Open-source alternatives guide · Updated 2026

Best open-source alternatives to Mongodb

Q: How should I evaluate Mongodb alternatives?

Map must-have Mongodb workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.

Compare the best free and open-source alternatives to MongoDB — 12 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

Official product reference Mongodb

12verified alternatives
5self-hosted signals
2categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 12 verified open-source alternatives to MongoDB, including TiDB, InfluxDB, TDengine, and Timescale.

Projects appear across AI & Machine Learning and Data & Analytics. 5 options include a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Strongest repository-activity signal: TiDB · Jump to ranking · 40.3K stars

About MongoDB

Document database platform with managed cloud offerings.

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Ranked open-source alternatives to MongoDB

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

TiDB

Open-source alternative to MongoDB

AI & Machine LearningApache-2.0AI-native

TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.

TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbo

Best for: AI product teams
Deployment: Inspectable source
License: Apache-2.0
Activity: Updated 26 hours ago

Key capabilities

hacktoberfest

database

InfluxDB

Open-source alternative to MongoDB

Data & AnalyticsApache-2.0Self-hosted

Scalable datastore for metrics, events, and real-time analytics

Scalable datastore for metrics, events, and real-time analytics Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Data teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 26 hours ago

Key capabilities

react

rust

database

TDengine

Open-source alternative to MongoDB

Data & AnalyticsAGPL-3.0

High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios

High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios Review the official repository, license, release activity, and deployment documentation

Best for: Data teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 3 days ago

Key capabilities

database

monitoring

sql

metrics

Timescale

Open-source alternative to MongoDB

Data & AnalyticsLicense not declared

A time-series database for high-performance real-time analytics packaged as a Postgres extension

A time-series database for high-performance real-time analytics packaged as a Postgres extension Review the official repository, license, release activity, and deployment documenta

Best for: Data teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 28 hours ago

Key capabilities

QuestDB

Open-source alternative to MongoDB

Data & AnalyticsApache-2.0Self-hosted

QuestDB is a high performance, open-source, time-series database

QuestDB is a high performance, open-source, time-series database Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Data teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 26 hours ago

Key capabilities

postgresql

database

sql

java

Turso

Open-source alternative to MongoDB

Data & AnalyticsMIT

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

libSQL is a fork of SQLite that is both Open Source, and Open Contributions. Review the official repository, license, release activity, and deployment documentation before producti

Best for: Data teams
Deployment: Inspectable source
License: MIT
Activity: Updated 4 days ago

Key capabilities

rust

database

sqlite embedded-database

Convex

Open-source alternative to MongoDB

Data & AnalyticsLicense not declared

The open-source reactive database for app developers

The open-source reactive database for app developers Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Data teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 27 hours ago

Key capabilities

FerretDB

Open-source alternative to MongoDB

Data & AnalyticsApache-2.0Self-hosted

A truly Open Source MongoDB alternative

A truly Open Source MongoDB alternative Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Data teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 1 month ago

Key capabilities

Instant

Open-source alternative to MongoDB

AI & Machine LearningApache-2.0AI-native

Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love.

Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love. Review the offici

Best for: AI product teams
Deployment: Inspectable source
License: Apache-2.0
Activity: Updated 10 days ago

Key capabilities

TypeScript

Github Actions

JavaScript

#10

OceanBase

Open-source alternative to MongoDB

AI & Machine LearningApache-2.0Self-hostedAI-native

The Fastest Distributed Database for Transactional, Analytical, and AI Workloads.

The Fastest Distributed Database for Transactional, Analytical, and AI Workloads. Review the official repository, license, release activity, and deployment documentation before pr

Best for: AI product teams
Deployment: Self-hostable
License: Apache-2.0
Activity: Updated 44 hours ago

Key capabilities

#11

Activeloop

Open-source alternative to MongoDB

AI & Machine LearningApache-2.0AI-native

Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.

Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training. Review the official repository, licens

Best for: AI product teams
Deployment: Inspectable source
License: Apache-2.0
Activity: Updated 2 months ago

Key capabilities

python

llm

agent

#12

Memgraph

Open-source alternative to MongoDB

AI & Machine LearningLicense not declaredSelf-hostedAI-native

High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++.

High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++. Review the official repos

Best for: AI product teams
Deployment: Self-hostable
License: License not declared
Activity: Updated 26 hours ago

Key capabilities

ai-agents ai-agent streaming

How to choose a MongoDB alternative

Map must-have capabilitiesList the workflows in MongoDB you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about MongoDB alternatives

What are the best open-source alternatives to MongoDB?

OpenSourceChoice currently lists 12 projects with an explicit alternative relationship to MongoDB. Catalog highlights include TiDB, InfluxDB, and TDengine. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to MongoDB free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to MongoDB?

5 options in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate MongoDB alternatives?

Map must-have MongoDB workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.

Browse and filter the catalog

Narrow the same alternatives by search, license, tags, or self-hosting signals when you need a tighter shortlist.

TiDB

Apache-2.0

Metrics syncing

Alternatives toMongoDB +3

InfluxDB

Apache-2.0

Scalable datastore for metrics, events, and real-time analytics

Metrics syncing

Alternatives toMongoDB +3

TDengine

AGPL-3.0

High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios

Metrics syncing

Alternatives toMongoDB +3

Timescale

License not declared

A time-series database for high-performance real-time analytics packaged as a Postgres extension

Metrics syncing

Alternatives toMongoDB +4

QuestDB

Apache-2.0

QuestDB is a high performance, open-source, time-series database

Metrics syncing

Alternatives toMongoDB +3

Turso

MIT

libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

Metrics syncing

Alternatives toMongoDB +3

Convex

License not declared

The open-source reactive database for app developers

Metrics syncing

Alternatives toMongoDB +4

FerretDB

Apache-2.0

A truly Open Source MongoDB alternative

Metrics syncing

Alternatives toMongoDB +2

Instant

Apache-2.0

Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love.

Metrics syncing

Alternatives toMongoDB +4

OceanBase

Apache-2.0

The Fastest Distributed Database for Transactional, Analytical, and AI Workloads.

Metrics syncing

Alternatives toMongoDB +4

Activeloop

Apache-2.0

Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.

Metrics syncing

Alternatives toMongoDB +3

Memgraph

License not declared

High-performance open-source in-memory graph database for GraphRAG, AI memory, agentic AI, and real-time graph analytics. Cypher-compatible, built in C++.

Metrics syncing

Alternatives toMongoDB +2

Showing 12 of 12

Overview

About MongoDB

Ranked open-source alternatives to MongoDB

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Frequently asked questions about MongoDB alternatives

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