Responsive Resize icon

App Specs
File size:
2.18 MB
March 1, 2013
December 29, 2015

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Responsive Resize is a tool for aiding development and testing of responsive websites. Responsive resize works like a mini-browser with an adjustable viewport which can be altered to match the dimensions of virtually any mobile, tablet or desktop device.

Responsive Resize comes with over 40 preset virtual devices, but you can also add as many new devices as you requires.


History remembers up to 25 sites
Status bar gives load times.
Over 40 preset Mobile, Tablet & Desktop devices
Ability to create as many new devices as you require
Ability to choose from preset User Agent Strings - or enter any string you require
Rotate Device
Ability to quickly adjust the viewport
Increase or decrease the with by a set value
Light or Dark application theme
Fullscreen mode
Devices panel
Preferences panel

What's New
Added user-agent strings for iOS7 (iPhone and iPad) and user-agent string for Safari 7 (Mac)

Responsive Resize (com.midwinter-dg.responsive-resize) is a Mac software application that has been discovered and submitted by users of The latest version that our users have reported running on their systems is Responsive Resize 5.

Operating System: Mac

Minimum OS version: 10.8

Copyright: Copyright (c) 2013 Midwinter Duncan Grant. All rights reserved.