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Open-source alternatives to MongoDB

Compare community-driven replacements for MongoDB in document databases workflows. We curate active, self-hostable options with transparent licensing so you can evaluate the right fit quickly.

MongoDB logo

MongoDB

MongoDB is a distributed NoSQL database supporting JSON-like document storage, scalability, flexible schemas, indexing, and querying, used for modern web and mobile app development.Read more
Document Databases
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Key stats

  • 8Alternatives
  • 8Active development

    Recent commits in the last 6 months

  • 4Permissive licenses

    MIT, Apache, and similar licenses

Counts reflect projects currently indexed as alternatives to MongoDB.

All open-source alternatives

CouchDB logo

CouchDB

Reliable, multi-master JSON database with built-in replication

Active developmentPermissive licenseFast to deployErlang

Why teams choose it

  • Multi-master replication with conflict resolution
  • HTTP/JSON API for any language
  • Fauxton web UI for admin and monitoring

Watch for

Erlang runtime may be unfamiliar to new contributors

Migration highlight

Offline-first mobile app

Users can create, edit, and view data without network, syncing automatically when connectivity returns.

FerretDB logo

FerretDB

MongoDB‑compatible proxy that runs on PostgreSQL as a document database

Active developmentPermissive licenseFast to deployGo

Why teams choose it

  • MongoDB driver compatibility (5.0+)
  • SQL translation layer using PostgreSQL DocumentDB
  • Docker image with pre‑bundled PostgreSQL for quick start

Watch for

Not 100% feature‑parity with MongoDB

Migration highlight

Rapid prototyping of a Node.js app

Developers can connect with the standard MongoDB driver, store data in PostgreSQL, and iterate without licensing concerns.

OrientDB logo

OrientDB

Versatile multi-model NoSQL DBMS with native graph, document, and full-text support

Active developmentPermissive licenseIntegration-friendlyJava

Why teams choose it

  • Native multi-model support (graph, document, key-value, full-text, geospatial)
  • SQL query language with ACID transaction guarantees
  • Multi-master distributed architecture for high availability

Watch for

Requires Java runtime

Migration highlight

Social network feed generation

Fast graph traversals combined with document profiles enable real‑time feed assembly.

PoloDB logo

PoloDB

Rust‑powered embedded NoSQL database with MongoDB‑style API

Active developmentPermissive licenseIntegration-friendlyRust

Why teams choose it

  • MongoDB‑like API for familiar query syntax
  • Embeddable library and optional standalone server
  • Multi‑threading and multi‑session support

Watch for

Smaller ecosystem and tooling compared to SQLite

Migration highlight

Desktop note‑taking app

Store user notes as JSON documents locally with fast retrieval

RavenDB logo

RavenDB

High‑performance ACID‑compliant document database with developer‑first experience

Active developmentFast to deployAI-powered workflowsC#

Why teams choose it

  • ACID transactions and security by default
  • Rich web-based Management Studio with live query and indexing
  • Multi‑platform support including Docker, .deb, and Raspberry Pi

Watch for

AGPLv3 license may restrict commercial redistribution without compliance

Migration highlight

E‑commerce platform order management

Ensures transactional consistency for orders, inventory, and payments while providing full‑text product search and real‑time analytics.

RethinkDB logo

RethinkDB

Scalable NoSQL database delivering real-time query updates

Active developmentIntegration-friendlyAI-powered workflowsC++

Why teams choose it

  • Live changefeeds push query results to clients
  • Distributed architecture with easy horizontal scaling
  • Automatic failover for high availability

Watch for

Requires manual installation of system dependencies

Migration highlight

Live blog with instant updates

Readers see new posts the moment they are published without page refresh.

SurrealDB logo

SurrealDB

Unified database and API platform for real‑time modern apps

Active developmentFast to deployIntegration-friendlyRust

Why teams choose it

  • Built‑in real‑time API layer with WebSocket support
  • Multi‑model storage: tables, documents, and graph in one engine
  • ACID‑compliant transactions across single‑node and distributed clusters

Watch for

Learning curve for multi‑model schema and permission system

Migration highlight

Live collaborative editing tool

Provides instant data sync across users via WebSocket, eliminating a separate real‑time server.

ArangoDB logo

ArangoDB

Scalable multi-model database for graphs, documents, and key-values

Active developmentIntegration-friendlyAI-powered workflowsC++

Why teams choose it

  • Native multi-model support (graph, document, key-value)
  • Integrated ArangoSearch full-text and ranking engine
  • Horizontal scalability with sharding and automatic failover

Watch for

Steeper learning curve for AQL compared to traditional SQL

Migration highlight

Social network feed generation

Fast traversal of user relationships and content ranking using AQL and ArangoSearch to deliver personalized feeds.

Choosing a document databases alternative

Teams replacing MongoDB in document databases workflows typically weigh self-hosting needs, integration coverage, and licensing obligations.

  • 8 options are actively maintained with recent commits.

Tip: shortlist one hosted and one self-hosted option so stakeholders can compare trade-offs before migrating away from MongoDB.