--- title: "Debezium vs Estuary Flow: Which is Better in 2026? | App Stack Builder" description: "Debezium vs Estuary Flow compared for 2026: pricing, free tiers, features, pros & cons. See which change data capture (cdc) tool is the better fit for your startup." source: https://appstackbuilder.com/compare/debezium-vs-estuary retrieved: 2026-11-10 --- ![](https://www.google.com/s2/favicons?domain=debezium.io&sz=128) vs ![](https://appstackbuilder.com/logos/estuary.ico) # Debezium vs Estuary Flow: Which is Better in 2026? Change Data Capture (CDC) [Debezium](https://appstackbuilder.com/tools/debezium) and [Estuary Flow](https://appstackbuilder.com/tools/estuary) are both Change Data Capture (CDC) tools, made for different people. Debezium is for backend and platform engineers who want log-based CDC under an Apache licence and are happy to operate it. Estuary Flow is for teams that need database changes in their warehouse or stream within seconds and want a managed service priced by data volume. Quick verdict There’s no single winner; pick on your constraint. Choose Debezium if you want CDC with no licence fee at any volume. Choose Estuary Flow if you want real-time CDC without running Kafka or Debezium yourself. ## Debezium vs Estuary Flow: Side by Side | | Debezium | Estuary Flow | | ---------------- | --------------------------------------------------------------- | ----------------------------------------------------------------- | | Category | Change Data Capture (CDC) | Change Data Capture (CDC) | | What it is | Open-source CDC engine | Managed real-time CDC and ELT | | Source databases | 8 stable database connectors, 10 incubating | Databases plus SaaS sources (200+ connectors) | | Where it runs | Your infrastructure: Kafka Connect, Debezium Server or embedded | Estuary’s cloud or private deployment | | How you pay | Free (Apache 2.0) | $0.50 per GB plus a monthly fee per connector | | Free access | Free | Free up to 10 GB and 2 connectors a month | | Pricing | Free | Free · then usage-based | | Starting price | Free tier available | Free tier available | | Free tier | ✓ | ✓ | | Rating | 4.6 | 4.3 | | Best for | Change Data Capture (CDC): open-source CDC, Kafka, Postgres WAL | Change Data Capture (CDC): managed CDC, per-GB pricing, real-time | Ratings are App Stack Builder’s editorial score out of 5, not an average of user reviews. ## Pros & Cons ![](https://www.google.com/s2/favicons?domain=debezium.io&sz=128) [Debezium](https://appstackbuilder.com/tools/debezium) * ✓Free at any volume * ✓Log-based CDC, not polling * ✓Runs with or without Kafka * ✓Wide database coverage * ✗You operate it yourself * ✗Snapshot and schema-change handling needs care * ✗No vendor support contract from the project ![](https://appstackbuilder.com/logos/estuary.ico) [Estuary Flow](https://appstackbuilder.com/tools/estuary) * ✓Real-time CDC rather than batch * ✓Pricing you can predict from data volume * ✓Backfill and streaming in one pipeline * ✓Cheaper than MAR billing on busy tables * ✗Smaller connector catalogue * ✗Per-connector fee hurts wide, thin pipelines * ✗Younger product with a smaller community ## Key Features Compared ### Debezium * ✓Apache 2.0, hosted by the Commonhaus Foundation; 3.7.1.Final released November 6 2026 * ✓Stable connectors: PostgreSQL, MySQL, MariaDB, MongoDB, SQL Server, Oracle, Db2 and CockroachDB * ✓Incubating: Cassandra, Spanner, Vitess, TiDB, SQLite, Informix and others * ✓Runs on Kafka Connect, as Debezium Server (no Kafka needed) or embedded in a Java app * ✓Debezium Platform and an operator for running on Kubernetes ### Estuary Flow * ✓Developer: free for up to 10 GB a month and 2 connector instances, no card and no time limit * ✓Cloud: $0.50 per GB plus $100 a month per connector instance, $50 each after the sixth * ✓Data counts once on capture and again on delivery, so 100 GB moved can bill as 200 GB * ✓Connector fees prorated by the hour; no minimum on pay-as-you-go * ✓Cloud starts with a 30-day free trial once you pass the Developer limits * ✓Enterprise: annual contract with committed usage and discounts ### Choose Debezium if… * ✓You want CDC with no licence fee at any volume. * ✓You already run Kafka, or want to send changes to another broker through Debezium Server. * ✓You need control over snapshots, filtering and event format. [Debezium review & pricing ](https://appstackbuilder.com/tools/debezium) ### Choose Estuary Flow if… * ✓You want real-time CDC without running Kafka or Debezium yourself. * ✓You prefer a bill based on GB moved over one based on rows changed. * ✓You need a backfill and a live stream in the same pipeline. [Estuary Flow review & pricing ](https://appstackbuilder.com/tools/estuary) ## Frequently Asked Questions Is Debezium better than Estuary Flow?⌄ There’s no single winner; pick on your constraint. Choose Debezium if you want CDC with no licence fee at any volume. Choose Estuary Flow if you want real-time CDC without running Kafka or Debezium yourself. What is the difference between Debezium and Estuary Flow?⌄ What it is. Debezium: Open-source CDC engine. Estuary Flow: Managed real-time CDC and ELT. Source databases. Debezium: 8 stable database connectors, 10 incubating. Estuary Flow: Databases plus SaaS sources (200+ connectors). Where it runs. Debezium: Your infrastructure: Kafka Connect, Debezium Server or embedded. Estuary Flow: Estuary’s cloud or private deployment. How you pay. Debezium: Free (Apache 2.0). Estuary Flow: $0.50 per GB plus a monthly fee per connector. Free access. Debezium: Free. Estuary Flow: Free up to 10 GB and 2 connectors a month. Debezium vs Estuary Flow: which is cheaper?⌄ Debezium pricing: Free. Estuary Flow pricing: Free · then usage-based. Confirm current pricing on each tool's official site, as plans change. Which is rated higher, Debezium or Estuary Flow?⌄ On our editorial score, Debezium is 4.6 out of 5 and Estuary Flow is 4.3 out of 5, so Debezium is slightly ahead. This is our own score, not an average of user reviews. When should I skip both Debezium and Estuary Flow?⌄ Skip Debezium if you don’t want to run CDC infrastructure. Estuary Flow manages it for a per-GB fee. Skip Estuary Flow if you have many small sources. The per-connector fee adds up; Debezium is free to self-host. Sources · tool facts checked November 2026 1. 1.[Debeziumdebezium.io ](https://debezium.io/) 2. 2.[Estuary pricingestuary.dev ](https://estuary.dev/pricing/) See more options in our guide to the [best change data capture (cdc) tools for startups](https://appstackbuilder.com/categories/cdc). ## Still not sure which to pick? Get a free, AI-powered tech stack, including the best change data capture (cdc) pick for your budget and team, in 60 seconds. [Build my stack free ](https://appstackbuilder.com/build-stack)