Hazelcast Platform vs Redis comparison

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Hazelcast Platform

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Executive SummaryUpdated on Mar 15, 2026

Hazelcast Platform and Redis are competing in the in-memory data processing space. While Hazelcast is noted for support and flexible pricing, Redis has the upper hand with its robust feature set.

Features: Hazelcast Platform offers distributed in-memory data processing, enabling high scalability and resilience. It provides real-time analytics and machine learning capabilities. Redis, with its simplicity and speed, supports various data structures and delivers high throughput with low latency.

Ease of Deployment and Customer Service: Redis is known for straightforward deployment options, including cloud services and extensive documentation. Hazelcast's deployment may be more complex, but it is supported by comprehensive customer service.

Pricing and ROI: Hazelcast provides flexible licensing models, ideal for varied scale requirements, often leading to favorable ROI in analytical use cases. Redis, being open-source, reduces initial setup costs, offering budget-friendly solutions and long-term savings through its performance.

To learn more, read our detailed In-Memory Data Store Services Report (Updated: April 2026).

In-Memory Data Store Services

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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

7th

Average Rating

8.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Redis

Ranking in In-Memory Data Store Services

1st

Average Rating

8.8

Reviews Sentiment

5.9

Number of Reviews

Ranking in other categories

NoSQL Databases (4th), Managed NoSQL Databases (6th), Vector Databases (4th), AI Software Development (13th)

Mindshare comparison

As of May 2026, in the In-Memory Data Store Services category, the mindshare of Hazelcast Platform is 10.6%, up from 2.5% compared to the previous year. The mindshare of Redis is 22.0%, up from 16.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

In-Memory Data Store Services Mindshare Distribution
Product	Mindshare (%)
Redis	22.0%
Hazelcast Platform	10.6%
Other	67.4%

In-Memory Data Store Services

Featured Reviews

Pamahesh Pamahesh

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.

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Varuns Ug

Senior software developer at Makemytrip

Caching has accelerated complex workflows and delivers low latency for high-traffic microservices

A few features of Redis that I use on a day-to-day basis and feel are among the best are extremely low latency and high throughput. Since Redis is in-memory, it makes it ideal for cases such as caching and rate limiting where response time is critical. TTL expiry support is very useful in Redis as it allows me to automatically evict stale data without manual cleanup, which is something I use heavily in my caching strategy. Another point I can mention is that the rich data structures such as strings, hashes, and even sorted sets are very powerful. I have used strings for caching responses and counters, whereas I have used hashes for storing structured objects. One more feature I can tell you about is atomic operations. Redis guarantees atomicity for operations such as incrementing a counter, which is very useful for rate limiting and avoiding race conditions in distributed systems. Finally, I want to emphasize that Redis is easy to scale and integrate, whether through clustering or using a distributed cache across microservices. Redis has impacted my organization positively by providing default support that is very useful. For metrics, in one of my core systems, introducing Redis as a distributed cache helped me achieve around an 80% cache hit rate, which reduced repeated downstream services. Real API latency also improved from around two seconds to approximately 450 milliseconds for P99. It also helped reduce the load on dependent services and databases, which improved overall system reliability.

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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."

"Redis has multiple valuable features such as being a free and reliable open-source tool."

"The performance of Redis is very fast."

"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."

"Since I started using Redis, I feel that the product is saving me some performance tuning time."

"Redis is a simple, powerful, and fast solution."

"Redis provides an easy setup and operation process, allowing users to quickly connect and use it without hassle."

"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."

"Redis is good for distributed caching management."

More Redis pros

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 initial setup took some time as our technical team needed to familiarize themselves with Redis."

"For the PubSub feature, we had to create our own tools to monitor the events."

"There are some features from MongoDB that I would like to see included in Redis to enhance its overall efficiency, such as the ability to perform remote behaviour. MongoDB is more efficient in handling updates than deletions and is quicker in processing updates, but it can be slower regarding deletions. This can sometimes pose a challenge, especially when dealing with large datasets or frequent data manipulations that involve deletions. In such cases, I often rewrite columns or update values instead of directly deleting data, as it can be more efficient."

"I would prefer it if there was more information available about Redis. That would make it easier for new beginners. Currently, there is a lack of resources."

"Redis could improve its efficiency in handling locally stored data, not just Amazon Cloud or Google Cloud."

"Sometimes, we use Redis as a cluster, and the clusters can sometimes suffer some issues and bring some downtime to your application."

"In future releases, I would like Redis to provide its users with an option like schema validation. Currently, the solution lacks to offer such functionality."

"It's actually quite expensive."

