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FerretDB

NoSQL & Document

Open‑source MongoDB wire‑protocol proxy that translates queries to PostgreSQL with the DocumentDB extension, providing a drop‑in replacement for MongoDB.

Go Latest v2.7.0 · 6mo ago Security brief →

Features

  • Acts as a MongoDB 5.0+ compatible proxy
  • Converts BSON wire protocol calls to SQL using PostgreSQL + DocumentDB extension
  • Drop‑in replacement for many MongoDB use cases
  • Supports standard MongoDB drivers and tools

Recent releases

View all 5 releases →
v2.7.0 Breaking risk
Breaking changes
  • Prometheus metrics and OpenTelemetry traces changed; not stable
Notable features
  • Basic MCP server support
  • PostgreSQL connection reuse
  • SQL query tracing
v2.5.0 Breaking risk
Breaking changes
  • Prometheus metric names and HELP texts changed; metrics marked as unstable
Notable features
  • DocumentDB RPM packages for RHEL
v2.3.0 New feature
Notable features
  • Telemetry configuration for embedded FerretDB
  • DocumentDB compatibility improvements

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About

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Install & Platforms

Install via
docker
Platforms
linux macos windows arm64

Community & Support

Alternative to

MongoDB

Beta — feedback welcome: [email protected]