Xceptance Test Center
SaaS for Performance Testing and Monitoring
XTC is our commercial software-as-a-service offering that seamlessly integrates our testing tools under a single roof. This all-in-one solution lets you manage, configure, control, and evaluate load and performance tests, monitoring, and test automation for web applications or APIs from the cloud. For example, you can continue to use XLT load tests and enjoy the added level of control and convenience.
Monitoring
Monitoring-as-Code
Use monitoring to continuously check the response time behavior and functionality of your web application, using browser-based test automation. You can be notified if flexibly configurable threshold values are exceeded. XTC will also provide you an overview of the performance and availability of your application over time, providing detailed data and valuable insights.
Load Testing
Convenient SaaS-based Load Testing
Manage your load test projects via a convenient, cloud-based user interface. Set up, configure, schedule, and run load tests, evaluate load test runs and share the results.
Test Automation
Centralized Automation Reporting
Manage, control and evaluate your automated tests with XTC. Check the test execution statistics. Use the detailed reports that inform you about each executed test step to quickly narrow down the cause of failed test cases.
This is an upcoming feature.
Xceptance LoadTest
Extensive, Flexible, Proven, Scalable
XLT is our open-source load test tool for software engineering. It offers flexible and realistic testing of application performance under load. It runs on the JVM, supports load testing as code, collects data in open formats, provides detailed and clear reports, and makes load tests debuggable.
Performance Test As Code
Maximal Versatility with Java
Several different ways of composing tests allow you to choose the best way to complete a given task. 'Record & Replay' mainly suits simple scenarios and basic URLs. The power comes with Java as the scripting language, because it lets you write realistic and flexible tests. Your imagination is the limit.
Best Reporting
Detailed Reports By Default
The Result Browser provides instant feedback on the test scenario while designing it. When load testing, the Result Browser will give you all the information you need to diagnose a problem in detail. The detailed load test report provides comprehensive measurement results at various levels, from user transactions and user actions to all individual kinds of HTTP requests.
Scale It Up
Fully Scalable
You can deploy XLT to any number of machines, with any number of test scenarios, and any number of load profile setups. The rich reports with the opportunity to time-slice them and to group requests will highlight problems in an instant.
Proven Open Source Automation — Evolving for the AI Era
Neodymium combines best-in-class open-source tools (JUnit, Selenide, Allure) into a project-ready testing framework. It simplifies framework setup, handles multi-browser execution out of the box, and includes built-in test data management. We are now expanding Neodymium with AI-driven capabilities—bringing natural language test playbooks, self-healing locators, and automated AI diagnostics into your automation pipeline.
Proven Tool Stack
JUnit, Selenide & Allure
Combines industry-standard open-source libraries into a clean, project-hardened engine with built-in BDD/Cucumber support and instant reporting.
Enterprise Utilities
Reporting, Multi-Browser & Data
Includes out-of-the-box Allure reporting, multi-browser parallel execution, data-driven test providers, video recording, secret masking, and automated Lighthouse performance audits.
Instant Setup
Ready-to-Use Templates
Pre-configured starter templates and showcase repositories so teams can start writing tests immediately instead of building infrastructure.
Natural Language Playbooks
Plain Language Test Execution
We are adding natural language playbook execution—allowing tests to be written in plain human language, which AI interprets and translates into concrete browser actions.
Fast Replay & AI Diagnostics
Offline Execution & Visual RCA
Recorded companion playbooks execute offline in milliseconds without recurring LLM costs, while AI-powered Root Cause Analysis diagnoses unexpected test failures.
Self-Healing Tests
Less Maintenance & High Resilience
Tests automatically adapt when application UIs change. AI dynamically repairs broken element locators and layout shifts, dramatically reducing test maintenance.