TestBeforeYouBuy is a free set of in-browser tests for screens, audio and input devices, plus researched desk and monitor setups. The most used are the display and screen test, the dead pixel test, the headphone test and the keyboard tester. Each runs in seconds with no download or sign-up.
Run them on a new or used device before its return window closes. If something fails, the buying guides list replacements chosen from published specs and verified owner reviews.
Updated 2026. Researched from published specifications and verified owner reviews; not professional advice.
Free tools to test your screen, audio, and gear before you buy, plus ready-to-shop monitor and desk setup lists for every budget. Spend once, set up right, and skip the costly returns.
Monitor
27" 1440p
Refresh
180 Hz
Items
6 picks
Under $500
Complete, ready to shop on Amazon
Choose a category to get started
Test monitors for dead pixels, burn-in, color accuracy, and more
Start TestingTake a quick quiz and get personalized recommendations matched to your needs and budget
4 questions. Get 3 personalized monitor picks.
Take the quiz5 questions. Get 3 chair picks for your body and budget.
Take the quiz4 questions. Find the perfect sit-stand desk.
Take the quiz5 questions. Build a complete gaming rig.
Take the quiz4 questions. Find the right webcam for calls or streaming.
Take the quiz5 questions. Get a complete monitor + chair + desk bundle.
Take the quiz4 questions. Mechanical, wireless, gaming, or productivity.
Take the quiz4 questions. Find your perfect gaming headset.
Take the quiz4 questions. Find your perfect TV for movies, gaming, or sports.
Take the quiz4 questions. Gaming mouse for your grip style.
Take the quiz4 questions. MacBook, Windows, gaming, or ultrabook.
Take the quiz4 questions. Pre-built gaming desktops for any budget.
Take the quiz4 questions. Dolby Atmos, budget bars, and premium audio.
Take the quizNot sure that next purchase is worth it? Run the numbers.
Enter the price and how often you'll really use it. Get your true cost per use and a straight verdict in seconds.
Expert-researched product recommendations with real Amazon links
Complete testing checklist before buying
Herman Miller Aeron, Steelcase Leap, budget picks
ASUS ROG Swift, Samsung Odyssey, 4K & ultrawide
FlexiSpot E7 Pro, Uplift V2, Fully Jarvis
Complete setups: $1K, $2.5K, $5K+ budgets
9 expert buying guides available
Quick access to our most used testing tools and comprehensive guides
3500+ word guide covering all devices: iPhones, iPads, Android phones, tablets. 47-point inspection checklist.
Read Buying GuideProfessional guide to maximize resale value. Data security, pricing strategies, and testing documentation.
Read Selling GuideEverything you need to make informed purchasing decisions
No hidden fees, no premium versions. All tools are 100% free to use.
Get immediate feedback on your devices. No waiting, no downloads required.
Avoid costly mistakes by testing before you buy. Make confident decisions.
Free browser tests for screens, audio and controllers: run them before you pay
Start Testing NowFind the perfect monitor for PlayStation 5 gaming
The most-clicked picks from our monitor, chair, TV, and headset guides. Researched picks based on specs and verified owner reviews.
Prices are approximate and change often. As an Amazon Associate, we earn from qualifying purchases.
Buying used? Test it before you pay
Inspection checklists for phones, laptops, monitors, cameras, consoles and tablets, the questions to ask the seller, a scam check and a fair-offer worksheet. Our used electronics buying guide lists 10 to 15% off for battery health of 80 to 85%: find one flaw like that before you pay and the $19 kit has paid for itself.
30-day money-back guarantee. Use it all; if it doesn't help, every dollar back.
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A display test fills your screen with solid colors, gradients and moving patterns so you can see defects: dead or stuck pixels, backlight bleed, uneven brightness, color banding and motion blur. The screen test hub links every test, and each runs full screen in your browser.
In a store, open the dead pixel test on the display model and cycle the colors. For an online order, run the tests the day it arrives and keep the box until the return window closes, since most retailers and makers only replace panels for defects reported early.
Yes. Every test on the site is free, needs no account and runs locally in your browser. Nothing is uploaded.
From published manufacturer specifications and verified owner reviews, not hands-on lab testing. Links to Amazon are affiliate links: we may earn a commission at no extra cost to you, and that never decides a pick.
