Number 1: 
MJJ Tools
160+ free online tools and utilities for calculations, conversions, and productivity
- Online Tools & Utilities
- DR 9 no change since last check
Online Tools & Utilities
ScreenSize.net
Live screen size checker and display comparison tools
- Community votes
- 0
- DR by Ahrefs
- 26 +1 (up) since last check
Ahrefs Domain Rating benchmarked 12 Nov 2026, rebuilt 11 Nov 2026.
Free utilities to check browser screen dimensions, measure physical display sizes, compare screens, and access source-backed device specifications.
What it is
ScreenSize.net provides a set of free tools for checking screen sizes and display information. The live screen size checker reports browser-reported screen and viewport dimensions in CSS pixels, while also allowing users to measure physical screen inches. The platform includes calculators for PPI and aspect ratio, a true-size comparison tool to understand size differences between displays, and source-backed reference charts for phone, tablet and laptop devices. All detection runs locally in the user's browser, with only anonymous aggregate statistics collected to power comparison features.
What it is built with
- Live browser screen dimension detection
- Physical screen measurement in inches
- Screen comparison tool with size visualization
- PPI and aspect ratio calculators
- Source-backed device specification charts
- Device pixel ratio detection
- TV size calculator
- Online ruler tool
- Manufacturer-sourced device database
Pricing
Pricing model: Free
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ScreenSize.net metrics
| Metric | Value |
|---|---|
| Domain Rating | 26 +1 (up) since last check |
| Trust Flow | 4 no change since last check |
| Citation Flow | 31 no change since last check |
| Referring domains | 141 no change since last check |
| External backlinks | 1,441 no change since last check |
Ahrefs Domain Rating benchmarked 12 Nov 2026, rebuilt 11 Nov 2026. Main build topic: Computers/Software/Operating Systems (3). Majestic benchmarked 24 Oct 2026, rebuilt 24 Oct 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
ScreenSize.net domain build sheet
Open the build sheet
| Domain age | 5 months |
|---|---|
| Registered | |
| Expires | |
| Registrar | Squarespace Domains II LLC |
| DNSSEC | Not signed |
ScreenSize.net after-launch build log
Since ScreenSize.net launched on Maker Launches on 24 October 2026, these are the figures we have tracked.
- Domain Rating (Ahrefs)
- 26 +3 (up) since launch
- 23 at launch (24 Oct 2026), 26 on 12 Nov 2026
- Trust Flow (Majestic)
- 4
- First measured 24 Oct 2026
- Referring domains (Majestic)
- 141
- First measured 24 Oct 2026
Day 20 since launch. Next receipt: day 30, 23 Nov 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
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Questions from the bench
- What is my screen size?
- Screen size has two meanings: the physical size of your display measured diagonally in inches, and the screen environment your browser reports in pixels. This page gives the complete overview for both measurements.
- What is the difference between screen resolution and viewport size?
- Native resolution counts the physical panel pixels. The screen value is what the browser reports in CSS pixels. The viewport is the page-rendering area inside the window where CSS media queries and breakpoints respond to that area rather than the full screen.
- Why does my screen show fewer pixels than advertised?
- Operating-system scaling and browser zoom can change the reported CSS dimensions without changing the physical panel. Multiplying by device pixel ratio gives a rendering estimate but not a guarantee of native resolution.
- Is any of this data sent to your servers?
- The live detection runs in your browser. Anonymous aggregate screen-environment buckets are counted to power comparison stats, but raw visits, IP addresses, user IDs, full user-agent strings, copied reports or shared report links are not stored.
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