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Head-to-head · Schema Registry Software

AWS Glue Schema Registry vs Karapace

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score AWS Glue Schema Registry #2 in Schema Registry Software 9.3/10 Free plan Free plan✓ 0 of 2 features Visit AWS Glue
Karapace #5 in Schema Registry Software 8.8/10 Open source ✓ 0 of 2 features Visit Karapace

AWS Glue Schema Registry leads on 0 checks, Karapace on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAWS Glue Schema Registry · 9.3/10
  • Free planonly AWS Glue Schema Registry

AWS Glue Schema Registry scores higher on our rubric for schema registry software: 9.3 against 8.8 out of 10; our editors rank them #2 and #5.

On deployment options, Karapace gives you Hybrid where AWS Glue Schema Registry offers Cloud.

AWS Glue Schema Registry is the better fit for AWS-native streaming teams. Karapace is the better fit for kafka teams needing high availability.

  • AWS Glue Schema Registry fits best

    AWS-native streaming teams

  • Karapace fits best

    Kafka teams needing high availability

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Side by side

Feature AWS Glue Schema Registry 9.3/10 Visit ↗ Karapace 8.8/10 Visit ↗
At a glance
Editor score 9.3 8.8
Ranking #2 in Schema Registry Software #5 in Schema Registry Software
Best for AWS-native streaming teams Kafka teams needing high availability
Pricing model Free Free
Starting price Free Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud Cloud, Self-hosted
Support Docs Docs, Community
Integrations 7 integrations 1 integrations
Built for Enterprise Small business, Mid-market, Enterprise
Features AWS Glue Schema Registry 0/2 · Karapace 0/2
Approval workflows Not checked yet Not checked yet
Git synchronization Not checked yet Not checked yet
Specs
Schema formats Avro, JSON Schema, Protocol Buffers (Protobuf) Avro, Protobuf, JSON Schema
Compatibility modes NONE, DISABLED, BACKWARD, BACKWARD_ALL, FORWARD, FORWARD_ALL, FULL, FULL_ALL NONE, BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE
Validation scope Event Event
Deployment options Cloud Hybrid
Our review
Pros
  • No additional charge for registry usage
  • Supports Avro, JSON Schema, and Protocol Buffers
  • IAM, TLS, and KMS encryption support
  • Supports Avro, Protobuf, and JSON Schema with references
  • Offers compatibility management, OAuth/OIDC, and RBAC
  • Provides leader/replica high availability and OpenTelemetry metrics
Cons
  • Cloud deployment limits portability
  • Strongest fit is within the AWS ecosystem
  • Advanced schema governance depends on AWS services
  • Its listed integration is centered on Apache Kafka
  • Managed hosting is provided through Aiven for Apache Kafka
  • Deployment options focus on API and self-hosted environments
Our verdict

AWS Glue Schema Registry is a serverless, managed registry for teams that need to register, version, validate, and govern schemas in streaming applications. It supports Avro, JSON Schema, and Protocol Buffers, with compatibility rules for…

Read the review →

Karapace is an Aiven-built open-source Schema Registry and REST Proxy for Apache Kafka. It is designed for teams that need centralized schema storage, versioning, validation, and compatibility management alongside Kafka messaging. The…

Read the review →
  1. AWS Glue Schema RegistrySchema Registry Software 9.3Free plan
  2. KarapaceSchema Registry Software 8.8Open source

Strengths and trade-offs

  • AWS Glue Schema Registry — where it wins

    • No additional charge for registry usage
    • Supports Avro, JSON Schema, and Protocol Buffers
    • IAM, TLS, and KMS encryption support

    Where it doesn't

    • Cloud deployment limits portability
    • Strongest fit is within the AWS ecosystem
    • Advanced schema governance depends on AWS services

  • Karapace — where it wins

    • Supports Avro, Protobuf, and JSON Schema with references
    • Offers compatibility management, OAuth/OIDC, and RBAC
    • Provides leader/replica high availability and OpenTelemetry metrics

    Where it doesn't

    • Its listed integration is centered on Apache Kafka
    • Managed hosting is provided through Aiven for Apache Kafka
    • Deployment options focus on API and self-hosted environments

More comparisons

All schema registry software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update