Best Schema Registry Software in 2026
Updated
In short: Confluent Cloud is ranked #1 of 23 as of 4 October 2026, ahead of TIBCO Messaging Schema Repository for Apache Kafka and Apache Pulsar. The best-ranked option with a free plan is TIBCO Messaging Schema Repository for Apache Kafka. The lowest first paid tier on this page is WarpStream BYOC Schema Registry at $0.03/mo.
When schemas move between services and teams, registry software can help manage their formats, compatibility, and validation. Compare schema formats and validation scope, then look at compatibility modes and approval workflows. Deployment options and Git synchronization show other ways the entries differ; free-plan availability and paid-from pricing add cost context. Confluent Cloud and Redpanda lead the ranking, with TIBCO Messaging Schema Repository for Apache Kafka and Yandex SpeechKit among the next entries. Apache Pulsar, Buf Schema Registry, Google Cloud Pub/Sub, and AWS Glue Schema Registry also appear early. Weigh these criteria against the schemas and approval processes you need to support.
23 schema registry software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Confluent Cloud Top pick · 7.0 Free plan · $385/mo
#2 TIBCO Messaging Schema Repository for Apache Kafka Runner-up · 7.0 Free plan · Free
#3 Apache Pulsar Also great · 6.9 Free plan · Free
- Free planFree trial apiLinuxWeb
- Free plan
- Yes
- Paid from
- 385 /mo
RecognisedDocumentedFree planPlatforms$385/mofirst paid tier About Confluent CloudVisit site - Free plan apiLinuxmacOSself-hosted
- Free plan
- Yes
- Schema formats
- Apache Avro JSON schema
- Compatibility modes
- BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE, NONE
- Validation scope
- event
- Deployment options
- self_hosted
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxmacOSself-hostedWindows
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free planFree trial apiself-hostedWeb
- Free plan
- Yes
- Paid from
- 0.5 /mo
- Schema formats
- Protobuf
- Compatibility modes
- FILE, PACKAGE, WIRE, WIRE_JSON
- Validation scope
- api
- Deployment options
- hybrid
RecognisedDocumentedFree planPlatforms$0.50/mofirst paid tier About Buf Schema RegistryVisit site - Free planFree trial apiWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms$40/mofirst paid tier About Google Cloud Pub/SubVisit site - Free plan apiWeb
- Free plan
- Yes
- Schema formats
- Avro, JSON Schema, Protocol Buffers (Protobuf)
- Compatibility modes
- NONE, DISABLED, BACKWARD, BACKWARD_ALL, FORWARD, FORWARD_ALL, FULL, FULL_ALL
- Validation scope
- event
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxself-hosted
- Free plan
- Yes
- Schema formats
- Avro, Protocol Buffers, JSON Schema
- Compatibility modes
- NONE, BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE
- Validation scope
- event
- Deployment options
- self_hosted
RecognisedDocumentedFree planPlatforms - Free plan apiLinuxself-hosted
- Schema formats
- Avro, Protobuf, JSON Schema
- Compatibility modes
- NONE, BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE
- Validation scope
- event
- Deployment options
- hybrid
RecognisedDocumentedFree planPlatforms$35/mofirst paid tier About KarapaceVisit site - apiLinuxmacOSself-hostedWindows
- Schema formats
- Protobuf, Avro, JSON Schema
- Compatibility modes
- backward, forward, full
- Validation scope
- event
- Deployment options
- self_hosted
RecognisedDocumentedFree planPlatforms - Free trial apiLinuxself-hostedWeb
- Free plan
- No
RecognisedDocumentedFree planPlatforms - Free plan Web
- Free plan
- Yes
- Schema formats
- Avro, JSON Schema, Protobuf
- Compatibility modes
- BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE, NONE
- Validation scope
- event
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms - apiWeb
- Free plan
- Yes
- Schema formats
- Avro, JSON Schema, Protobuf
- Compatibility modes
- BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE, NONE
- Validation scope
- event
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms - apiLinuxself-hostedWeb
- Schema formats
- Avro, JSON
- Compatibility modes
- Backward, Forward, Full, None
- Validation scope
- event
- Deployment options
- hybrid
RecognisedDocumentedFree planPlatforms - apiLinuxmacOSself-hosted
- Free plan
- No
- Schema formats
- Avro, Protobuf
- Validation scope
- event
- Deployment options
- hybrid
RecognisedDocumentedFree planPlatforms$0.03/mofirst paid tier About WarpStream BYOC Schema RegistryVisit site - Free trial apiWeb
- Free plan
- No
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms$0.48/mofirst paid tier About AWS Glue DataBrewVisit site - Web
- Free plan
- No
- Schema formats
- Avro, JSON Schema, Protobuf
- Compatibility modes
- Backward, Forward, None
- Validation scope
- event
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Schema formats
- Avro, Protobuf, JSON, XML
- Validation scope
- event
- Deployment options
- hybrid
RecognisedDocumentedFree planPlatforms - Free trial api
- Free plan
- No
RecognisedDocumentedFree planPlatforms - Web
- Schema formats
- JSON Schema
- Compatibility modes
- Backward-compatible change detection
- Validation scope
- api
- Deployment options
- self_hosted
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Schema formats
- OpenAPI 3; JSON Schema Draft 4
- Validation scope
- event
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Schema formats
- JSON
- Validation scope
- event
- Deployment options
- cloud
RecognisedDocumentedFree planPlatforms -
- Schema formats
- JSON, Avro, Protocol Buffers, XML, CSV
- Compatibility modes
- BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE, NONE
- Validation scope
- event
- Deployment options
- self_hosted
RecognisedDocumentedFree planPlatforms - WebRecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which schema registry software is ranked first on Everything Xiaomi?
Confluent Cloud is ranked #1 of 23 with a score of 7.0. TIBCO Messaging Schema Repository for Apache Kafka is second and Apache Pulsar third.
How many of these have a free plan?
9 of the 23 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, WarpStream BYOC Schema Registry has the lowest first paid tier we found: $0.03/mo.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.