SurrealDB
A scalable, ACID‑compliant NoSQL database with SQL‑like queries
Alternatives
Choose PostgreSQL if…
- you need complex joins and transactional guarantees
- you rely on a massive ecosystem of extensions and tools
- you prefer a free, open‑source license with no vendor
- you have DB‑admin expertise to manage scaling yourself
- you don’t require built‑in real‑time WebSocket notifications
Choose ArangoDB if…
- you need built‑in vector embeddings alongside graph queries
- your app requires automatic knowledge‑graph construction
- you want a free open‑source community edition for production
- you need full‑text search without adding a separate engine
- you prefer high‑availability enterprise features without
Choose Gel if…
- you need strict type safety and auto‑generated client code
- you want built‑in OAuth and passkey authentication
- you plan to embed AI‑generated vector embeddings in‑database
- you prefer zero‑config local development on PostgreSQL
Choose TiDB if…
- you need to lift‑and‑shift an existing MySQL app
- you run mixed transactional‑analytical workloads on one
- you deploy via Kubernetes and want TiDB Operator support
- you require Raft‑based replication for strong consistency
Choose Supabase if…
- you need PostgreSQL compatibility and existing SQL tooling
- you want a ready‑made RESTful endpoint for every table
- you prefer open‑source software you can self‑host without
- you already use PostgreSQL extensions or need complex joins
How to Decide
SurrealDB is a scalable, ACID‑compliant NoSQL database that offers SQL‑like queries and is used primarily by developers and startups. The alternatives split into a few clear camps: TiDB leans into MySQL‑compatible protocol and HTAP engine for hybrid transactional/analytical workloads; PostgreSQL emphasizes advanced SQL and JSONB support with a massive extension ecosystem; Supabase is chosen for its built‑in real‑time WebSocket layer and auto‑generated RESTful API on top of Postgres.
When weighing these options, focus on (1) query‑language fit – whether you need pure NoSQL flexibility with SQL‑style syntax (SurrealDB) or full relational SQL with extensions (PostgreSQL, TiDB, Supabase); (2) real‑time data delivery – native WebSocket subscriptions in SurrealDB versus Supabase’s real‑time layer and TiDB’s HTAP capabilities; (3) scalability model – automatic horizontal sharding in SurrealDB and TiDB versus scaling Postgres instances in Supabase; (4) licensing and cost – SurrealDB’s freemium model with open‑source core versus fully open‑source TiDB and PostgreSQL and Supabase’s open‑source stack with free tier; and (5) deployment flexibility – single‑binary on‑prem/cloud for SurrealDB, Kubernetes‑native operator for TiDB, and managed SaaS or self‑hosted Postgres for Supabase.
All Alternatives
“SurrealDB offers a true multi‑model NoSQL engine with document, graph and relational capabilities, matching ArangoDB's core purpose.”
“SurrealDB provides a schema‑typed, ACID‑compliant NoSQL store with SQL‑like queries and built‑in graph links, similar to EdgeDB's EdgeQL.”
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