MongoDB
Popular document database for flexible, JSON-like data models.
- Status
- Generally available
- Last checked
- Checked · Oct 12, 2026
- License
- Open source
- Pricing
- Free tier · from $9/mo (Atlas Flex)
What it is
MongoDB is a document-oriented NoSQL database with flexible schemas, horizontal scaling, and Atlas managed cloud including vector search.
The leading document database with a flexible schema and managed Atlas cloud.
When it fits — and when it doesn’t
A good fit for
Apps with flexible/evolving schemas
Document model avoids rigid migrations
Rapid prototyping with JSON data
Natural fit for JS/TS object shapes
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Weaker for complex relational queries
Joins and multi-document transactions are less natural than SQL
- 02
Atlas costs can grow
Usage-based pricing scales with data/throughput
What it does well
Flexible document model
Schema-less JSON documents map naturally to app objects
Easy horizontal scaling
Sharding and replica sets built in
Atlas managed + vector search
Fully managed cloud with integrated vector search
Pricing
- Free tier
- YesAtlas free tier (512MB shared cluster)
- Paid from
- $9/mo (Atlas Flex)
- Model
- Usage-based
- Enterprise plan
- Yes
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up MongoDB
Setup steps, common gotchas and what to check after 30 days.
Get the badge
A small badge for MongoDB’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.
Markdown
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