Confluent alternatives: 11 event streaming platforms compared

Teams look beyond Confluent when the invoice turns into a sum of meters, when a cheaper cluster tier comes with a lower uptime promise, or when they would like a vendor that is not owned by IBM. The alternatives below range from a Utrecht governance layer and Finnish hosted Kafka to NATS, Pulsar, Flink and the three hyperscaler services.

Short answer: Axual, Aiven for Apache Kafka and Synadia head the list of Confluent alternatives drawn from our event streaming platform ranking. Where a category has smaller vendors worth recommending, they occupy the first three places and the big brands come below them. Axual is the one to try if many teams share Kafka, approvals matter more than raw throughput, and a Dutch vendor is preferred. These 11 products are all in Best Event Streaming Platforms in 2026; the notes say how each one compares with Confluent.

Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. Every vendor link is marked the same, whatever the arrangement behind it. How that works.

Confluent

#9 of 12 in our event streaming platform ranking

  • Pricing: Basic cluster from nothing a month; Standard and Enterprise rates published per eCKU plus data in and out
  • Established in: United States
  • Built for: Large Kafka estates wanting connectors, governance and processing from the original Kafka vendor
  • Not for: Small teams wanting one fixed monthly figure with no metering
01

Why buyers look past Confluent

  1. 01

    Every cluster is billed on four or five meters

    Confluent's pricing page charges per elastic unit hour, per GB written and read, and per GB-month stored, and then adds separate meters: connectors by throughput and by task-hour, Flink by CFU-minute, Stream Governance by environment-hour. Standard starts at about $385 a month and Enterprise at about $895, both at an assumed 70% utilisation. The page gives no dollar figure for connectors, Flink or governance, so a forecast needs the calculator.

  2. 02

    The cheapest tiers carry the weakest guarantees

    Basic costs nothing to start, with the first unit free, but its uptime SLA is 99.5% and it stops at 1,500 partitions and 5 TB. Standard promises 99.9% on one unit and 99.99% only from two. Freight, at $2,300 a month with a minimum of two units, accepts relaxed latency of roughly one to two seconds. Whoever moves between tiers to fix one limit meets another.

  3. 03

    An American company with an IBM label

    The vendor's about page lists headquarters in Mountain View, California, and a European subsidiary in London, and the footer links describe Confluent as an IBM company. The page we read says nothing about data residency, and cloud prices vary by region. A buyer with a procurement rule for European vendors will want to ask these questions before the contract, not after.

02

11 alternatives at a glance

Challengers first, then established names
AlternativeHeadquartersFree optionPricing model Switch ifOur rank
AxualNetherlandsNo free tierOn requestmany teams share Kafka, approvals matter more than raw throughput, and a Dutch vendor is preferred#1
Aiven for Apache KafkaFinlandYesPublishedyou want plain Kafka with a monthly price you can read and a Finnish company behind it#2
SynadiaUnited StatesYesPublishedservices need light request-reply and streams, and you accept dropping the Kafka API#5
StreamNativeUnited StatesNo free tierSee profileKafka clients should keep working while Pulsar features and a clear starting price are wanted#4
RedpandaUnited StatesNo free tierSee profileyou want the Kafka API on a leaner engine and could run it in your own cloud account#3
InstaclustrNot stated by the vendorNo free tierSee profileyou want to see infrastructure cost apart from the management fee, in your own cloud account#7
SolaceCanadaNo free tierSee profileevents must flow between data centres, clouds and edge sites, not only inside one Kafka cluster#8
VervericaGermanyNo free tierSee profilestream processing is the main use and the brokers can stay where they are#6
Amazon MSKUnited StatesNo free tierSee profileall workloads already sit on AWS and one cloud bill is simpler than a second vendor#10
Azure Event HubsUnited StatesNo free tierSee profileyour estate runs on Azure and Kafka clients only need an ingestion endpoint#11
Google Cloud Pub/SubUnited StatesNo free tierPublishedtraffic is uneven, Google Cloud is home and clients can be rewritten for a different API#12
03

What each one does differently

Axual

Netherlands · On request

Axual B.V. in Utrecht wraps Apache Kafka and Strimzi in a portal where each team asks for topics and schemas and the data owner approves access. Several teams share one cluster under quotas, so a new team does not mean a new cluster. It is quoted per deployment, with a free local Docker Compose run to try the portal first, and has no self-service sign-up.

