ElephantSQL
https://www.elephantsql.com/images/postgresql-as-a-service-elephantsql.png
ElephantSQL - PostgreSQL as a Service
PostgreSQL
as a Service
Perfectly configured and optimized PostgreSQL
database
s ready in 2 minutes.
Reference
オンラインのDBサービスのElephantSQL(PostgreSQL)を使う - Qiita