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Start NowScreen Tester Online v1.7 Free Online Screen Test
Wondering if your screen has defects? Get a free online checkup for your monitor! This site provides completely free professional screen testing services, including: solid color tests, backlight bleed tests, interference tests, focus tests, breathing effect, contrast, color levels, saturation, and more. No download or installation required, ready to use, permanently free!
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Content Resolution:1912x914
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This testing tool usually won't cause any damage to your display device and cannot replace professional testing equipment. Display devices typically contain high voltage - please do not attempt to repair your display device unless you are a professional. The test results are for reference only, and we assume no responsibility for any content or results from this site.
This site provides free screen testing, free screen detection, free monitor testing, free online screen test, free dead pixel detection, free backlight bleed test, free screen dead pixel detection, free monitor testing services. No software download or installation required, free to use by opening the webpage, supports monitors, laptops, mobile phones, tablets and all types of screen testing, permanently free!
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68.63%
(175/255)71.76%
(183/255)74.90%
(191/255)78.04%
(199/255)81.18%
(207/255)84.31%
(215/255)87.45%
(223/255)90.59%
(231/255)93.73%
(239/255)96.86%
(247/255)84.31%
(215/255)85.88%
(219/255)87.45%
(223/255)89.02%
(227/255)90.59%
(231/255)92.16%
(235/255)93.73%
(239/255)95.29%
(243/255)96.86%
(247/255)98.43%
(251/255)92.16%
(235/255)92.94%
(237/255)93.73%
(239/255)94.51%
(241/255)95.29%
(243/255)96.08%
(245/255)96.86%
(247/255)97.65%
(249/255)98.43%
(251/255)99.22%
(253/255)96.08%
(245/255)96.47%
(246/255)96.86%
(247/255)97.25%
(248/255)97.65%
(249/255)98.04%
(250/255)98.43%
(251/255)98.82%
(252/255)99.22%
(253/255)99.61%
(254/255) -
0.39%
(1/255)0.78%
(2/255)1.18%
(3/255)1.57%
(4/255)1.96%
(5/255)2.35%
(6/255)2.75%
(7/255)3.14%
(8/255)3.53%
(9/255)3.92%
(10/255)0.78%
(2/255)1.57%
(4/255)2.35%
(6/255)3.14%
(8/255)3.92%
(10/255)4.71%
(12/255)5.49%
(14/255)6.27%
(16/255)7.06%
(18/255)7.84%
(20/255)1.57%
(4/255)3.14%
(8/255)4.71%
(12/255)6.27%
(16/255)7.84%
(20/255)9.41%
(24/255)10.98%
(28/255)12.55%
(32/255)14.12%
(36/255)15.69%
(40/255)3.14%
(8/255)6.27%
(16/255)9.41%
(24/255)12.55%
(32/255)15.69%
(40/255)18.82%
(48/255)21.96%
(56/255)25.10%
(64/255)28.24%
(72/255)31.37%
(80/255) 
- Test Complete