MongoDB Atlas vs CockroachDB

Side-by-side — pricing, strengths, tradeoffs, and fit.

MongoDB Atlas

The developer data platform built on MongoDB

CockroachDB

The most resilient distributed SQL database

At a glance

Open SourceFree Tier
● Established·From Freemium
Open SourceFree Tier
● Established·From Freemium

Overview

One-liner

The developer data platform built on MongoDB

One-liner

The most resilient distributed SQL database

Maturity

Established

Maturity

Established

Open source

✓ Yes

Open source

✓ Yes

Pricing

Free tier

✓ Available

Free tier

✓ Available

Starts at

Freemium

Starts at

Freemium

Model

Hybrid

Model

Hybrid

Enterprise

✕ None

Enterprise

✕ None

Best for

✓ Best for

Teams building flexible schema applications like content platforms, catalogs, or user-generated content apps
Enterprise developers who need a managed NoSQL solution with compliance, SLAs, and global replication
Agencies managing multiple client projects who need a flexible document model that adapts to changing requirements

✓ Best for

Applications requiring global distribution, high availability, and strong consistency with PostgreSQL compatibility

Not ideal for

✕ Not for

Applications with heavily relational data requiring complex joins across many tables
Solo developers on a budget where relational Postgres alternatives offer more for free

✕ Not for

Simple single-region apps or workloads where a standard Postgres instance is sufficient

Strengths

↑ Strengths

Document model
Auto-scaling
Global clusters
Full-text search

↑ Strengths

Distributed SQL
PostgreSQL wire protocol
Auto-sharding
Multi-region

Weaknesses

↓ Weaknesses

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↓ Weaknesses

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Full MongoDB Atlas profile →Full CockroachDB profile →