I'm looking for a realiabale placement test on the computer to use in our language school

Ideally for levels from beginner to advanced

The test should be offline so we don't need to rely on the internet

I have been experiementing with generating tests myself but have found the available software to be slightly limiting when trying to include audio etc. into the test (Epractice labs)

If you have any experience in generating tests i would also be interested!

Greetings from Barcelona