Side by side

DynamoDB Local vs mountebank

Both stand on service virtualization software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

DynamoDB Local

Free plan APILinuxMac+2

DynamoDB Local offers a free way to develop and test applications without using the managed web service. Check its version, runtime, telemetry controls, and feature differences before relying on it for a particular local workflow.

Visit DynamoDB Local

mountebank

Free plan APILinuxSelf-hosted

mountebank offers protocol-based test doubles with a broad set of community extensions. Review the memory and injection warnings when planning deployment and configuration.

Visit mountebank

The facts

	DynamoDB Local	mountebank
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	API, Linux, Mac, Self-hosted, Windows	API, Linux, Self-hosted
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Not published	Not published
Website	docs.aws.amazon.com	mbtest.dev
On service virtualization software	#5 of 21	#9 of 21

DynamoDB Local: what it does well

Runs locally without an internet connection.
Available as an archive, Maven dependency, or Docker image.
Data can persist in a local database file.
Telemetry can be disabled.

What to know first

Not intended for production use.
Does not support point-in-time recovery, tagging, or vector indexes.
Does not support parallel scans.
v2.6.0 and later require JRE 17.x or newer.

mountebank: what it does well

Free, open-source service virtualization
Built-in HTTP, HTTPS, TCP and SMTP protocols
Supports proxy recording and replay
Client libraries span multiple programming languages
Includes Grunt, Gradle and Maven plugins

What to know first

Stores everything in memory by default
Memory use can bottleneck at scale
JavaScript injection can enable code execution
CORS is disabled by default

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