Dev tools · alternatives · 2026

24 alternatives to Window Resizer for Safari

Test responsive designs, split windows, customize sizes

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Window Resizer for Safari launched in 2024; newer entries below may have overtaken it.

1
Online Video Resizer▲322
Resize any video perfectly for social media
2017 · kapwing.com · its alternatives →
2
Resizer▲151
Double the size of your image while reducing noise
2021 · resizer.in · its alternatives →
3
Promo.com Free Image Resizer▲234
Automatically optimize images for web & social media (free!)
2018 · promo.com · its alternatives →
4
Spectacle▲458
Move and resize windows with ease on Mac.
2014 · spectacleapp.com · its alternatives →
5
Resizer▲24
Dynamic resource for testing out your responsive UI
2016 · design.google · its alternatives →
6
Resizer2 – i3/KDE window movement on Windows▲40
I was really frustrated when I needed to go back to windows after using KDE for a few years, and becoming used to the Meta+Mouse keybinds for resizing and moving windows around, so I made a script for it that lets me use those shortcuts on windows too, maybe someone here finds it useful too? I also really need help with a name for the project, resizer2 doesn't sound that cool and catchy :(
2024 · github.com · its alternatives →
7
GIF Resizer▲270
Create animated GIFs and resize GIFs too big to tweet!
2016 · its alternatives →
8
Image Resizer 2.0▲120
Resize your images in 3 easy steps for free, by Promo.com
2021 · promo.com · its alternatives →
9
Resizing.app▲306
Your images always fit any requirements you may meet online
2020 · resizing.app · its alternatives →
10
Rectangle▲95
Move & resize windows in MacOS via shortcuts & snap areas
2019 · rectangleapp.com · its alternatives →
11
App Icon Resizer▲173
A service to resize your app icon to all needed resolutions
2015 · resizeappicon.com · its alternatives →
12
Free Image Resizer▲142
Resize Image in one click for all social media platforms
2024 · its alternatives →
13
New Responsive Editor by Bubble▲270
Design beautiful web apps for any screen size.
2022 · its alternatives →
14
Lasso - window manager for macOS▲246
Easily organize windows with just a few clicks
2023 · thelasso.app · its alternatives →
15
Image Resizer▲12
Resize your images quickly, perfect every time.
2023 · goonlinetools.com · its alternatives →
16
HazeOver: Distraction Dimmer▲403
Focus on one app by dimming all the background windows
2015 · hazeover.com · its alternatives →
17
Split Screen Ultimate▲104
Easiest way to resize and manage windows on your Mac.
2015 · splitscreenapp.com · its alternatives →
18
Responsivize▲109
A must-have tool to develop responsive websites
2021 · virejdasani.github.io · its alternatives →
19
Stylizer▲95
Style websites in a fraction of the time.
2015 · skybound.ca · its alternatives →
20
WindowResizer▲2
Quickly resize the active window to your predefined.
2025 · github.com · its alternatives →
21
Bulk Image Resizer▲10
100% Free, No Login, Privacy Friendly
2024 · imagetoolshub.com · its alternatives →
22
Multiwindows Browser for iOS▲83
Desktop-like draggable, resizable browser windows for iOS
2023 · multiwindowbrowser.vercel.app · its alternatives →
23
Iconizer – Effortlessly resize iOS icons▲16
Effortless tool to resize iOS icons. Contribute to matteosandrin/iconizer development by creating an account on GitHub.
2016 · github.com · its alternatives →
24
UltraWideo 2.0▲71
Cross-browser extension that manipulates video aspect ratio.
2020 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →