How does a freelancer test a responsive website?

Question

Freelance

Good day to all.
The best test of a responsive site is the device itself, but a freelancer obviously doesn’t have that many devices. How to qualitatively test an adaptive site, so that you can give the work to the customer with confidence?
P/S.
What methods do you use in your freelancing practice?
Chrome - F12 - Ctrl + Shift + M (device mode)
I've been testing this way for quite a long time, but how accurate is this method, can I rely on it ?, it's not just that, there are paid sites like browserstack.com

Answer 1

Chrome - F12 - Ctrl+Shift+M(device mode)

Answer 2

I first use webkit developer tools, then I check in the browser stack.
ios can be checked in xcode ios simulator, android can be checked in genymotion, there is also Opera Mobile Classic Emulator

Answer 3

For a quick test of several resolutions at once, there is also a great web-developer plugin, the Resize tab .
For an already laid out site, you can still see an interesting service from Microsoft .

Answer 4

The new safari also has a very convenient tool for such testing.

Answer 5

You can just narrow the chrome and that's it!

Answer 6

In addition to the above:
- virtual machine + mac os + development environment with iphone / ipad emulator
- Android SDK