The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.

Rivestack is described as 'Managed PostgreSQL with pgvector for AI vector search. Dedicated NVMe servers, automated backups, HA failover. From $0/month' and is an website. There are four alternatives to Rivestack, not only websites but also apps for Self-Hosted and SaaS. The best Rivestack alternative is Supabase, which is both free and Open Source. Other great sites and apps similar to Rivestack are Neon Postgres, InstantDB and Heroku Postgres.
The open source Firebase alternative. Supabase adds realtime and restful APIs to Postgres without a single line of code.

The fully managed serverless Postgres with a generous free tier. We separate storage and compute to offer autoscaling, branching, and bottomless storage.
Instant is for building real-time and offline-enabled applications. We make it easy to build collaborative products like Notion or Figma.
A powerful, reliable, and durable open-source SQL-compliant database, PostgreSQL is the datastore of choice for serious applications. Now it is available in seconds with a single click. Never worry about servers. Never worry about config files. Never worry about patches.