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Hazelcast Platform vs Redis comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 15, 2026

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

Hazelcast Platform
Ranking in In-Memory Data Store Services
6th
Average Rating
8.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Redis
Ranking in In-Memory Data Store Services
1st
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
27
Ranking in other categories
NoSQL Databases (3rd), Managed NoSQL Databases (5th), Vector Databases (3rd), AI Software Development (9th)
 

Mindshare comparison

As of August 2026, in the In-Memory Data Store Services category, the mindshare of Hazelcast Platform is 10.5%, up from 3.5% compared to the previous year. The mindshare of Redis is 22.0%, up from 20.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
In-Memory Data Store Services Mindshare Distribution
ProductMindshare (%)
Redis22.0%
Hazelcast Platform10.5%
Other67.5%
In-Memory Data Store Services
 

Featured Reviews

PM
Director of Engineering at Visa
Distributed caching has reduced latency and now supports real-time stream processing
I think there are areas where Hazelcast Platform can improve, such as simplifying the cluster topology and sizing rules because they are still somewhat complex for someone new to Hazelcast. Understanding how the cluster topology forms and sizing rules work, such as partition balancing and traffic routing, should be much simpler. If one node has less RAM or a slightly slower CPU, it creates a cluster-wide performance bottleneck, which is critical, especially with transactional systems. Even though Hazelcast Platform has proven to be better, there can still be bottlenecks if the cluster topology and data partitioning are not easily understood. I also think that object handling and streamlined serialization should be prioritized; using standard Java serialization can be extremely slow. Providing native ultra-fast binary serialization out of the box, without requiring developers to write custom adapters, would be a significant improvement. It would be great if there were ready-to-use adapters for streamlined serialization and object handling.
RituRaj - PeerSpot reviewer
SDE 2 at Virtusa
Caching has improved response times and reduces database load for high-traffic applications
Redis is very reliable, but it could be improved in areas such as monitoring, debugging, and feasibility into memory use. Better built-in tools for observability would help teams manage it more effectively at scale. Managing memory efficiently and troubleshooting issues can sometimes require additional tooling, so these areas can also be improved.One practical challenge I experienced is managing memory efficiently. Since Redis is in-memory, we need to carefully configure eviction policies and monitor usage. Debugging cache-related issues such as stale data or cache invalidation can sometimes be tricky. Additionally, tuning memory usage and eviction policies needs to be planned very carefully.

Quotes from Members

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

Pros

"There have definitely been a lot more latency reductions and better SLA performance since using Hazelcast Platform, resulting in faster time to market overall for new features and capabilities because the architecture has become simpler."
"It is particularly efficient for cloud-based storage and operations."
"Overall, Redis helps us design more efficient applications by improving performance while allowing our backend services to scale more effectively."
"Since I started using Redis, I feel that the product is saving me some performance tuning time."
"The ability to fetch and save data quickly is valuable."
"I use Redis mostly to cache repeated data that is required."
"What I like best about Redis is its fast and easy use. It has interesting algorithms like HyperLogLog and provides useful features. It's also good for implementing scalable rate limiting."
"The solution's technical support team is good...The solution's initial setup process was straightforward."
"I find Redis valuable primarily for its caching capabilities, particularly in handling cache requests effectively. Its simplicity in managing key-value pairs for caching is one of its strengths, making it a preferred choice over more complex databases like MongoDB for specific use cases. However, I haven't explored Redis extensively for managing complex data structures beyond caching, as MongoDB might be more suitable for such scenarios."
 

Cons

"If one node has less RAM or a slightly slower CPU, it creates a cluster-wide performance bottleneck, which is critical, especially with transactional systems."
"The development of clusters could improve. Additionally, it would be helpful if it was integrated with Amazon AWS or Google Cloud."
"It's actually quite expensive."
"Redis could be improved by introducing a GUI to display key-value pair database information, as it is currently a CLI tool with no visual representation."
"There is a lack of documentation on the scalability of the solution."
"Managing memory efficiently and troubleshooting issues can sometimes require additional tooling, so these areas can also be improved."
"The initial setup took some time as our technical team needed to familiarize themselves with Redis."
"Redis should have an option to operate without Docker on a local PC."
"The first challenge is memory limitations, as Redis is primarily in-memory, making memory usage a key constraint."
 

Pricing and Cost Advice

Information not available
"The tool is open-source. There are no additional costs."
"Redis is not an overpriced solution."
"Redis is an open-source product."
"We saw an ROI. It made the processing of our transactions faster."
"Redis is an open-source solution. There are not any hidden fees."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
23%
Computer Software Company
9%
Comms Service Provider
6%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise6
Large Enterprise10
 

Questions from the Community

What needs improvement with Hazelcast Platform?
I think there are areas where Hazelcast Platform can improve, such as simplifying the cluster topology and sizing rules because they are still somewhat complex for someone new to Hazelcast. Underst...
What is your primary use case for Hazelcast Platform?
My main use case for Hazelcast Platform is to build distributed cache systems across different services that we have. The biggest use is the caching. Additionally, from time to time, we use this fo...
What advice do you have for others considering Hazelcast Platform?
My advice for others looking into using Hazelcast Platform is to study the architecture and data modeling thoroughly. Choosing the right topology for the application or platform is crucial when usi...
What needs improvement with Redis?
Making management easier, especially for teams operating large Redis clusters, would be helpful. More advanced built-in observability, performance insights, and automated recommendations would help...
What is your primary use case for Redis?
Redis is used primarily as a caching layer to provide a high-performance caching solution that improves application response times and reduces load on backend services and databases. We use it main...
What advice do you have for others considering Redis?
There are a couple of things to consider when using Redis. It is a supporting layer, not a main database. Identifying specific use cases where Redis can provide the most value, such as caching, ses...
 

Also Known As

No data available
Redis Enterprise
 

Overview

 

Sample Customers

British Gas, Airbus Defense, Ellie Mae, Gamesys
1. Twitter 2. GitHub 3. StackOverflow 4. Pinterest 5. Snapchat 6. Craigslist 7. Digg 8. Weibo 9. Airbnb 10. Uber 11. Slack 12. Trello 13. Shopify 14. Coursera 15. Medium 16. Twitch 17. Foursquare 18. Meetup 19. Kickstarter 20. Docker 21. Heroku 22. Bitbucket 23. Groupon 24. Flipboard 25. SoundCloud 26. BuzzFeed 27. Disqus 28. The New York Times 29. Walmart 30. Nike 31. Sony 32. Philips
Find out what your peers are saying about Redis, Amazon Web Services (AWS), Oracle and others in In-Memory Data Store Services. Updated: August 2026.
908,800 professionals have used our research since 2012.