Oracle: Using Oracle Cloud Infrastructure (OCI) for free

"Oracle Cloud is a cloud computing service offered by Oracle Corporation providing servers, storage, network, applications and services through a global network of Oracle Corporation managed data centers. The company allows these services to be provisioned on demand over the Internet."

If you want to dive into Oracle Cloud Infratructure, you won't have to pay much money. Some resources are always free, like

• 2 compute instances with
  • 1 CPU
  • 1 GB of RAM
• 1 to 4 ARM compute instances with a sum of
  • 4 ARM CPUs
  • 24 GB of RAM
• 2 databases for these workload types:
  • Autonomous Data Warehouse
  • Autonomous Transaction Processing
  • Autonomous JSON Database
  • APEX Application Development
• 1 network load balancer
• 1 load balancer
• 1 MySQL HeatWave instance with
  • 50 GB of storage
  • 50 GB of backup storage
• NoSQL
  • up to 3 tables
  • up to 25 GB storage per table

and many more. You can check the complete list here.

Please keep in mind, that some of these ressources are stopped when you don't access them a while, i. e. Autonomous Databases are stopped if you don't access them for one week...