Guide
Best Document Databases
Document databases store data as flexible JSON-like documents instead of rigid tables, making them a natural fit for evolving schemas, content, and application data that does not map neatly to rows and columns. The category includes the leading general-purpose document store with a managed cloud, sync-focused databases built for offline-first apps, and fully transactional options. The right choice depends on your consistency needs, scaling model, and whether features like built-in search, replication, or offline sync matter. Consider the query and indexing model, transactions, and managed-versus-self-hosted trade-offs. Below are widely used document databases, compared on features, pricing, and the applications they suit best.
4 tools reviewed
Why this matters
Schema-flexible storage speeds up development when your data model is still changing. The trade-offs are consistency and query power, so matching the database’s guarantees to your app avoids surprises in production.
Featured tools
One database for graph, document and key-value data.
The developer data platform built on documents.
Seamless multi-master sync document database.
Fully transactional NoSQL document database.
Comparison table
| Tool | Free plan | Pricing model | Starting price | Best for |
|---|---|---|---|---|
| ✓ Yes | open source | Free plan | Startup, SMB, Enterprise | |
| ✓ Yes | freemium | Free plan | Startup, SMB, Enterprise | |
| ✓ Yes | open source | Free plan | Startup, SMB, Enterprise | |
| ✓ Yes | freemium | Free plan | Startup, SMB, Enterprise |
Popular comparisons
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Frequently asked questions
Document database vs relational database?+
Document stores offer flexible, JSON-like schemas ideal for evolving data; relational databases offer strong consistency and powerful joins. Choose by data shape and consistency needs.
Are document databases ACID-compliant?+
Several now offer full ACID transactions, closing a historic gap with relational systems — check the specific engine’s guarantees.
What about offline-first apps?+
Some document databases specialise in multi-master replication and sync, which is ideal for offline-first and distributed clients.
Managed or self-hosted?+
Managed cloud offerings provide free tiers and remove ops; open-source engines can be self-hosted for control and cost.