Rulers

Rulers

Rulers is a free, open source screen ruler app for Windows, Mac, and Linux. It provides customizable rulers, guides, and tools for measuring objects on your screen with pixel perfect accuracy. Useful for designers, developers, and anyone needing to measure items digitally.
Office & Productivity Screen Tools
Rulers image
ruler measurement design pixel-perfect
Rulers alternatives ➤

Rulers: Free Screen Ruler App

Free, open source screen ruler app for Windows, Mac, and Linux with customizable rulers, guides, and tools for precise digital measurements.

What is Rulers?

Rulers is a free, open source screen ruler application available for Windows, Mac, and Linux operating systems. It provides a variety of on-screen rulers, guides, and tools to measure objects on your monitor with pixel-perfect accuracy.

With Rulers, you can add horizontal, vertical, or angled rulers to your screen using a variety of different measurement units including pixels, inches, centimeters, millimeters, points, picas, and custom units. The rulers can be resized, rotated, and positioned anywhere on your screen as needed. Additionally, guide lines can be enabled to measure distances between multiple on-screen objects.

The app includes several extra tools for measurement as well, such as a protractor for measuring angles, a tool for displaying the mouse cursor's exact screen coordinates, and markers for pinpointing specific positions on the rulers. All measurements can be displayed on screen as an overlay.

The simple, customizable interface makes Rulers a valuable tool for designers, developers, photographers, and anyone who needs to measure objects digitally on their computer screen. It can help ensure proper alignment, spacing, and scaling of visual elements for web, graphic design, photo editing, and many other use cases where pixel-perfect precision is necessary.

As an open source program, Rulers is completely free to download and use. It runs smoothly across operating systems without needing installation on Windows, Mac, or Linux computers. The source code is available for contributors and developers to modify and enhance as well.

Rulers Features

Features

  1. Customizable horizontal and vertical rulers
  2. Guidelines and overlays for precise alignment
  3. Built-in color picker
  4. Magnifier tool
  5. Multiple ruler sizes and styles
  6. Supports dark mode

Pricing

  • Free
  • Open Source

Pros

Free and open source

Available on Windows, Mac, and Linux

Pixel perfect accuracy

Useful for designers, developers, and anyone needing to measure digitally

Cons

Limited features compared to paid tools

Can only measure items on your screen, not physical objects

Requires manual measurements instead of smart object detection

Official Links

Official Website
https://www.omnidea.it/

The Best Rulers Alternatives

Top Office & Productivity and Screen Tools and other similar apps like Rulers

Here are some alternatives to Rulers:

PixelStick icon
PixelStick
Pixel Ruler icon
Pixel Ruler
JR Screen Ruler icon
JR Screen Ruler
KRuler icon
KRuler
JR Screen Ruler Pro icon
JR Screen Ruler Pro
Meazure icon
Meazure
Suggest an alternative ❐

PixelStick icon

PixelStick

Pixelstick is a unique light painting and photography tool used to create animated light drawings and long exposure photographs. It consists of a slim handheld wand that contains a string of bright, programmable full color LED lights.To use Pixelstick, you program an image or animation onto its LED strip using...
PixelStick image
Pixel Ruler icon

Pixel Ruler

Pixel Ruler is a handy online tool used by designers and developers to easily measure pixels on screens. It works by overlaying a transparent, customizable ruler overlay on top of the current web page or any area of the screen.Some key features of Pixel Ruler:Overlay horizontal and vertical rulers to...
Pixel Ruler image
JR Screen Ruler icon

JR Screen Ruler

JR Screen Ruler is a handy utility that provides an on-screen ruler to help you quickly measure objects on your Windows desktop. It renders a transparent, movable ruler overlay right on top of your screen, allowing you to easily measure elements in pixels, centimeters, or inches.Some key features of JR...
JR Screen Ruler image
KRuler icon

KRuler

KRuler is an open source screen ruler application designed for the Linux operating system. It provides simple yet powerful on-screen rulers to quickly measure distances, locations, and sizes of UI elements on the desktop screen.Some key features of KRuler include:Horizontal and vertical rulers availableRulers can be locked into place or...
KRuler image
JR Screen Ruler Pro icon

JR Screen Ruler Pro

JR Screen Ruler Pro is a feature-rich on-screen ruler application for Windows. It provides a variety of tools for precise on-screen measurements, making it a useful utility for graphics professionals, engineers, architects, and more.With JR Screen Ruler, you can place customizable rulers, protractors, and shape tools directly on your screen...
JR Screen Ruler Pro image
Meazure icon

Meazure

Meazure is an open-source, self-hosted web analytics platform that provides an alternative to Google Analytics. Some key features of Meazure include:Easy to install and use - Meazure can be easily deployed on your own server or infrastructure, and has an intuitive interface for configuring tracking and viewing reports.Real-time statistics -...
Meazure image
Pixel Ruler for Android icon

Pixel Ruler for Android

Pixel Ruler is a handy screen measurement tool for Android devices. As a free app, it provides an easy way to measure items displayed on your Android screen without needing physical rulers or other measuring devices.Some key features of Pixel Ruler for Android include:Overlay tools like rulers, arrows, shapes, and...
Pixel Ruler for Android image
Screen Ruler Professional icon

Screen Ruler Professional

Screen Ruler Professional is a powerful yet easy-to-use on-screen ruler and measurement tool for Windows. It enables you to measure distances, angles, areas, perimeters and more directly on your computer screen, without needing to print paper rulers.Some key features include:Multiple customizable rulers and protractors for distance, angles, areas etc.Comes with...
Screen Ruler Professional image
Pixus icon

Pixus

Pixus is a powerful photo editing and graphic design application for professionals. It provides industry-leading tools for manipulating images including:Layers and masks for non-destructive editingAdvanced selection tools like magic wand, lasso, and quick selectionHundreds of adjustment layers, filters and effectsTools for dodging, burning, sponging, cloning, healing and red eye removalRobust...
Pixus image
ReadingRuler icon

ReadingRuler

ReadingRuler is a literacy software designed to help students in grades 2-12 improve their reading skills. It provides a large library of leveled stories and passages that students can read at their own pace. As students read, ReadingRuler tracks their progress and comprehension.For teachers, ReadingRuler provides detailed reports on student...
ReadingRuler image
Measure Schmeasure icon

Measure Schmeasure

Measure Schmeasure is a free and open-source software designed to make measurement conversions easy. It supports conversions between a wide variety of measurement units including:Length units like meters, feet, inches, miles, etc.Volume units like liters, gallons, cubic meters, etc.Speed units like mph, kph, knots, etc.Temperature units like Celsius, Fahrenheit, Kelvin.Weight...
Measure Schmeasure image