Switch from Confluent if many teams share Kafka, approvals matter more than raw throughput, and a Dutch vendor is preferred.

Axual holds rank 1 among 12 entries in our event streaming platform guide →

Aiven for Apache Kafka

Finland · Published

Aiven, headquartered in Helsinki, runs upstream Apache Kafka on AWS, Google Cloud, Azure and smaller clouds. Its Kafka page lists a Free plan, Developer at $35 a month and Professional from $180 a month, and a 99.99% uptime SLA. A managed Schema Registry based on Karapace and over 50 connectors are mentioned. Larger clusters go through sales.

Switch from Confluent if you want plain Kafka with a monthly price you can read and a Finnish company behind it.

Aiven for Apache Kafka holds rank 2 among 12 entries in our event streaming platform guide →

Synadia

United States · Published

Synadia sells NATS, a different protocol from Kafka, with JetStream for persisted streams. Synadia Cloud has a free Personal plan, Starter at $49 and Pro at $199 a month, each a fixed pool of connections and data, while Enterprise adds a support SLA and larger messages. Starter and Pro carry no support SLA, and moving over means rewriting clients.

Switch from Confluent if services need light request-reply and streams, and you accept dropping the Kafka API.

Why Synadia is #5 among 12 event streaming platform products →

StreamNative

United States · See profile

StreamNative offers Apache Pulsar from the people who created it, and one cluster can speak Pulsar, Kafka, MQTT and REST. Serverless starts at $73 a month with a free trial, BYOC at $365 and Dedicated at $505. Private Link, VPC peering and customer-held keys sit behind Pro tiers. The Kafka protocol makes a gradual move from existing clients possible.

Switch from Confluent if Kafka clients should keep working while Pulsar features and a clear starting price are wanted.

Read our review of StreamNative (position 4 of 12 on the event streaming platform list) →

Redpanda

United States · See profile

Redpanda is a Kafka-compatible broker written in C++, sold as Serverless on AWS and GCP, BYOC inside your own VPC and a self-run Enterprise Edition with a 30-day trial. Serverless runs pay as you go or on an annual commit, while BYOC and Enterprise prices are not on the page. The Community Edition is under a Business Source License that bars reselling it as a service.

Switch from Confluent if you want the Kafka API on a leaner engine and could run it in your own cloud account.

#3 out of 12 event streaming platform products: read the Redpanda review →

Instaclustr

Not stated by the vendor · See profile

NetApp Instaclustr runs Apache Kafka 4.0 on AWS, Azure, Google Cloud and on-premises. In its bring-your-own-cloud model the quoted fee covers management only, and VMs, storage and firewalls are paid to the cloud provider, which makes the infrastructure bill visible. A free trial exists, annual commits earn discounts, and prices come from a browser-side calculator in US dollars.

Switch from Confluent if you want to see infrastructure cost apart from the management fee, in your own cloud account.

Instaclustr, #7 of 12 in our event streaming platform ranking →

Solace

Canada · See profile

Solace, from Ottawa, sells event brokers as a cloud service, as software or as appliances, linked into an event mesh across sites. Licences are Foundation, Accelerate or Scale packages on a fixed subscription or annual drawdown, with a 30-day trial. Cloud broker sizes from ENT-250 to ENT-100K follow connection and queue counts. No price is on the page.

Switch from Confluent if events must flow between data centres, clouds and edge sites, not only inside one Kafka cluster.

