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Open Source MongoDB Alternatives

A curated collection of the 11 best open source alternatives to MongoDB.

The best open source alternative to MongoDB is TiDB. If that does not suit you, we have compiled a ranked list of other open source MongoDB alternatives to help you find a suitable replacement.

MongoDB alternatives are mainly Relational Databases (SQL). Browse these if you want a narrower list of alternatives or are looking for a specific functionality of MongoDB.

Written by OpenAlternative Last updated: June 2, 2026
#1

TiDB

Distributed SQL database combining OLTP and OLAP capabilities, offering horizontal scalability, high availability, and real-time analytics.

Distributed SQL database combining OLTP and OLAP capabilities, offering ho...

#2

InfluxDB

High-performance database optimized for collecting, storing, and analyzing time-stamped data in real-time across cloud, on-premises, or edge environme

High-performance database optimized for collecting, storing, and analyzing...

#3

TDengine

Purpose-built database for Industry 4.0 and IoT that enables real-time ingestion, storage, and analysis of massive sensor data with high compression

Purpose-built database for Industry 4.0 and IoT that enables real-time ing...

#4

Timescale

Extend PostgreSQL for time-series data with automatic partitioning, scalable ingestion, and advanced analytics for mission-critical applications.

Extend PostgreSQL for time-series data with automatic partitioning, scalab...

#5

QuestDB

Open-source time-series database offering massive ingestion throughput, millisecond queries, and SQL extensions, designed for optimal performance at a

Open-source time-series database offering massive ingestion throughput, mi...

#6

Convex

Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integr

Open-source reactive database that keeps your web and mobile apps in sync....

#7

Instant

Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.

Instant is a database solution for building real-time and offline-enabled ...

#8

OceanBase

Scalable, high-availability database system supporting OLTP, OLAP, and hybrid transactional/analytical processing workloads.

Scalable, high-availability database system supporting OLTP, OLAP, and hyb...

#9

FerretDB

A database proxy that enables MongoDB compatibility with PostgreSQL backend, allowing seamless use of MongoDB tools and drivers while avoiding vendor

A database proxy that enables MongoDB compatibility with PostgreSQL backen...

#10

Activeloop

Deep Lake is an open-source database for storing, querying and managing complex AI data like images, audio, and embeddings.

Deep Lake is an open-source database for storing, querying and managing co...

#11

Memgraph

Memgraph is a scalable, in-memory graph database solution offering high-performance computing and Neo4j compatibility.

Memgraph is a scalable, in-memory graph database solution offering high-pe...