Database & Data Management · head to head
Couchbase vs SurrealDB

Couchbase
Database & Data Management
The modern database for enterprise applications
- From
- Free
- Rated
- -

SurrealDB
Database & Data Management
Multi-model database combining documents, graphs, vectors and time-series
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Couchbase the free tier is a single node with 8 GB of storage and forum support only; SurrealDB the listed $0.192/node/hr Scale pricing lacks transparent higher-tier rates, requiring a sales conversation for full production sizing.
- They diverge on capability: Couchbase covers JSON Document Model, SurrealDB covers Multi-model engine.
Where they differ
Only the attributes on which Couchbase and SurrealDB actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Database & Data Management).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Couchbase
- JSON Document Model
- SQL++ Query
- Full-text Search
- Eventing
- Analytics
- Mobile Sync
- Multi-dimensional Scaling
- Kafka
Only in SurrealDB
- Multi-model engine
- ACID transactions
- Hybrid retrieval
- Horizontal scaling
- Multi-region disaster recovery
- FIPS-compliant cryptography
What people use each for
The jobs each tool is most often brought in to do.
Couchbase
- Running a distributed NoSQL document database as a managed servicenot SurrealDB
- Mobile sync and offline first applications backed by a cloud databasenot SurrealDB
SurrealDB
- AI agent memory and retrieval-augmented generationnot Couchbase
- Applications needing documents, graphs and vectors in one databasenot Couchbase
- Knowledge graph construction from unstructured datanot Couchbase
- Regulated workloads requiring SOC2/ISO27001/HIPAA-eligible hostingnot Couchbase
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Couchbase
- The free tier is a single node with 8 GB of storage and forum support only
- Node rates are hourly and quoted as starting figures, from $0.15 an hour on Basic to $0.49 on Enterprise
- The Developer Pro and Enterprise plans require 3 nodes, so the hourly rate multiplies before any usage
- Backup storage is billed separately at $0.07 per GB a month, and analytics backups at $0.14
- Support response time is a plan feature, at 8 hours on Developer Pro against 30 minutes on Enterprise
- AI and analytics run as separately priced planes at up to $0.86 an hour per node
SurrealDB
- The listed $0.192/node/hr Scale pricing lacks transparent higher-tier rates, requiring a sales conversation for full production sizing.
- As a newer multi-model database, it has a smaller ecosystem of drivers, ORMs and community tooling than established single-model databases.
- HIPAA compliance is only available as an Enterprise add-on rather than included in standard paid tiers.
- Combining multiple data models in one engine can add query-planning complexity compared to purpose-built single-model databases.
Pricing, plan by plan
Couchbase
Free- CommunityFree
- Full features
- Community support
- Self-managed
- Capella FreeFree
- Managed service
- Limited resources
- Cloud hosted
SurrealDB
Free- StartFree
- 1 free instance, then from $0.021/hr
- 1GB storage free forever
- Vertical scaling to terabytes
- Scale$0.192/month
- $0.192/node/hr
- Production-grade fault tolerance
- Horizontal scaling to petabytes
- Enterprise$undefined/month
- Self-hosted, custom pricing
- Clustered fault-tolerant deployments
- FIPS-compliant cryptography
Which should you pick?
Choose Couchbase if
- You need json document model.
- You want to start without paying.
- You work on Linux, Windows, Mac, Docker, Web.
- You also want sql++ query.
Choose SurrealDB if
- You need multi-model engine.
- You want to start without paying.
- You work on web, api, windows, mac, linux.
- You also want acid transactions.
Questions people ask
- Is Couchbase or SurrealDB better?
- Neither clearly leads. Couchbase starts at Free and SurrealDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Couchbase or SurrealDB?
- Couchbase starts at Free and SurrealDB at Free.
- Does Couchbase or SurrealDB run on more platforms?
- Couchbase runs on Linux, Windows, Mac, Docker, Web. SurrealDB runs on web, api, windows, mac, linux.
- Can I use Couchbase for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Couchbase best used for?
- Couchbase is most often used for running a distributed nosql document database as a managed service, mobile sync and offline first applications backed by a cloud database. Of those, running a distributed nosql document database as a managed service and mobile sync and offline first applications backed by a cloud database are not what SurrealDB is typically brought in for.
- What can Couchbase do that SurrealDB cannot?
- Couchbase covers JSON Document Model, SQL++ Query, Full-text Search, Eventing. SurrealDB covers Multi-model engine, ACID transactions, Hybrid retrieval, Horizontal scaling.
Answered from the vendors’ own pages
SurrealDB: What does SurrealDB cost?
SurrealDB Cloud's Start plan is free with one free instance (then from $0.021/hr), the Scale plan runs $0.192/node/hr for production workloads, and Enterprise self-hosted deployments use custom pricing.
SourceSurrealDB: Is there a free plan and what are its limits?
Yes, the Start plan includes one free instance with 1GB of storage free forever and 1GB of outbound data transfer per month, aimed at prototypes and development.
SourceSurrealDB: How is billing handled?
Customers are invoiced monthly based on actual usage in a pay-as-you-go model with no long-term commitments, though commitment-based discounts are available.
SourceRelated pages
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- SurrealDB vs MariaDB
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