) is a stuck pixel.
- Mark the location on screen with a small sticky note on the bezel.
- Most manufacturers allow a small number of dead pixels under ISO 13406-2 Class II before a warranty replacement is accepted.
To document dead pixels for a warranty claim, take a screenshot and use the Image Rotation Tool to align it perfectly. Then add a visible outline around the affected area to highlight it clearly before sending to support.
Monitor Cleaning Guide
The white screen makes every fingerprint and hair on your monitor visible. Follow this safe cleaning process to avoid damage.
- Turn on the white screen at 100% brightness.
- Turn off room lights so smudges appear as dark spots against the bright background.
- Power off the monitor after identifying the dirty areas to avoid accidental inputs during cleaning.
- Wipe with a dry microfiber cloth using gentle circular motions.
- For stubborn fingerprints, slightly dampen the cloth with distilled water. Never spray liquid directly onto the screen.
- Turn the white screen back on to check the result and repeat if needed.
Using White Screen for Product Photography (Practical Workflow)
This is one of the most popular uses of this tool among Daraz sellers, Instagram sellers and freelance photographers who need a quick and free lighting setup.
Place your phone or tablet showing the white screen at 80% brightness on a stand or propped against books at a 45-degree angle to the product. Shoot with your main camera. The white screen acts as a soft directional fill light that removes harsh shadows from one side of the product.
Once you have your shots, run them through this image editing sequence for a professional result. First, crop to a square or product ratio. Then use the AI Background Remover to cut out the product cleanly. If the photo is small or was taken from a distance, upscale it to a higher resolution. Finally, compress the image before uploading to save bandwidth and improve page load speed. All four tools are free and run in your browser with no signup required.
Free Tools for Your Image Workflow
All tools are free, run in your browser and require no account or signup.
AI Background Remover
Remove backgrounds from product photos taken with white screen lighting. Works on portraits, objects and product shots automatically.
Use Free Tool →Image Compressor
Reduce photo file size by up to 90% without visible quality loss. Use after capturing product photos to keep files lightweight for uploading.
Use Free Tool →AI Image Upscaler
Enlarge small or low-resolution photos up to 4x using AI. No blurring, no pixelation. Great for screenshots and product images.
Use Free Tool →Image Cropper
Crop photos to any aspect ratio. Prepare product shots for Daraz, Instagram or Amazon listings with the right dimensions.
Use Free Tool →Image Rotation Tool
Rotate or flip photos 90, 180 or 270 degrees. Fix sideways product shots or align screenshots before sharing.
Use Free Tool →Image Combiner
Merge 2, 3 or 4 photos side by side, stacked or in a grid. Perfect for before and after comparisons or multi-angle product shots.
Use Free Tool →Black and White Converter
Convert any colour photo to black and white instantly. Useful for dramatic product shots and before and after comparisons.
Use Free Tool →Add Outline to Image
Add a visible border or outline around any image. Useful for highlighting dead pixels in screenshots or making product photos stand out.
Use Free Tool →Frequently Asked Questions
Quick answers to the most common questions about the white screen tool.
Is this white screen tool completely free?
Yes, completely free with no subscription, no signup and no hidden charges. It is part of StackFlow Tools' free collection of browser-based utilities.
Does it work on iPhones and Android phones?
Yes. The tool works on iPhone using Safari and on Android using Chrome. It also works on iPads, tablets and any desktop browser. Full screen mode is supported across all modern browsers.
How does the auto-exit timer work?
Select a duration of 1, 5, 10 or 30 minutes from the Auto-Exit Timer dropdown before opening full screen. A countdown appears on the display and the screen closes automatically when the timer reaches zero. This is useful during photography sessions when your hands are occupied with the camera.
Does black screen really save battery on AMOLED phones?
Yes, on AMOLED and OLED displays including Samsung Galaxy, Google Pixel and iPhone X onwards, black pixels are turned off completely at the hardware level and draw zero power. Studies show a full black screen can reduce display power consumption by 40 to 60 percent compared to a white screen on the same device. This does not apply to LCD screens where the backlight stays on regardless of the displayed colour.
What is the gradient cycle mode for?
Gradient cycle smoothly loops through all 7 colours at slow (30 seconds each), medium (10 seconds each) or fast (3 seconds each) speed. It is useful for running a dead pixel test automatically without pressing any keys, for colour reproduction testing during monitor calibration, and for ambient or mood lighting displays.
What is Wake Lock and why does it matter?
Wake Lock is a browser feature that prevents your phone or tablet screen from going to sleep due to inactivity. When you use your phone as a photography fill light, you cannot always tap the screen to keep it awake. Enabling Wake Lock keeps the white screen on throughout your shoot without any manual interaction. It works in Chrome and Edge browsers.
How do I exit the full screen display?
Press the Escape key on a keyboard or tap anywhere on the screen on a touch device. The screen closes instantly and you return to the tool page with all your settings preserved.
Can I use a custom colour instead of the presets?
Yes. Use the colour picker to choose any of 16 million colours visually, or type a hex code directly into the text field. This lets you match a specific brand colour, use a neutral grey for photography, or set any precise colour you need for calibration or testing.
Does the tool upload anything to a server?
No. Everything runs entirely inside your browser. The tool does not upload any data, does not track your screen content and does not require any account. Your colour choices and brightness settings are handled locally in JavaScript and are never sent anywhere.
Ready to Use the White Screen Tool?
Scroll up, pick your colour and click Open Full Screen. Free, instant and works on every device.
Go to White Screen Tool