6 of the Best Regression Testing Tools in 2025

Is manual regression testing anyone's favorite part of being a software engineer in the year 2025?

Let's be honest. Probably not.

Good news: you can more or less remove this burden from your team entirely, thanks to how advanced today's AI testing solutions have become.

With AI regression testing tools, your engineers save hours of repetitive work rerunning the same pre-change tests over and over again, and reinvest that time in the parts of the job that they truly enjoy. At the same time, your AI testing tools allow you to test more, test faster, and test more accurately, minimizing the potential for human error.

Looking to implement an innovative and reliable regression testing solution that helps you reap these benefits? Here are our top six picks to start you off.

What is Regression Testing, and Why is it So Important?

Regression testing is the process of running both functional and non functional tests again after a code change, such as a bug fix, or feature update.

Regression tests make sure that code changes do not introduce any unforeseen errors that negatively affect how your app performs. This helps you to continue to offer a positive experience to users after updates, reducing churn and increasing customer lifespan.

1. Best AI Regression Testing Tool: Momentic

The secret ingredient that makes Momentic such a powerful regression testing tool?

Simplicity. It's all about massively expanding your regression testing capacity and coverage, with minimal input from you. No steep learning curves, no overly-complex configuration or setup - so easy to use that “junior devs can pick it up on their first day”, according to one of our clients.

Momentic's focus on natural language processing means coding is kept at a minimum. Build scripts by describing, in plain English, what you want to test, and let the AI do its thing. The AI adapts to your application and gets smarter the more you test - so you save even more time in the long run.

Our tests aren't affected by changes in the DOM, making them significantly more reliable than other platforms'. You'll also have the flexibility to run tests wherever and whenever you want to - in the cloud, locally, in CI/CD pipelines, or behind private networks.

Finally, our range of out-of-box integrations mean that Momentic can fit with your existing workflows seamlessly. Our platform is plug and play with all CI providers, TestRails, Zephyr, Qase, Jira and many more - so you're ready to run tests as soon as possible.

2. Best Open Source Pick: Cerberus

Cerberus isn't the only open source regression testing tool out there - but it's definitely one of the most impressive low-code options.

Cerberus supports web, mobile, API (REST and Kafka), desktop, and database testing, and runs in the cloud. Users can access a range of features, including a low-code test library, reusable test modules, components, and data, strong test analytics, and continuous testing capability with CI/CD capabilities.

You can access all of these features free of charge when hosting on your own infrastructure, making Cerberus one of the best value automated regression testing tools around. The Cerberus community is expanding as the tool gains popularity (particularly among SMEs) for exactly this reason.

One thing to bear in mind: Cerberus will require a little more effort than AI-focused tools. To get it free, you'll need to set it up yourself on your own infrastructure (paid for SaaS plans also available), the platform won't automatically fix your flaky tests, and whilst the test editor is low code, you'll need to build your own tests from pre-made components rather than typing instructions in plain English.

3. For Visual Testing: TestGrid

TestGrid is a powerful, AI-enabled testing solution that offers codeless, natural language script creation, cross-browser and device testing, and a strong analytics offering.

For us, TestGrid's standout feature is their visual regression testing tool, which captures changes in the user interface and allows your team to find and fix accidental UI glitches and errors after code changes. When the AI runs regression tests, it automatically generates a visual testing comparison with baseline and subsequent tests.

We also like the platform's real-time monitoring features, which are really useful for teams looking to decrease response time and accelerate the overall development cycle.

It's an immensely powerful tool, which will suit larger organizations with extensive continuous testing requirements perfectly. Smaller teams might find the range of features TestGrid offers overwhelming - and the price point means you really won't want to be paying for features you won't use. There's a freemium version, but this offers limited access to automated tools.

4. For Agility: BugBug

For smaller teams that need a low-code, intuitive regression testing tool with great reporting features, BugBug is a strong choice. There's plenty to like about the price point too, with extensive features and unlimited cloud test runs for a fixed price per month.

BugBug's interface integrates directly within a web browser, which speeds up both regression testing and real-time interaction recording significantly. Users can record actions on web pages - including complex ones like hovers and clicks

• without writing a single line of code.

BugBug also offers a few handy test management features, including the ability to resume tests at any point, and manually tweak steps after a test has been recorded.

Complex test scenarios are a struggle for BugBug, and the tool's low-code approach falls off as soon as you want to customize your tests (you'll need JavaScript) - but for an agile find and fix tool, BugBug works perfectly.

5. For Salesforce Developers: Tricentis Testim

Salesforce offers a range of tools that allow developers to build both code-first and low-code solutions on the platform. However, there are few AI testing tools that cater to them.

Testim stands out in this regard - as well as offering automated regression testing across web, app, and mobile, the platform also offers a suite of AI testing tools specially designed for use with Salesforce. Optimized for Salesforce Lightning, Testim offers pre-built test steps for common Salesforce operations, locators powered by Salesforce metadata, and codeless steps for complex Salesforce operations such as permissions testing and document validation.

Users can record web, mobile, and Salesforce tests whilst clicking through their application, and make adjustments using custom code if needed. Testim's AI copilot helps users speed up test creation, find errors in existing code, and fix issues - whilst self-healing tests drastically reduce time spent on test maintenance.

6. For an Established Developer Community: Selenium

Selenium? In 2025? Surely it's a bit old school nowadays…?

We agree. Whilst powerful and reliable, Selenium is slow. It doesn't have the AI capabilities many of the other regression tools on this list have, and whilst it will save your engineers time via automating regression tests, it's much higher effort than most other entries on this list.

However, we've included it for three key reasons:

1. You won't have any issues finding people who know how to use it
2. There's a huge Selenium community for troubleshooting purposes
3. It's open source, so can be downloaded for free

This is going to make it hugely attractive to many. If you're running on limited working capital and a small workforce, you'll need a regression testing tool that's low cost, that potential hires will know how to use already, and that is extensively documented for troubleshooting purposes.

Selenium is all of these whilst offering a good amount of flexibility, thanks to cross-browser functionality and support for a wide range of scripting languages (Java, Python, C#, Ruby, JavaScript).

Momentic: Your New AI Regression Testing Tool?

"Momentic makes it 3x faster for our team to write and maintain end to end tests."
Alex Cui, CTO, GPTZero

We'd love to see if Momentic's AI testing tools could help you optimize your software testing life cycle.

If, like Alex and his team, you're keen to save over two thirds of the time you spend on key testing processes, why not schedule a conversation with our founder?