Couchbase Alternatives

If you're looking for a Couchbase alternative, SingleStore is a great choice. It's a real-time data platform for intelligent applications that supports multiple data models, including JSON, time-series, vector and full-text search. SingleStore combines transactional and analytical data in one engine, offers high-throughput streaming data ingestion and millisecond query performance, and supports flexible scaling with read replicas and separate storage and compute.

Another alternative worth considering is Xata, a serverless data platform based on PostgreSQL. It includes serverless Postgres, automatic scaling, zero-downtime schema migrations and elastic scaling. Xata also supports robust integrations with frameworks and tools like Astro, Next.js and Svelte. The service offers a generous free tier with high availability, large amounts of data storage and AI queries, so it's a good option for projects that are growing.

If you want a Postgres-based option with AI abilities, EDB Postgres AI could be the way to go. This platform combines transactional, analytical and AI workloads on the Postgres engine, with native AI vector processing, an analytics lakehouse and high availability. It can be deployed in multiple ways and is designed for hybrid or multi-cloud environments, so it's a good option for bringing AI and analytics to Postgres-based workloads.

Last, Supabase is a powerful open-source alternative to Firebase. It includes a Postgres database, user authentication, instant APIs, real-time subscriptions, storage and vector embeddings. Supabase supports several frameworks and has a free tier with unlimited API requests and large amounts of database storage, so it's a good option for building production apps.