A free Google tool
Zoom is a lightweight and useful extension designed to get a perfect zoom experience for users with visual needs. Once installed, the extension allows you to very simply zoom in or out on an entire webpage of content using the zoom button and mouse scroll wheel for more comfortable reading and browsing.
Thanks to the slider or by using the plus and minus buttons, users of the extensions can choose the best view for their specific needs. Sliding to the right, will zoom in on the screen.
Once you’ve achieved your preferred magnification, you can then tap Zoom’s Z icon in the extension toolbar, and the settings are maintained.