Side by side

AWS Glue Schema Registry vs Google Cloud Pub/Sub

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

AWS Glue Schema Registry

Free plan APIWeb

AWS Glue Schema Registry provides shared schema handling and multiple evolution modes for streaming workflows. Confirm that its supported formats, documented integrations, and regional quotas match your setup.

Visit AWS Glue Schema Registry

Google Cloud Pub/Sub

Free plan APIWeb

Pub/Sub provides message delivery controls and integrations for service-to-service workloads. Its authentication options, typical latency, and intended audience are important constraints to weigh.

Visit Google Cloud Pub/Sub

The facts

	AWS Glue Schema Registry	Google Cloud Pub/Sub
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	API, Web	API, Web
Lowest paid plan	Free or on request	See the plans
Plans published	1	4
Maker	Not published	Not published
Website	docs.aws.amazon.com	cloud.google.com
On schema registry software	#7 of 26	#11 of 26

AWS Glue Schema Registry: what it does well

Free to use within stated quotas.
Supports Avro, JSON Schema, and Protobuf.
Offers eight compatibility modes.
Supports schema auto-registration and metadata sourcing.
Encrypts API traffic and stored schemas.

What to know first

Protobuf extensions and groups are unsupported.
Documented Kinesis library integration supports Java only.
Not supported in the AWS Glue console in Middle East (UAE).
Regional quotas limit registries and schema versions.

Google Cloud Pub/Sub: what it does well

First 10 GB per month is free.
Supports REST and gRPC.
Includes seek, replay, and dead letter topics.
Automatic provisioning after quota is set.
Maximum message size is 10 MB.

What to know first

API keys are not supported for authentication.
Intended for services, not direct end-user or IoT clients.
Typical communication latency is around 100 milliseconds.

Alternatives to AWS Glue Schema Registry Alternatives to Google Cloud Pub/Sub The whole list