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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.

Track releases GitHub Website
Go Latest v2.7.0 · 8mo ago Security brief →

Features

  • Acts as a MongoDB 5.0+ wire‑protocol server
  • Converts BSON queries to SQL using PostgreSQL + DocumentDB extension
  • Drop‑in compatibility with most 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
View release on GitHub
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
View release on GitHub

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Install & Platforms

Install via
docker

Community & Support

Slack Community

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Alternative to

MongoDB

Beta — feedback welcome: [email protected]