DeadPixelTest.net
Online diagnostic tool

Text Sharpness Test

Check crispness, scaling, fine detail and text rendering across the full display

Text sharpness test

Inspect text clarity, scaling, fine detail and anti-aliasing across the entire display.

The diagnostic opens only in full screen and uses clean text samples instead of the old striped background.
Direct answer

What is the Text Sharpness Test Online?

Check whether text looks crisp at your current resolution, browser zoom and display scaling, and look for blur, uneven edges or color fringing.

✓ No installation ✓ Works in compatible browsers ✓ Privacy-focused testing

How to use this test

Open the test in full screen, begin with the white or soft-gray background and check the reading sample first. Then move through the difficult character pairs, tiny text samples and 1-pixel line patterns. Switch to the dark background to see whether white text stays clean or develops halos. If one browser looks softer than another, the issue may be browser rendering rather than the display panel itself.

Practical guide

What the new test is designed to reveal

Text is one of the fastest ways to notice scaling and clarity problems. On a monitor with the wrong resolution, text may look smeared or softer than expected. Excessive sharpness enhancement can create ringing around letters. A poor rendering path can make small characters look cramped, uneven or strangely colored. By splitting the test into clean reading, character-pair, small-size and line-detail sections, the redesigned page gives users a more useful screen-quality check than a busy striped pattern.

What this test cannot confirm

This is a visual browser-based check, not a lab measurement of subpixel layout, gamma or color calibration. It helps users inspect clarity and compare settings, but it does not certify a panel.

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