Golden Section is an adjustable transparent design grid for web, graphic, logo and UI designs. It allows you to control and correct the sizes and proportions in your design project using the golden section ratio. Key features: multiple grid modes, including section grid and square grid; adjustable user interface for GUI, web and image design; full controllability over the mouse and keyboard; advanced settings for power users

Measure the distance between two points on your screen, get the exact location and size of an element on a web page, measure in pixels, centimeters or millimeters, both horizontally and vertically? Screen Ruler is your choice.

How to find out the size of something on the screen or to take a closer look at it?

Use Perfect Screen Ruler. You will easily find out the size of any item on the screen, for instance, the size of a button or the distance between two points. You will be able to enlarge the image if necessary. It is useful when you measure some small images or when you need to study the enlarged area of the screen in detail.

A Ruler for Windows is a free on-screen pixel ruler for your PC. It provides you your choice between a rich woodgrain ruler, or at the touch of a button, a clear see-through plastic ruler. A Ruler for Windows is fun to learn and very easy to use.

Paraben's LAN Charter is an easy-to-use design program that makes creating network diagrams a snap. Start producing professional drawings instantly using templates, symbols, and clip-art. Export your diagram as an image. Import graphics or your own clip-art. Full zoom, snap grid, ruler bars, and many other standard design tools make it so you don't have to be a professional designer to map out your network.

This is toolkit that allows you quickly measure anything on your screen, picking the colour value from any pixel of the screen and alter or produce your own colors with the Photoshop-style Color Picker.
This program might be useful for web developers who often face the need to quickly measure the size of an object or the space between objects on the screen up to a pixel, quickly detect the color in an HTML code or alter its HSB, RGB components.

JFDraw is a pure Java based graphics application and library package.It can help you to complete your mechanical, electronic, architectural graphs drawing applications, or even business process or workflow graphs issues.

Golden Section is an adjustable transparent design grid for web, graphic, logo and UI designs. It allows you to control and correct the sizes and proportions in your design project using the golden section ratio. Key features: multiple grid modes, including section grid and square grid; adjustable user interface for GUI, web and image design; full controllability over the mouse and keyboard; advanced settings for power users

A tool to measure distances and angles on the desktop.
The distances can be measured in pixel, cm, inch, points or twips and the angle in radiant or degree.
The ruler is almost transparent so you can have it on the screen, while you are working with the applications below.
Additionally it has a screen loupe and a RGB value window.
You can also draw points, lines, rectangles, polylines, bitmaps and text as temporary objects on the screen.

Build linear measurement skills, with English and metric rulers. This multimedia program uses the Microsoft Agent Peedy, a parrot character. Printed worksheets and tests can also be generated.