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PostgreSQL vs Redis comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 5, 2025

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

PostgreSQL
Ranking in Vector Databases
9th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
125
Ranking in other categories
Open Source Databases (2nd)
Redis
Ranking in Vector Databases
4th
Average Rating
8.8
Reviews Sentiment
8.0
Number of Reviews
22
Ranking in other categories
NoSQL Databases (7th), In-Memory Data Store Services (1st)
 

Mindshare comparison

As of April 2025, in the Vector Databases category, the mindshare of PostgreSQL is 4.8%, up from 3.4% compared to the previous year. The mindshare of Redis is 4.9%, down from 6.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vector Databases
 

Featured Reviews

AdityaSharma3 - PeerSpot reviewer
Transaction processes are fast and good replication capability
Use cases include querying data warehouses and databases to fetch data for clients already working on PostgreSQL.  We also use Postgres for building reports It's a transactional database, so we use Postgres for most of our reporting. That's where it's helping. The query speed is fast, and the…
Yaseer Arafat - PeerSpot reviewer
Unmatched Performance and Scalability for Modern Applications
Redis has room for improvement in a few areas. Enhanced tools for managing and monitoring clusters would be beneficial, as would built-in security mechanisms like advanced encryption and granular access controls. Simplifying setup and configuration could make Redis more accessible to new users. Introducing more enterprise-grade features, such as better multi-tenancy support and improved backup and restore capabilities, would also be advantageous. For the next release, it would be great to see enhanced cluster management tools, native multi-region supports for better data redundancy, integrated analytics for deeper insights, AI and ML integration features, and improved developer experience through enhanced SDKs and tools.

Quotes from Members

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

Pros

"The solution is quite stable."
"The most valuable features are the price, stability, it is scalable and is used by our clients in small business environments, and it is a simple product to use."
"With the database, you can provide a multi-component at the same service with the same performance, scalability, or all those things."
"The system can perform faster analysis by providing it with a lot of memory. Speed is crucial for analytics. Currently, the main reason we haven't adopted Elasticsearch is that we lack the necessary expertise to manage it."
"The most valuable feature is the performance."
"The built-in code procedural language is the most valuable. It has a built-in layer for code procedures. Its installation is very easy and quick, and it is free. It is also stable, and its performance is also good."
"We often use PostgreSQL for operations monitoring because we are a manufacturing company."
"It is very useful for both structured and unstructured data. You can store unstructured and structured data in PostgreSQL. It is easy to use. You can easily manage things through PostgreSQL Admin. It is cost-effective. Its on-premise version is free. It is agnostic of on-premise or cloud. You can install it on the cloud or on-premises. It is available with all clouds, and you can also install it on desktop or Windows Servers."
"The online interface is very fast and easy to use."
"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."
"It makes operations more efficient. The information processing is very fast, and very responsive. It's all about the technology."
"Redis is a simple service that does what it promises."
"The performance of Redis is very fast."
"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 use Redis efficiently."
"I use Redis mostly to cache repeated data that is required."
"The most valuable features of Redis are its ease of use and speed. It does not have access to the disc and it is fast."
 

Cons

"PostgreSQL doesn't have a feature for temporal SQL, which is useful for gathering versions of data. This feature should be included in PostgreSQL. This feature is available in MariaDB, SQL Server, Oracle Database, and DB2."
"It could be more secure."
"It is possible that in the newer version this has been addressed, but I would like the deployment in microservices architecture could be improved."
"We often find the solution's datetime datatype challenging."
"I had some issues when I integrated with the Jupyter Notebook."
"The database and applications can become very slow."
"They need to have a better graphical interface. There is a tool called pgAdmin 4 that they use, which is free. It is written in Java, and it is slow. They need to have a better product that is similar to Toad for Oracle, but, of course, it is hard to get something that's really great and free. Other than that, it is great."
"If it was free to use, it would be the perfect solution."
"There is a lack of documentation on the scalability of the solution."
"The only thing is the lack of a GUI application. There was a time when we needed to resolve an issue in production. If we had a GUI, it would have been easier."
"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."
"The development of clusters could improve. Additionally, it would be helpful if it was integrated with Amazon AWS or Google Cloud."
"The tool should improve by increasing its size limits and handling dynamic data better. We use the client ID or associate it with a key for static content. The solution will not be easy for a beginner. Unless you understand SQL data, it will be difficult to understand and use Redis. It also needs to be user-friendly."
"Redis presents a single point of failure and lacks fault tolerance."
"The solution's pricing for a local installation is very expensive."
"If we use a lot of data, it will eventually cost us a lot."
 

Pricing and Cost Advice

"This solution can offer a cheaper choice for customers since it is open-source."
"We use the open-source version of PostgreSQL and not the enterprise edition."
"We do not pay for licensing."
"PostgreSQL is a free and open-source database."
"The need for our customers to pay for licences is contingent on their projects and budgets."
"It is free. In terms of operating costs, it basically needs the same platform on which Oracle runs."
"It is an open-source platform."
"It is open-source. If you use it on-premise, it is free. It also has enterprise or commercial versions. If you go for the cloud version, there will be a cost, but it is lower than Oracle or Microsoft."
"Redis is an open-source solution. There are not any hidden fees."
"Redis is an open-source product."
"Redis is not an overpriced solution."
"The tool is open-source. There are no additional costs."
"We saw an ROI. It made the processing of our transactions faster."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
12%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
22%
Computer Software Company
15%
Educational Organization
7%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

How does Firebird SQL compare with PostgreSQL?
PostgreSQL was designed in a way that provides you with not only a high degree of flexibility but also offers you a cheap and easy-to-use solution. It gives you the ability to redesign and audit yo...
What do you like most about PostgreSQL?
It's a transactional database, so we use Postgres for most of our reporting. That's where it's helping.
What is your experience regarding pricing and costs for PostgreSQL?
The tool is free of cost. For now, it's not about making money. But once we perfect it, we can offer it to customers willing to pay for support and other services. Most of my deployments are free.
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...
What needs improvement with Redis?
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. Additionally, better documentation is neede...
What is your primary use case for Redis?
My primary use case for Redis has been leveraging it as a high-performance, in-memory data store to support real-time features in web applications. For instance, I used Redis to manage live chat sy...
 

Comparisons

 

Also Known As

No data available
Redis Enterprise
 

Overview

 

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Find out what your peers are saying about PostgreSQL vs. Redis and other solutions. Updated: March 2025.
845,406 professionals have used our research since 2012.