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Apache Kafka vs Apache Pulsar comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Apache Kafka
Ranking in Streaming Analytics
3rd
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
92
Ranking in other categories
No ranking in other categories
Apache Pulsar
Ranking in Streaming Analytics
22nd
Average Rating
8.0
Reviews Sentiment
6.2
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Streaming Analytics category, the mindshare of Apache Kafka is 3.8%, up from 3.5% compared to the previous year. The mindshare of Apache Pulsar is 2.9%, up from 2.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Streaming Analytics Mindshare Distribution
ProductMindshare (%)
Apache Kafka3.8%
Apache Pulsar2.9%
Other93.3%
Streaming Analytics
 

Featured Reviews

Amandeep Pawar - PeerSpot reviewer
Senior Engineer at Airy Software Technologies Private Limited
Event-driven architecture has improved asynchronous communication and supports high throughput
We can improve the high throughput because there are some limitations. We could add something to improve Apache Kafka. Based on my daily usage and analysis, there is a complex setup and management, which is one area requiring improvement. Apache Kafka does not have built-in message delay or scheduling capabilities. Apache Kafka cannot natively schedule messages. Limited message prioritization is also an area requiring improvement. Ordering is limited to a single partition. Large messages affect performance. Apache Kafka is optimized for many small to medium-sized messages, but large payloads increase network usage, increase disk usage, and slow down producers and consumers. I rate Apache Kafka eight out of ten instead of ten out of ten because operating an Apache Kafka cluster requires expertise in partitioning, application monitoring, and capacity planning. Self-managed deployment can become complex as the cluster grows. Pro-managed Apache Kafka services significantly reduce the operational overhead.
it_user1087029 - PeerSpot reviewer
Solution Architect at Vlaanderen connect.
The solution can mimic other APIs without changing a line of code
The solution operates as a classic message broker but also as a streaming platform. It operates differently than a traditional streaming platform with storage and computing handled separately. It scales easier and better than Kafka which can be stubborn. You can even make it act like Kafka because it understands Kafka APIs. There are even companies that will sell you Kafka but underneath it is Apache Pulsar. The solution is very compatible because it can mimic other APIs without changing a line of code.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The great thing about Apache Kafka is that we can seamlessly scale the application and, based on demand, we can add nodes without shutting down the environment."
"Kafka rendered itself suitable for our product offering, as it supports all the necessary requirements for a real-time pipeline."
"Kafka allows you to handle huge amounts of data and classify it into different categories. If you have huge amounts of data, Kafka is a very good solution for data classification."
"Apache Kafka has helped our organization handle larger volumes without affecting the infrastructure load."
"With such a large digest, I was genuinely impressed at the process being almost real-time."
"The most valuable features to me are replication, partitioning and easy integration with Apache Spark, which we use quite a bit for distributed processing."
"It is a stable solution...A lot of my experience indicates that Apache Kafka is scalable."
"The main advantage is increased reliability, particularly with regard to data and the speed with which messages are published to the other side."
"The solution operates as a classic message broker but also as a streaming platform."
 

Cons

"Too much dependency on the zookeeper and leader selection is still the bottleneck for Kafka implementation."
"It needs a separate cluster and a separate administrator to manage the Kafka cluster, adding an extra cost."
"The model where you create the integration or the integration scenario needs improvement."
"As an open-source project, Kafka is still fairly young and has not yet built out the stability and features that other open-source projects have acquired over the many years. If done correctly, Kafka can also take over the stream-processing space that technologies such as Apache Storm cover."
"One complexity that I faced with the tool stems from the fact that since it is not kind of a stand-alone application, it won't integrate with native cloud, like AWS or Azure."
"The GUI tools for monitoring and support are still very basic and not very rich. There is no help in determining a shard key for performance."
"There is a lot of information available for the solution and it can be overwhelming to sort through."
"This product guarantees at-least-once delivery."
"Documentation is poor because much of it is in Chinese with no English translation."
 

Pricing and Cost Advice

"The price for the enterprise version is quite high. For on-premise, there is an annual fee, which starts at 60,000 euros, but it is usually higher than 100,000 euros. The cost for a project including the subscription is usually between 100,000 to 200,000 euros. The cost also depends on the level of support. There are two different levels of support."
"It is approximately $600,000 USD."
"This is an open-source solution and is free to use."
"This is an open-source version."
"Apache Kafka is an open-sourced solution. There are fees if you want the support, and I would recommend it for enterprises. There are annual subscriptions available."
"I rate Apache Kafka's pricing a five on a scale of one to ten, where one is cheap and ten is expensive. There are no additional costs apart from the licensing fees for Apache Kafka."
"Kafka is an open-source solution, so there are no licensing costs."
"It's quite affordable considering the value it provides."
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Top Industries

By visitors reading reviews
Financial Services Firm
17%
Outsourcing Company
12%
Manufacturing Company
10%
Construction Company
9%
Financial Services Firm
17%
Outsourcing Company
8%
Government
7%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business33
Midsize Enterprise20
Large Enterprise51
No data available
 

Questions from the Community

What are the differences between Apache Kafka and IBM MQ?
Apache Kafka is open source and can be used for free. It has very good log management and has a way to store the data used for analytics. Apache Kafka is very good if you have a high number of user...
What is your experience regarding pricing and costs for Apache Kafka?
From the AWS perspective, the price is on the higher side. However, if you go for Apache Kafka, it is low. From a price perspective, if you are asking about Apache Kafka, I would rate it a nine.
What needs improvement with Apache Kafka?
Apache Kafka is abundant with features which only an expert-level person will be able to manage due to the high volume and high concurrent expectations. Apache Kafka groups could introduce themes o...
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Overview

 

Sample Customers

Uber, Netflix, Activision, Spotify, Slack, Pinterest
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Find out what your peers are saying about Databricks, Microsoft, Apache and others in Streaming Analytics. Updated: July 2026.
908,834 professionals have used our research since 2012.