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Firebird SQL vs PostgreSQL comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 2, 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

Firebird SQL
Ranking in Open Source Databases
3rd
Average Rating
7.8
Reviews Sentiment
7.4
Number of Reviews
15
Ranking in other categories
Embedded Database (3rd)
PostgreSQL
Ranking in Open Source Databases
2nd
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
125
Ranking in other categories
Vector Databases (9th)
 

Mindshare comparison

As of February 2026, in the Open Source Databases category, the mindshare of Firebird SQL is 12.5%, down from 18.7% compared to the previous year. The mindshare of PostgreSQL is 14.3%, down from 18.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Open Source Databases Market Share Distribution
ProductMarket Share (%)
PostgreSQL14.3%
Firebird SQL12.5%
Other73.2%
Open Source Databases
 

Featured Reviews

reviewer1991775 - PeerSpot reviewer
Chapter Lead at a financial services firm with 201-500 employees
An open-source database to hold customer data, but its performance should be improved
Firebird SQL significantly improved our data management in many parts of our self-developed ERP system. I rate the solution's performance and speed a six out of ten. Two or three database administrators are needed to maintain the solution. A few years ago, migrating data to or from Firebird SQL was a little bit difficult because the identifier names for tables or stored procedures were limited to 20 to 30 characters. Transferring the structure to Firebird SQL was difficult, but they fixed it in version 3, which was much easier. We are developing software with Delphi, and Delphi is also by Embarcadero. Using InterBase or Firebird SQL databases is very common, and you have some good tools for developing with Firebird SQL. Overall, I rate the solution a seven out of ten.
AC
Senior Assosiate Consultant at Applied Materials
Real-time data capture optimizes database performance but Views create problems
One of the most valuable features is real-time data capture; it optimizes database performance. I think using real-time data capture reduces job running time and the amount of data sent at once with batch loads. Replicating the same data daily isn't optimal, so real-time reception improves application performance and reduces latency.

Quotes from Members

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

Pros

"I find the ease of deployment to be the most valuable aspect of this solution."
"It helps us in detecting all kinds of problems in the code, such as bad quality, unclear code, or any violation in the code or best practices."
"The solution is very useful for stock management."
"I like that we don't have to pay external fees to migrate this data. So, we are looking to relocate from Postgres or EDB."
"We are happy with the event capabilities of Firebird SQL database. We can raise events from it and display them in our application."
"Firebird SQL is an open-source solution."
"The reliability and ease of management are very valuable."
"I can deploy it on Linux, Mac OS, and Windows — it's very easy."
"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."
"The solution is open-source and free to use."
"PostgreSQL is very easy to use. I have experience in Oracle SQL and PostgreSQL uses the same syntax which makes it is easy for me to develop."
"We are able to create many different types of jobs and items with this solution making it one of the most valuable features."
"The solution is quite stable."
"It is easy to install and easy to manage. There is no license on it, so it is free. There is high compatibility with Oracle, and there are many tools for the migration of data from Oracle to Postgre."
"Postgres has some functions called JSONB aggregators or other aggregators, which are quite useful."
"It's quite scalable."
 

Cons

"On large databases, we have some difficulties."
"Database sharing is a capability that Firebird SQL lacks."
"The solution could improve by providing partitioning and encryption. It is not at the higher level of database solution but it could be with some upgrades."
"The main feature I expect is to be able to work with different databases at the same time because that's a wishlist item for me."
"In the next release, it should support JSON, XML, and replication with third-party tools."
"Firebird SQL's performance has slowed since Firebird SQL 3 or 3.5 versions, where they developed over-the-wire encryption."
"I don't think the solution is very scalable, because the scalability of the performance when using more than one process is not very good."
"The security of the users could improve in Firebird SQL."
"The performance of PostgreSQL could improve."
"If it was free to use, it would be the perfect solution."
"The interface climate could be better."
"I don't think PostgreSQL supports bulk databases, so it needs to have more capabilities in terms of managing the bulk data."
"Postgres should focus on building a stronger knowledge base. They also need to expand their integration capabilities, so more tools and resources are available to manage it."
"The database and applications can become very slow."
"I find it difficult to get connectors on the tool. For example, .NET has only one free provider in PostgreSQL. I need to pay the provider if I need something more sophisticated features. Other languages like PHP and Java have good community support. We need community support for .NET."
"Sometimes, the views create problems. If you don't have the view, sometimes what happens is you need to have the drivers properly set up for PostgreSQL."
 

Pricing and Cost Advice

"It is a public domain system as every customer can install it on their system without paying any license fee."
"The most valuable feature of the solution is that it is freely available."
"The tool is open source."
"There is no licensing cost for this solution, as it is open-source."
"Firebird SQL is an open-source solution, which means it is a free product."
"We are using the free solution, so there is no cost involved."
"It's open-source and free."
"There is a yearly maintenance fee for the use of the solution."
"It is open source. There is no licensing."
"The tool is cheaply priced compared to other RDBMS providers in the market."
"We are using the free version of PostgreSQL."
"We use the open-source version of PostgreSQL and not the enterprise edition."
"It is also open-source so it is free."
"It is free. In terms of operating costs, it basically needs the same platform on which Oracle runs."
"The solution requires a license."
"It is free, but if you need support, you can go for the commercial version called EnterpriseDB. They provide paid support, and they can even do hosting for you if you want standby and support."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
Manufacturing Company
9%
Financial Services Firm
9%
Computer Software Company
13%
Financial Services Firm
11%
Comms Service Provider
9%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise3
By reviewers
Company SizeCount
Small Business57
Midsize Enterprise26
Large Enterprise46
 

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 Firebird SQL?
Firebird SQL is an open-source solution.
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 needs improvement with PostgreSQL?
Postgres should focus on building a stronger knowledge base. They also need to expand their integration capabilities, so more tools and resources are available to manage it. But it is more secure t...
 

Comparisons

 

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Find out what your peers are saying about Firebird SQL vs. PostgreSQL and other solutions. Updated: February 2026.
881,707 professionals have used our research since 2012.