Systems | Development | Analytics | API | Testing

15 Best Automated API Testing Tools (Compared for 2026)

The number of API testing tools on the market for you and your team to try out and select will probably take forever. Here are several key considerations to keep in mind when choosing one: Smart Summary Our comprehensive analysis of automated API testing tools provides crucial insights for teams aiming to optimize their development workflows.

User Acceptance Testing vs Regression Testing: Key Differences and When to Use Each

Regression testing is a technical validation performed by QA teams to ensure that code changes haven't broken existing functionality. It asks the question: "Did we break anything that previously worked?" Regression tests run continuously throughout development, often automated within CI/CD pipelines, protecting the application's stability as it evolves. User Acceptance Testing (UAT), on the other hand, is a business validation performed by actual users or stakeholders. It asks.

What's the value of professional services not just for customers, but also internally across teams?

Professional services not only accelerates customer onboarding but also strengthens internal collaboration by sharing success criteria, tracking KPIs, surfacing product feedback, and ensuring a smooth handoff to CSM and support. This creates transparency across teams and helps customers, and Katalon, in continuous improvement and growth. — Mush Honda, Chief Quality Architect at Katalon Follow Katalon for more insights in our series!

Best Automated Mobile Testing Tools in 2026 (Top 10 Compared)

When choosing a mobile testing tool, consider: It's about choosing the mobile testing tool that fits. If you're still in consideration stage, we've got you covered. Here is a list of the best automated mobile testing tools and frameworks out there for you to try, with pros and cons listed to help you make informed decisions. Smart Summary Navigating the landscape of automated mobile testing tools requires aligning capabilities with team expertise and project requirements.

How should customers perceive Katalon today compared to five years ago?

Katalon has grown from a standalone test automation tool into a full end-to-end quality platform covering authoring, execution, reporting, analytics, and even production monitoring. And unlike 5 years ago, it now leads the way in AI for software testing — providing the natural counterpart to the rapid rise of AI in software development. — Daisy Hoang, SVP Revenue at Katalon Follow Katalon for more insights in our series!

Low-Code Software Testing: How to Get Your Org on Board

Every business wants to mature rapidly. For software testing and QA professionals, terms such as low-code application testing, codeless tools, and automation will definitely ring a bell. From a market perspective, a product perspective, and especially a tech stack perspective, ensuring quality is critical in software development.

From Buggy Beginnings to AI-Powered Quality with Cristiano Caetano

Recently, I had the pleasure of sitting down with Cristiano Caetano, VP of Product at Katalon, to explore his journey in software testing. It was a path that began with frustration, evolved through innovation, and now looks toward an exciting AI-driven future. Cristiano's insights shed light not only on his personal career path but also on the broader evolution and future of software testing.

How did Katalon work with the customer, and what did success look like?

Katalon worked closely with the customer to set clear success metrics, benchmark their starting point, and build a roadmap to boost automation, reduce defects, and speed up releases. The outcome: far fewer weekend emergencies for the VP, major gains in automation coverage and quality, and a QA team that’s now more mature, and even adopting AI in their testing. — Daisy Hoang, SVP Revenue at Katalon Follow Katalon for more insights in our series!

What challenges was the customer facing before Katalon, and how were they testing then?

They struggled with constant production bugs, poor quality, and low automation, so much so that the VP of Engineering couldn’t unplug on weekends for fear the website might break. With only ~20% automation and frequent releases across web, mobile, and APIs, they lacked the coverage and resilience needed to prevent defects from leaking into production. — Daisy Hoang, SVP Revenue at Katalon Follow Katalon for more insights in our series!