Apache Flink CDC vs Decodable

AFApache Flink CDC8.2Visit Decodable6.9Visit

Higher score AF Apache Flink CDC #3 in Change Data Capture Software 8.2/10 Open source ✓ 2 of 2 features Explore Flink CDC

vs

Decodable #6 in Change Data Capture Software 6.9/10 Free plan · paid from $0.12 Free plan✓ 1 of 2 features Visit Decodable

• Apache Flink CDC fits best

  Flink-based streaming CDC pipelines

• Decodable fits best

  Usage-priced managed CDC

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Side by side

Feature	AFApache Flink CDC 8.2/10 Visit ↗	Decodable 6.9/10 Visit ↗
At a glance
Editor score	8.2	6.9
Ranking	#3 in Change Data Capture Software	#6 in Change Data Capture Software
Best for	Flink-based streaming CDC pipelines	Usage-priced managed CDC
Pricing model	Free	Free plan + paid
Starting price	Not published	Not published
Free plan	Not published	✓ (best)
Free trial	—	—
Deployment	Self-hosted	Cloud, Self-hosted
Support	Community, Docs	Community, Live chat, Email · 24/7
Integrations	18 integrations	20 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Apache Flink CDC 2/2 · Decodable 1/2
Schema evolution	✓ (best)	—
Initial snapshot	✓	✓
Specs
Deployment model	Self-hosted	Hybrid
Capture method	Log-based	Log-based
Source connectors	Not published	Not published
Destination connectors	Not published	Not published
Our review
Pros	Supports snapshots, incremental reads, and ongoing change-log capture Provides exactly-once processing, transformations, routing, and schema evolution Connects with databases, Kafka, Iceberg, Hudi, Elasticsearch, and more	Log-based CDC with Debezium-powered source and sink connectors SQL, Java, and Python processing for real-time streams Serverless hosted or BYOC data-plane deployment options
Cons	Deployment is self-hosted rather than managed Requires an Apache Flink-based streaming environment Its API choices may add design decisions for smaller CDC projects	Upstream schema changes require manual updates and connection restarts Enterprise pricing requires annual billing Exactly-once processing applies only to supported connectors
Our verdict	Apache Flink CDC is an open-source change data capture and streaming data integration tool built on Apache Flink. It is aimed at data engineers and organizations creating real-time pipelines, database replication workflows, and streaming… Read the review →	Decodable is a serverless real-time data engineering platform for data engineers, application developers, and data scientists. Its change data capture capabilities read database transaction logs and deliver inserts, updates, and deletes to… Read the review →

Strengths and trade-offs

• Apache Flink CDC — where it wins

  • Supports snapshots, incremental reads, and ongoing change-log capture
  • Provides exactly-once processing, transformations, routing, and schema evolution
  • Connects with databases, Kafka, Iceberg, Hudi, Elasticsearch, and more

  Where it doesn't

  • Deployment is self-hosted rather than managed
  • Requires an Apache Flink-based streaming environment
  • Its API choices may add design decisions for smaller CDC projects

• Decodable — where it wins

  • Log-based CDC with Debezium-powered source and sink connectors
  • SQL, Java, and Python processing for real-time streams
  • Serverless hosted or BYOC data-plane deployment options

  Where it doesn't

  • Upstream schema changes require manual updates and connection restarts
  • Enterprise pricing requires annual billing
  • Exactly-once processing applies only to supported connectors

• AFApache Flink CDC8.2/10 · Open source

  A flexible CDC foundation for teams building Flink-based streaming pipelines.

  Explore Flink CDCFull verdict →
• Decodable6.9/10 · Free plan · paid from $0.12

  A usage-priced managed CDC platform with Flink, Debezium connectors, and serverless deployment.

  Visit DecodableFull verdict →