
Create iOS and Android apps with React and Ionic

iruler.net
Online Ruler
Ruler.im
On-Screen Ruler
Online Ruler pro
Gnome ScreenRuler
Screen Ruler Professional
Free online ruler tool to measure anything on your screen with pixel-perfect accuracy. Calibrate with auto-detect, screen diagonal, or credit card. Supports cm, mm, inches, and pixels.

Website, pricing, platforms and company facts side by side.
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| Website | reactionic.github.io | onlineruler.in |
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| Platforms | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of React-Ionic yet.
Online Ruler is a free, easy-to-use browser-based tool that lets you measure objects directly on your screen without installing any software. Whether you need to measure an object, check the dimensions of a design, or get a quick measurement in your daily work, Online Ruler provides a simple way...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing React-Ionic and OnlineRuler.in.
OnlineRuler.in's answer:
The primary audience includes students, designers, developers, teachers, and everyday users who need to measure objects or elements displayed on a screen. It is also useful for people who need quick measurements without downloading a separate application.
OnlineRuler.in's answer:
Free Online Ruler lets users measure objects directly on their screens using a simple browser-based tool. It supports centimeters, millimeters, inches, and pixels, with calibration options to help users get accurate measurements for their screen.
OnlineRuler.in's answer:
Free Online Ruler offers a simple way to measure on-screen objects without installing software. Users can access it directly from their browser, choose from multiple measurement units, and calibrate the ruler to suit their screen. It is convenient for quick measurements at no cost.
OnlineRuler.in's answer:
Free Online Ruler was created to make on-screen measurements simple and accessible. Instead of installing a dedicated application or searching for a physical ruler, users can open the website and measure directly in their browser. The goal is to provide a practical, easy-to-use tool for everyday measuring needs.
OnlineRuler.in's answer:
OnlineRuler.in's answer:
Free Online Ruler is available for individual users, students, designers, developers, and anyone who needs quick on-screen measurements. We do not currently have publicly identified major business customers.
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