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Top Micro-SaaS Starters & Backends in 2026
Production-ready boilerplates, serverless databases, and transactional APIs to launch a SaaS in 48 hours.
Supabase
Top Pick
Freemium
The open-source Firebase alternative with Postgres, Auth, Realtime, and Vector embeddings
Best For: Indie hackers building SaaS web applications, mobile backends, and RAG databases with zero database DevOps.
Resend
Freemium
Email for developers with first-class React components and world-class deliverability
Best For: SaaS builders wanting frictionless transactional emails (welcome, magic link, receipt, notifications).
FraudShield
Top Pick
Freemium
B2B disposable email detection and MX verification API to stop fake SaaS signups
Best For: Indie hackers protecting free trials, newsletters, and authentication gates from abuse.