MongoDB Atlas free tier includes Free 512 MB shared cluster (M0), always free, available on AWS/Azure/GCP… Verified November 2026. Compare with 5 alternatives in Databases.
Subtypes in Databases: document — schemaless JSON/BSON documents as the stored unit. We read that on 2026-08-31 from https://www.mongodb.com/products/platform/atlas-database, where it says: “Find out how the document model eliminates operational complexity while ensuring unmatched resilience, scalability, and enterprise-grade security through the Atlas cloud database.” How we use this.
MongoDB Atlas's free tier offers Free 512 MB shared cluster (M0), always free, available on AWS/Azure/GCP… It's stable — zero pricing changes recorded. Best for databases workloads — 5 alternatives available.
Free 512 MB shared cluster (M0), always free, available on AWS/Azure/GCP. Includes Atlas Vector Search for AI/RAG applications
We read that on 2026-11-06 from https://www.mongodb.com/pricing, and our check recorded: the page names MongoDB Atlas as "mongodb atlas" and states "$0".
Free $0/hour Explore Atlas Free forever For learning and exploring MongoDB in a cloud environment. 512MB of storage Shared RAM Shared vCPU
No recorded pricing changes for MongoDB Atlas. This is a good sign — stable pricing.
How MongoDB Atlas compares against every one of the 5 we list, not against a selection of them. A surface with room for every member of a tied set may rotate their order. A surface with room for only some of them names none of them, because which ones it named would be the claim, and a claim seeded on the date is not the one we serve tomorrow. How we decide this.
| Service | Free Tier | Stability |
|---|---|---|
| MongoDB Atlas | M0 Free | stable |
| restdb.io | Free a fast and straightforward NoSQL cloud database service. With restdb.io you get schema, relations, automatic REST API (with MongoDB-like queries), and an efficient multi-user admin UI for working with data. |
stable |
| Firebase | Spark Spark plan, no payment method needed: Auth (50K MAU), Firestore Standard edition (1 GiB stored, 50K reads/day, 20K writes/day, 20K deletes/day), Realtime Database (100 simultaneous connections, 1 GB stored, 10 GB/month downloaded), Hosting (10 GB storage, 360 MB/day transfer), and no-cost… |
caution |
| SurrealDB Cloud | Free Multi-model cloud database — The 'Start' plan offers 1GB of storage free, forever, and a free compute instance with 0.25 vCPU and 1 GB memory ($0.000/hr). Further instances are available from $0.021/hr. |
stable |
| filess.io | Free filess.io is a platform where you can create two databases with up to 10 MB per database of the following DBMS for free: MySQL, MariaDB, MongoDB, and PostgreSQL. |
stable |
| Couchbase Capella | Free deploy a forever free tier fully managed database cluster with 1 node and 8GB storage, built for developers to create the next generation of applications across IoT to AI |
source unconfirmed |
Left out of this list: Supabase (shares no subtype with this product), Neon (shares no subtype with this product), CockroachDB (shares no subtype with this product), Turso (shares no subtype with this product), Upstash (shares no subtype with this product), Databricks (Lakeflow Connect) (none of this category's subtypes apply), Convex (shares no subtype with this product), Appwrite Cloud (shares no subtype with this product), Aiven (shares no subtype with this product), Xata (shares no subtype with this product), Cloudflare D1 (shares no subtype with this product), Nhost (shares no subtype with this product), PocketBase (shares no subtype with this product), Cloudflare KV (shares no subtype with this product), Momento (shares no subtype with this product), Nile (shares no subtype with this product), DynamoDB Local (runs only on a developer machine), Redis Cloud (shares no subtype with this product), Prisma Accelerate (extends another product), Weaviate (shares no subtype with this product), Zilliz Cloud (shares no subtype with this product), LanceDB (shares no subtype with this product), Upstash Vector (shares no subtype with this product), Chroma (shares no subtype with this product), Turbopuffer (shares no subtype with this product), Gel (we have not classified this record), CrateDB (shares no subtype with this product), Neo4j AuraDB (shares no subtype with this product), InfluxDB Cloud (shares no subtype with this product), Hasura (extends another product), 8base.com (shares no subtype with this product), codehooks.io (shares no subtype with this product), SeaTable (none of this category's subtypes apply), skyvia.com (none of this category's subtypes apply), StackBy (none of this category's subtypes apply), Google Cloud BigQuery (shares no subtype with this product), Amazon Aurora PostgreSQL (shares no subtype with this product), PlanetScale (we have not classified this record), Cloudflare Vectorize (shares no subtype with this product). Each is still listed in Databases, with the vendor's own words we read that from on its page. How we decide this.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
curl https://agentdeals.dev/api/changes?vendor=MongoDB%20Atlas
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=MongoDB%20Atlas