More Redis cons

Pricing and Cost Advice

Information not available

"Redis is an open-source solution. There are not any hidden fees."

"The tool is open-source. There are no additional costs."

"We saw an ROI. It made the processing of our transactions faster."

"Redis is an open-source product."

"Redis is not an overpriced solution."

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

24%

Computer Software Company

10%

Comms Service Provider

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	6
Large Enterprise	10

Questions from the Community

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What do you like most about Redis?

Redis is better tested and is used by large companies. I haven't found a direct alternative to what Redis offers. Plus, there are a lot of support and learning resources available, which help you u...

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What needs improvement with Redis?

Overall, Redis is a powerful and reliable tool, but there are a few areas for improvement. One limitation is that Redis is memory-based, so scaling can become expensive compared to disk-based syste...

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What is your primary use case for Redis?

My main use case for Redis is caching frequently accessed data to improve performance and reduce database load. For example, I cache API responses and user-related data so that repeated requests ca...

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Compared 13% of the time

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Compared 8% of the time

Azure Cache for Redis vs Hazelcast Platform

Compared 8% of the time

Google Cloud Memorystore vs Hazelcast Platform

Compared 7% of the time

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Oracle Coherence vs Redis

Compared 5% of the time

Upstash vs Redis

Compared 5% of the time

Red Hat Data Grid vs Redis

Compared 5% of the time

Azure Cache for Redis vs Redis

Compared 5% of the time

MongoDB Enterprise Advanced vs Redis

Compared 4% of the time

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Product Reports

In-Memory Data Store Services

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Also Known As

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Redis Enterprise

Overview

Hazelcast Platform provides a real-time, cloud-native data processing environment that excels in handling high-velocity data. Its architecture supports complex event processing and strong integration, making it suitable for dynamic and fast-paced tech landscapes.

Designed for scalable performance, Hazelcast Platform offers an in-memory computing solution that optimizes data-driven operations. Its architecture simplifies distributed processing, making it essential for applications that demand high-speed data transactions and low-latency access. Typical use cases include financial services processing, operational reporting, and enhancing application responsiveness. By enabling seamless scaling, it addresses requirements for processing large volumes of data in distributed environments, particularly in cloud and on-premises deployments.

What are the key features?

In-Memory Data Grid: Provides fast data access and processing by storing data in-memory.
Event Stream Processing: Captures and processes real-time data streams efficiently.
Scalability: Dynamically scales to meet workload demands.
Fault Tolerance: Ensures reliability with built-in redundancy and recovery mechanisms.

What benefits and ROI should users consider?

Enhanced Performance: Delivers real-time processing capabilities for quick data insights.
Cost Efficiency: Optimizes resources with its scalable architecture, reducing overhead costs.
Operational Agility: Adapts rapidly to changing transactional volumes and requirements.

In the finance industry, Hazelcast Platform supports real-time trade analysis, fraud detection, and risk management enhancements. In e-commerce, it powers personalized user experiences through instantaneous inventory tracking and customer interaction data analysis. Its adaptability makes it a versatile choice for integrated solutions across industries.

Hazelcast

Redis offers high-speed, in-memory storage, renowned for real-time performance. It supports quick data retrieval and is used commonly in applications like analytics and gaming.

Renowned for real-time performance, Redis delivers high-speed in-memory storage, making it a favorite for applications needing quick data retrieval. Its diverse data structures and caching capabilities support a broad array of use cases, including analytics and gaming. Redis ensures robust scalability with master-slave replication and clustering, while its publish/subscribe pattern renders it reliable for event-driven applications. The solution integrates smoothly with existing systems, minimizing performance tuning needs. Although documentation on scalability and security could be improved, Redis remains cost-effective and stable, commonly utilized in cloud environments. Enhancing integration with cloud services like AWS and Google Cloud and refining GUI may improve usability.

What are the key features of Redis?

High Speed: In-memory data storage for swift access.
Scalability: Master-slave replication and clustering for growth.
Data Structures: Supports diverse types for varied uses.
Persistence: RDB snapshots and AOF logs ensure durability.
Integration: Seamless integration reduces tuning efforts.

What should users look for in Redis reviews?

Performance: Real-time data retrieval boosts efficiency.
Cost-Effectiveness: Stable, budget-friendly implementation.
Versatility: Suitable for diverse environments and platforms.
Reliability: Ensures data persistence and high availability.

Redis finds application across industries for tasks like caching to improve application performance and speed, minimizing database load. It enables real-time processing for session storage, push notifications, and analytics. As a messaging platform, Redis handles high traffic and supports replication and clustering for cross-platform scalability.

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

In-Memory Data Store Services