Check Solace in the ranked list (8 out of 12, event streaming platform) →

Ververica

Germany · See profile

Ververica GmbH of Munich builds on Apache Flink and processes streams that arrive from a broker, so it replaces the Flink part of Confluent and not the Kafka part. The data plane runs in your own AWS or Azure account, Google Cloud is marked as coming, or self-managed on any Kubernetes cluster, including air-gapped ones. The pages read carry no prices.

Switch from Confluent if stream processing is the main use and the brokers can stay where they are.

Our event streaming platform guide puts Ververica at 6 of 12; read why →

Amazon MSK

United States · See profile

Amazon MSK runs Kafka inside an AWS account, with Provisioned clusters on Express or Standard brokers and a Serverless mode, plus Connect and Replicator. Provisioned is metered per broker-hour and storage, Serverless per cluster-hour, partition-hour and GB in and out. The rate tables load in the browser, so we could not read figures on a plain fetch.

Switch from Confluent if all workloads already sit on AWS and one cloud bill is simpler than a second vendor.

Why Amazon MSK is #10 among 12 event streaming platform products →

Azure Event Hubs

United States · See profile

Azure Event Hubs is Microsoft's ingestion service in Basic, Standard, Premium and Dedicated tiers. Kafka clients and Schema Registry begin at Standard, not Basic, and retention rises from 1 day to 7 and then 90 days on Premium and Dedicated. Charges follow hourly throughput, processing or capacity units. It is a Kafka endpoint, not a full Kafka cluster.

Switch from Confluent if your estate runs on Azure and Kafka clients only need an ingestion endpoint.

Azure Event Hubs review, listed at 11 of 12 event streaming platform products →

Google Cloud Pub/Sub

United States · Published

Google Cloud Pub/Sub has no cluster to size. It bills bytes published and delivered at $40 per TiB after 10 GiB free each month, and each subscription multiplies the delivered bytes. Subscriptions writing to BigQuery or Cloud Storage cost $50 per TiB. It is not Kafka compatible, and its Lite variant was scheduled to close on 18 March 2026.

Switch from Confluent if traffic is uneven, Google Cloud is home and clients can be rewritten for a different API.

Google Cloud Pub/Sub holds rank 12 among 12 entries in our event streaming platform guide →

04

When Confluent is still the right choice

Confluent remains the sensible choice when a team wants the widest set of Kafka-related parts from one supplier. Its Basic plan lists 80+ fully managed connectors, Flink runs on the same bill, Stream Governance covers schemas, and the service spans AWS, Azure and Google Cloud. Enterprise reaches 96,000 partitions and 1,920 MBps in, and Freight offers a low storage price of $0.03 per GB-month for relaxed latency. If connectors, Flink and governance are already in use and spend is committed annually, a split across vendors rarely saves money.

05

What moving off Confluent involves

  1. 01

    Inventory what sits on top of the brokers

    List topics, connectors, Flink jobs and schemas per environment, and note which plan each runs on. Connectors and Flink are billed separately at Confluent, and each needs an equivalent before the brokers can move.

  2. 02

    Check Kafka client compatibility before the first migration

    Several alternatives speak the Kafka protocol, while Synadia, Pub/Sub and Solace do not. Test your producers, consumers and schema handling against a trial cluster, and decide what you rewrite and what you replicate.

  3. 03

    Mirror the topics, then cut over service by service

    Replicate topics to the new platform and move consumers first, then producers, one service at a time. Leave an annual commitment unrenewed until the last service has moved.

06

Questions about replacing Confluent

7 answers
What is the best alternative to Confluent as an event streaming platform?

Axual ranks first in our list of Confluent alternatives. It is a Utrecht company that packages Apache Kafka and Strimzi with a self-service portal for topics, schemas and approvals. Aiven for Apache Kafka, Synadia and StreamNative follow.

Is there a European alternative to Confluent?

