Debezium Alternatives: 5 CDC Tools Compared (2026)
Debezium is the de-facto open-source CDC engine: Apache 2.0, 13 source connectors, battle-tested at scale. Most teams that search for an alternative aren’t unhappy with its capture quality — they’re unhappy with its operational bill. The standard topology needs Kafka, Kafka Connect, sink connectors, and Schema Registry, all run and monitored by you; there is no UI; snapshot and validation are separate work.
Debezium Server can skip Kafka (its JDBC sink writes straight to a relational database with upserts and schema evolution) — but it’s still a service you wire, run, and monitor yourself. The alternatives below trade that ops burden for either a license fee or a managed cloud.
Keep Debezium if
- Kafka is already core infrastructure and downstream consumers read topics.
- You need sources DBConvert Streams doesn’t cover: Oracle, SQL Server, MongoDB, Cassandra, Db2.
- An Apache 2.0 license is a hard requirement.
1. DBConvert Streams
Best for MySQL/PostgreSQL DB-to-DB replication without Kafka
Reads the same logs Debezium reads — MySQL binlog, PostgreSQL WAL — but delivers changes directly to the target database, files, or S3. The message layer (NATS) is embedded in the desktop app and Docker distribution: no Kafka cluster, no Connect, no Schema Registry, no sink connectors. Initial load, CDC handoff, source/target comparison, and monitoring run in one UI. Self-hosted, so the data path stays inside your network.
2. Estuary Flow
Best managed alternative with published pricing
Managed CDC with its own non-Debezium log-based connectors and transparent pricing: $0.50/GB moved + $100/connector/month, free tier 10 GB / 2 connectors. No infrastructure to run — and no infrastructure you control: it’s SaaS unless you sign an annual Enterprise contract for BYOC.
3. Airbyte
Best if you want Debezium’s engine with a managed UI
Airbyte’s database CDC is Debezium under the hood — wrapped in a connector platform with scheduling, a UI, and a warehouse-shaped destination catalog. Self-managed Core is free (ELv2, source-available); Cloud is volume-based from $10/month. You trade Kafka ops for Kubernetes-shaped platform ops, or pay for Cloud.
4. Striim
Best enterprise replacement with in-flight SQL transforms
A distributed streaming platform that does CDC plus SQL-based stream processing (joins, windows, enrichment) at billions-of-events scale, managed or self-hosted. Paid pricing is quote-only; the free Developer tier caps at 25M events/month.
5. AWS DMS
Best for AWS-internal estates
Managed log-based CDC billed per replication-instance hour or serverless DCU, with a very broad source matrix (MySQL, PostgreSQL, Oracle, SQL Server, MongoDB). The replication runs in your AWS account and the target list is AWS-oriented.
Comparison table
| Tool | Deployment | Pricing basis | MySQL/PG CDC | License |
|---|---|---|---|---|
| DBConvert Streams | Self-hosted | Per-seat ($49/mo) | Direct to DB/files/S3 | Proprietary (closed source), free eval |
| Debezium | Self-hosted | Free | Kafka topics (JDBC sink via Server) | Apache 2.0 |
| Estuary Flow | SaaS | $0.50/GB + $100/connector | Managed pipelines | Commercial |
| Airbyte | Self-managed / SaaS | Free core; volume cloud | Debezium-based | ELv2 |
| Striim | SaaS / self-managed | Quote-only | Streaming SQL platform | Proprietary |
| AWS DMS | AWS account | Instance-hours / DCU | Managed replication | Proprietary |
How to choose
- 1If the pain is Kafka ops and your databases are MySQL/PostgreSQL: DBConvert Streams removes the entire pipeline layer, not just Kafka.
- 2If the pain is self-hosting anything at all: Estuary (published pricing) or Airbyte Cloud (Debezium engine, managed).
- 3If you need Oracle/SQL Server sources: stay on Debezium, or move to AWS DMS / Striim / Qlik in the enterprise tier.
- 4If downstream consumers read Kafka topics: keep Debezium — that’s its home game and no alternative here plays it better.
Frequently asked questions
Can Debezium run without Kafka?
Yes — Debezium Server ships sinks including a JDBC sink that writes change events directly to a relational database with upsert semantics, schema evolution, and delete propagation. You still deploy, wire, and monitor that server yourself; what the alternatives change is who runs the moving parts.
What is the simplest Debezium alternative for MySQL/PostgreSQL?
DBConvert Streams — same log-based capture (binlog/WAL), delivered directly to the target database from one self-hosted app with the broker embedded. One moving part instead of four.
Is Debezium really free?
The license is (Apache 2.0). The bill is the Kafka/Connect infrastructure and the engineering time to run it. Teams replacing Debezium usually aren’t buying features — they’re buying back that time.
Try the flat-priced one first
Self-hosted MySQL/PostgreSQL CDC on your own databases — free evaluation, no credit card.