I've been using this free tier for a while now and have found this extremely useful. Requires a credit/debit card to sign up, however you are not charged unless you manually enable billing (unlike AWS - using it is scary!). They do, like every other service, have a $1 authorisation when you sign up - however this is cleared quickly.
This comes with a bunch of things, but my favourite is the free VMs. You can have:
- 2 AMD-based VM with 1/8 OCPU and 1GB RAM each (meh)
- 4 Arm-based "Ampere A1 Cores" with 24GB across them
- 2 block volumes, up to 200GB
I just have 1 Arm VM running with 24GB of RAM and a 200GB volume. Runs really well with amazingly speedy networking.
I wonder if you can spin a huge instance and mine crypto utilising the $300 š