MongoDB Atlas
Fully managed MongoDB cloud database with a free-forever tier
Founded
2016
Starting Price
$00
Category
Backend as a Service
Last updated March 24, 2026
About MongoDB Atlas
MongoDB Atlas is the fully managed cloud database service from MongoDB, available on AWS, Azure, and Google Cloud. It handles provisioning, patching, scaling, backups, and security for MongoDB deployments so teams can focus on building applications. Atlas includes built-in Atlas Search for full-text search, Atlas Vector Search for AI and semantic retrieval, Atlas Charts for data visualization, and Atlas Triggers for event-driven workflows. The free-forever M0 cluster offers 512 MB storage and 500 connections with no credit card required, while dedicated clusters (M10+) provide production-grade performance with auto-scaling, sharding, and enterprise security.
Pros & Cons
Pros
- Free-forever M0 tier with 512 MB storage and no credit card required makes it ideal for learning, prototyping, and small apps
- Atlas Search, Vector Search, and Charts are included at no extra cost — eliminating the need for separate Elasticsearch or BI tools
- Multi-cloud support across AWS, Azure, and GCP with the ability to migrate between providers without application changes
- Automated backups, patching, and scaling reduce operational burden compared to self-managed MongoDB
- Native vector search with Voyage AI integration positions Atlas well for AI/RAG applications without external vector databases
Key Features
Managed MongoDB Clusters
Fully managed MongoDB deployments on AWS, Azure, or GCP with automated provisioning, patching, point-in-time backups, and zero-downtime upgrades
Atlas Search
Embedded full-text search engine built on Apache Lucene that runs alongside your database — no separate search infrastructure like Elasticsearch required
Atlas Vector Search
Native vector search for AI applications supporting approximate and exact nearest-neighbor queries, integrated with Voyage AI embedding models for RAG and semantic search
Atlas Charts
Built-in data visualization tool for creating interactive dashboards and embeddable charts directly from your Atlas data without ETL pipelines
Auto-Scaling & Sharding
Automatic storage and compute scaling on dedicated clusters, with horizontal sharding for distributing data across multiple nodes at scale
Global Multi-Region Clusters
Deploy data across multiple regions and cloud providers with configurable read/write zones for low-latency global access
Pricing
Free (M0)
$00
- 512 MB storage
- 100 ops/sec
- 500 connections
- Shared RAM & vCPU
- Atlas Search & Vector Search
Best For
AI & RAG Applications
Store documents and their vector embeddings in the same database, using Atlas Vector Search for semantic retrieval in retrieval-augmented generation pipelines
Content Management Systems
MongoDB's flexible document model handles varied content schemas naturally — ideal for CMS platforms, blogs, and media catalogs without rigid table structures
Real-Time Analytics Dashboards
Combine Atlas Charts with change streams to build live dashboards that update as data flows in, without a separate BI warehouse
Mobile & IoT Backends
Atlas Device Sync keeps data consistent between mobile apps and the cloud, while auto-scaling handles unpredictable IoT ingest volumes
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