MongoDB Atlas M0 free tier
A free 512 MB MongoDB cluster in the cloud, no expiry — for learning and small projects.
Active Free tier confirmed on the official pricing page.
Last verified: 2026-11-09. Free tiers change without notice — always confirm on the official pricing page before you rely on a limit.
Source: MongoDB Atlas Pricing page and free-tier limitations docs
Source: MongoDB Atlas Pricing page and free-tier limitations docs
Free allowance
| What | Free allowance |
|---|---|
| Storage | 512 MB |
| Price | $0 — listed as free forever |
| Throughput | 100 operations per second |
| Connections | 500 |
| Free clusters | 1 per project |
| Data transfer | 10 GB in + 10 GB out per rolling 7 days |
Credit card required?
Not stated on the official pricing page. Do not assume either way.
Limits & watch-outs
- Cluster auto-pauses after 30 days with zero connections.
- Max 100 databases / 500 collections; no sharding, VPC peering, or private endpoints.
- Only some regions are available for M0; storage cannot auto-scale.
- M2/M5 shared clusters were discontinued from 2026-01-22 and migrated to Flex — M0 is unaffected.
Best for
Learning MongoDB or running a tiny app that fits in 512 MB.
What to watch
Backup pricing for free clusters is not stated on the pricing page; do not assume backups are free.
Related free tiers
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This page is a summary of the provider's official pricing page as of the verification date above. Providers change free tiers without notice. Always confirm the current terms on the official page before you rely on a limit.