FerretDB/FerretDB

Health v2 · maintenance only

Adoption not part of the score

11056 stars · 486 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FerretDB is an open-source MongoDB alternative that acts as a proxy translating the MongoDB 5.0+ wire protocol into SQL, backed by PostgreSQL with the DocumentDB extension. It aims to be a drop-in replacement for MongoDB workloads while keeping the stack fully open source under Apache-2.0.

Use cases

• run a mongodb-compatible database without sspl licensing
• self-host an open source document database
• migrate apps off mongodb to postgres-backed storage
• use existing mongodb drivers and tools with postgresql
• drop-in replacement for mongodb 5.0+ workloads

When to choose

• you need MongoDB wire-protocol compatibility with a permissive open-source license
• you want document-database semantics on top of PostgreSQL infrastructure
• your app uses standard MongoDB drivers and doesn't rely on advanced MongoDB features

When to avoid

• you depend on advanced MongoDB features not yet supported by FerretDB
• you need guaranteed full MongoDB compatibility for production-critical workloads
• you prefer a native document store rather than a translation proxy

Facets

service · maturity active

database proxy serialization databases backend self-hosted developer-tools go self-hosted windows cross-platform mongodb-alternative document-database wire-protocol postgresql bson drop-in-replacement open-source docker linux macos

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