Dev tools · alternatives · 2026
24 alternatives to Test your website on 180+ device viewports (with multi-device mode)
Hey HN! We do a lot of frontend testing, and one thing we find frustrating is the limited tooling available to observe how a URL renders on different viewports/devices simultaneously. For example, we can use Chrome Inspector's "Device" previews, but we run into the following: - Chrome doesn't keep those devices/viewports up to date, and adding new ones is pretty annoying (we've open sourced our collection of 180+ viewports/dimensions under MIT). - You can’t see multiple viewports at once (and it’s cumbersome switching back and forth) - When you notice a problem, there's no…
Viewport Tester allows frontend developers to simultaneously view how a website renders across 180+ device viewports and screen sizes. Rather than switching between single previews in browser developer tools, users can… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Test your website on 180+ device viewports (with multi-device mode) launched in 2024; newer entries below may have overtaken it.
- 1
Test your site at different screen resolutions & devices.
2015 · its alternatives →
- 2
Viewport▲88All in one user testing tool for websites on your iOS device
2016 · apps.apple.com · its alternatives →
- 3
View multiple screen dimensions in one view
2019 · chromewebstore.google.com · its alternatives →
- 4
U-Eyes▲121A Chrome Extension for simulating and capture mobile view
2023 · eyeballer.dev · its alternatives →
- 5
Mobile FIRST▲207Smartphone and tablet simulator in the browser
2023 · webmobilefirst.com · its alternatives →
- 6
- 7
See how a webpage renders across many browsers & devices
2018 · chromewebstore.google.com · its alternatives →
- 8
- 9
Viewports▲97Figma plugin to set screen sizes with market share in mind
2019 · figma.com · its alternatives →
- 10
Responsive View▲216Test your responsive design across different devices
2016 · responsiv.eu · its alternatives →
- 11
Anonymous aggregate viewport statistics from ScreenSize.net browser sessions, with recent viewport, device pixel ratio and browser distributions.
Sep 2026 · screensize.net · its alternatives →
- 12
Preview multiple breakpoints at once — no extensions needed
Feb 2026 · utilifyzone.com · its alternatives →
- 13
- 14
Compare Figma designs with your build using browser overlays
2020 · figma.com · its alternatives →
- 15
- 16
Plugin to easily test your design in different viewports
2020 · figma.com · its alternatives →
- 17
Check how responsive is your website across device sizes
2018 · its alternatives →
- 18
Test your website load speed from 6 locations at once
2017 · its alternatives →
- 19TY
2013 · mobilewebsim.jonahkatz.me · its alternatives →
- 20
- 21
Test any website on desktop, mobile, and tablet
2020 · usepastel.com · its alternatives →
- 22
- 23
Save your time! enjoy more webs(videos) at same time
2018 · chromewebstore.google.com · its alternatives →
- 24
Save your time! enjoy more webs(videos) at same time
2018 · viewport.group · 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 →