Online Protractor Tool
A simple and free online tool for angle measuring. Use the button below to upload or take a photo. Then move the image to the desired location, and measure the angle with the protractor.
What Is the Purpose of This Tool?
This tool is meant as a useful resource to help people easily measure angles online. The tool is perfect for students who need to use a protractor for their homework or for DIY makers. Needing to know the precise angle is always useful, and our tool makes sure that anyone can do so.
How Do I Use This Tool?
The first way to use this tool is to simply open the page on a mobile device. This gives the user access to a protractor without needing to buy one. Using the x- and y-axes and the needle, anyone is able to draw precise angles for homework or DIY projects.
Additionally, the tool can be used to measure an angle in an image. To do this, you can upload an image or take a photo using the top button. Then you have the option to move the image. This allows you to rotate, zoom, or drag the image around. Afterward, you can switch back to moving the protractor, which locks the image in place. This is done to avoid offsetting the image while the user is moving the protractor to measure the angle.
If you want to change or remove the uploaded image, you can do so using the top button as well. Once an image is uploaded, the top button changes to reveal a "Change Image" button and a "Clear" button.