MongoDB Community (self-hosted) vs SurrealDB
Both are alternatives to MongoDB Atlas. Here's how they stack up — verified facts, no spin.
Also searched as SurrealDB vs MongoDB Community (self-hosted) — same comparison, one verdict.
MongoDB Community (self-hosted)
The same database, on your own servers, for the price of the servers.
The most overlooked option: run MongoDB yourself. It is the identical database engine, free of charge, and for the overwhelming majority of users the SSPL restriction is irrelevant — it only bites if you offer MongoDB itself as a service to third parties. Read the licence against your own situation rather than the argument about it. What you give up is Atlas: no managed backups, no automatic failover configuration, no Atlas Search, and you own upgrades and monitoring. What you keep is every query and every driver, unchanged.
SurrealDB
Documents, graph and relational in one engine — but check the licence.
SurrealDB is a Rust multi-model database combining document, graph and relational access through a single SQL-like language, with real-time queries and permissions built in. It is genuinely interesting engineering and around 32.8k stars. One correction that matters and that most listings get wrong: the core is licensed under the Business Source License 1.1, not an open-source licence. BSL restricts offering it as a competing service and converts to Apache-2.0 after a set period. For internal use that is usually fine; for anyone building a product on top, read it first.
Side by side
| MongoDB Community (self-hosted) | SurrealDB | |
|---|---|---|
| Sovereignty Score | 70 | 68 |
| Open source | No | No |
| Self-hostable | Yes | Yes |
| Local-first | Yes | Yes |
| License | SSPL (source-available, not OSI open source) | BSL 1.1 (source-available, converts to Apache-2.0 over time) |
| Pricing | Free to download and run. You pay for servers and the people who operate them. | Free to self-host under BSL terms. Managed cloud is paid. |
MongoDB Community (self-hosted) edges it on the Sovereignty Score, but the right pick depends on the trade-offs below.
MongoDB Community (self-hosted)
Strengths
- +Identical engine — zero application changes
- +No cluster bill; a modest server handles a lot
- +Full control over version, configuration and data location
- +SSPL restrictions do not apply to ordinary internal use
Trade-offs
- −SSPL is not OSI-approved open source, and that matters to some procurement teams
- −You own replica sets, failover, backups and upgrades
- −No Atlas Search, Vector Search or Triggers
- −Operating MongoDB well across zones is a genuine specialism
SurrealDB
Strengths
- +Document, graph and relational in a single engine — genuinely rare
- +Real-time queries and row-level permissions built in
- +Rust, fast, and can embed directly in an application
- +Converts to Apache-2.0 on a published schedule
Trade-offs
- −BSL 1.1 is NOT open source, despite how it is usually listed
- −Young relative to Postgres or MongoDB
- −Smaller ecosystem and fewer battle-tested deployments
- −Multi-model flexibility is also more ways to model something badly
More MongoDB Atlas head-to-heads
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Facts verified 2026-08-07. Licenses and pricing change — spotted something out of date? That's a correction we want.