Yes. Axual B.V. is based in Utrecht, Aiven in Helsinki and Ververica GmbH in Munich. Axual and Aiven run Kafka, and Ververica covers Flink stream processing only. Instaclustr and Solace are not stated as European.

Which Confluent alternative has a free plan?

Aiven lists a Free plan for test streams and Synadia a free Personal plan at $0 a month. StreamNative offers a free trial on Serverless, and Confluent's Basic cluster also starts at zero with its first unit free.

How does Confluent pricing compare with Aiven?

Confluent charges per elastic unit hour plus GB in, out and stored, with Standard at about $385 a month and Enterprise at about $895.

Aiven lists Developer at $35 and Professional from $180 a month. The two meter different things, so compare on your own volumes.

Can I keep my Kafka clients when leaving Confluent?

With Axual, Aiven, Redpanda, Instaclustr and StreamNative, yes in principle, as they run or speak the Kafka protocol. Azure Event Hubs gives Kafka access from Standard upward. NATS at Synadia and Pub/Sub use other APIs, so clients change.

Which alternative replaces Confluent's Flink service?

Ververica builds on Apache Flink and runs in your AWS or Azure account or on Kubernetes. It does not replace the broker, so it pairs with one of the Kafka services above.

Is a self-managed option available instead of Confluent Cloud?

Confluent Platform has a free download under the Confluent Community or Confluent licence. Redpanda's Enterprise Edition, Ververica on Kubernetes and Axual on your own Kubernetes are other self-run routes.

—

Sources

Checked 2 November 2026
  • Confluent Cloud pricing: Basic, Standard, Enterprise, Freight rates and starting costs, SLAs, partition and throughput limits, connector, Flink and governance billing units, 80+ connectors, annual commitments, Confluent Platform licences.
  • Confluent about: Mountain View headquarters, Confluent Europe Ltd in London, IBM company wording, no data residency statement.
  • Axual: Utrecht, Kafka and Strimzi with self-service portal, quotas, quoted per deployment, local Docker Compose run.
  • Aiven Kafka: Free, Developer $35, Professional from $180 a month, 99.99% SLA, Karapace Schema Registry, 50+ connectors, clouds.
  • Synadia Cloud: Personal free, Starter $49, Pro $199, Enterprise custom, message size limits, no support SLA on Starter and Pro.
  • StreamNative pricing: Serverless from $73, BYOC from $365, Dedicated from $505, free trial, Pulsar, Kafka, MQTT and REST.
  • Redpanda pricing: Serverless pay as you go or annual commit, BYOC annual commitment, Enterprise Edition 30-day trial.
  • Instaclustr managed Kafka: Kafka 4.0, management fee in BYOC, infrastructure paid to cloud, free trial, clouds and on-premises.
  • Solace: Ottawa, event mesh, Foundation, Accelerate and Scale packages, 30-day trial, ENT-250 to ENT-100K broker sizes.
  • Ververica: Munich, Apache Flink, BYOC on AWS and Azure, Kubernetes self-managed, no prices shown.
  • Amazon MSK: Provisioned Express and Standard brokers, Serverless, Connect, Replicator, billing meters.
  • Azure Event Hubs: Basic, Standard, Premium and Dedicated tiers, Kafka endpoint and Schema Registry from Standard, retention steps.
  • Google Cloud Pub/Sub: $40 per TiB, 10 GiB free monthly, $50 per TiB for BigQuery and Cloud Storage subscriptions, Lite shutdown 18 March 2026.
—

Who wrote this

Last reviewed 2 November 2026

Sebastiaan Smits

Founder · Amsterdam, Netherlands

Founder of The Knowledge Engineers and of 2 Steps Ahead, an AI search visibility agency. Editorially responsible for every page on this site; research and drafting are AI-assisted.

Checked and edited by Sebastiaan Smits, last on 2 November 2026. The editorial process explains the method.

—

Alternatives to other products