Just WAKE up or Just WOKE up?

Both are possible. (unless you want to start a sentence with 'Just woke up')

Try to make a sentence with each one.
Teachers: We supply a list of EFL job vacancies
Thanks for the info.
Just wake up
Rachel NoelJust WAKE up or Just WOKE up?
Try out our live chat room.
He has to Wake up, the person is still asleep,
He just Woke up, He was asleep.
Just woke up was a great help... thank you
I just woke up to check my patients
Students: We have free audio pronunciation exercises.