Best Convex Alternatives

Open-source Firebase alternative providing a full backend-as-a-service on PostgreSQL. Auto-generated REST and GraphQL APIs from your schema, real-time subscriptions, built-in auth with 20+ social providers and Row Level Security, S3-compatible file storage with CDN, and Deno-powered Edge Functions. Visual dashboard with SQL editor and table editor. Supports pgvector for AI apps. Self-hostable or managed with a generous free tier. 75K+ GitHub stars.

Serverless Postgres platform separating storage and compute for branching, autoscaling, read replicas, instant restore, and scale-to-zero workloads. Neon works with standard PostgreSQL clients and ORMs, supports extensions such as pgvector, and sits inside a broader Neon backend platform with Auth, Data API, Functions, Object Storage, and AI Gateway features.

Edge-hosted distributed database built on libSQL (an open-source fork of SQLite) designed for low-latency data access worldwide. Features multi-region replication, embedded replicas that sync to your application server for microsecond reads, database branching for development workflows, and point-in-time recovery. Ideal for edge computing, serverless functions, and mobile apps. Compatible with SQLite ecosystem tooling. Generous free tier with 9GB storage and 500 databases.