Moving to Australia without a job offer is more difficult but is still a possibility for some. If you are a skilled worker and have experience in an occupation on the skilled occupation list, as well as meeting a number of other requirements, you may be granted a visa.
You can also be sponsored by an Australian citizen or permanent resident, or if your partner meets the eligibility criteria for a visa, you will be allowed to move with them. Sponsors may be required to undertake some responsibilities such as financial aid for a selected period of time depending on the visa granted.