Open Source Alternatives

Alternatives to MongoDB Atlas

Managed MongoDB cloud database service.

1 drop-in replacement3 building blocks
mongodb.com/atlas ↗

MongoDB Atlas is a trademark of its respective owner.

Updated Apr 2026

Drop-in Replacements

Ranked by Discovery Score

1

FerretDB

1375% coverage

Truly open source MongoDB alternative

FerretDB gives you MongoDB wire protocol compatibility on top of Postgres, so you can use MongoDB drivers and queries without the SSPL license. Your MongoDB queries work, your drivers work, but underneath it's storing data in a real Postgres database.

10.9k ★+12/wkGoApache License 2.0

Building Blocks

MongoDB Atlas is a platform — it bundles multiple capabilities into one subscription. These tools each cover one piece. Teams often assemble 2–3 of them instead of paying for the full suite.

SurrealDB

27covers: document store45%

Scalable distributed document-graph database for the realtime web

RethinkDB

14covers: document store45%

Realtime database with push queries

ArangoDB

11covers: document store45%

Native multi-model database

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Including when one of these alternatives ships a major update. Free.