CrateDB vs MongoDB Atlas
Considering a switch from MongoDB Atlas to a European alternative? CrateDB offers full GDPR compliance and EU-only data hosting without the legal uncertainties that come with US-based services. Here's how they compare on features, pricing, and data protection.
Quick Overview
CrateDB
EU- Headquarters
- Dornbirn, AT
- Pricing
- Free
- Open Source
- Yes
MongoDB Atlas
USMongoDB Atlas is a fully managed cloud database service for MongoDB that provides automated provisioning, scaling, and management across major cloud providers.
The Case for CrateDB
- CrateDB stores all data exclusively in Austria, Germany, EU, under European jurisdiction. Unlike MongoDB Atlas, which is subject to the US CLOUD Act and FISA Section 702, CrateDB cannot be compelled by foreign governments to hand over your data.
- CrateDB offers a Data Processing Agreement (DPA) that is fully aligned with GDPR Article 28. There is no legal ambiguity about data transfers or adequacy decisions — your data processor is European, and the law that governs it is European.
- As an open-source solution, CrateDB gives you full code transparency. You can verify that the software does what it claims, audit it for security vulnerabilities, and even self-host it for maximum control — something that is simply not possible with MongoDB Atlas.
- You can try CrateDB for free before committing. This makes it easy to evaluate whether it meets your needs alongside — or as a replacement for — MongoDB Atlas, without any financial risk.
Why Switch to CrateDB?
Concerns with MongoDB Atlas
- US CLOUD Act jurisdiction
- Database content on US infrastructure regardless of region selection
- Broad data processing rights in service agreement
- Backup and replication data may traverse US-controlled systems
CrateDB Compliance
GDPRDPA
- Headquarters
- Dornbirn, AT
- Data Centers
- AT, DE, EU
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Categories
CrateDB vs MongoDB Atlas — FAQ
Is MongoDB Atlas GDPR compliant?
MongoDB Atlas may offer GDPR compliance features and EU data residency options, but as a US-headquartered company, it remains subject to the US CLOUD Act and FISA Section 702. These laws can compel US companies to hand over data regardless of where it is stored. The EU-US Data Privacy Framework provides some safeguards, but its predecessors (Safe Harbor and Privacy Shield) were both invalidated by the European Court of Justice. CrateDB, as a European company, is not subject to these US laws at all.
How does CrateDB compare to MongoDB Atlas in features?
CrateDB offers Distributed SQL, Time-series data, Full-text search, Geospatial queries, and 4 more features. While MongoDB Atlas's ecosystem may be larger due to its market position, CrateDB covers the core functionality that most teams need. The trade-off is typically between breadth of integrations (MongoDB Atlas) and data sovereignty with regulatory certainty (CrateDB).
Can I migrate from MongoDB Atlas to CrateDB?
Yes. Most European software providers, including CrateDB, offer migration tools or documentation to help you transition from US-based services. Under GDPR Article 20, you have the right to data portability — meaning MongoDB Atlas must provide your data in a machine-readable format. The migration process varies in complexity depending on your data volume and integrations, but for most teams it can be completed within a few days to a few weeks.