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IELTS mock tests, skill practice and coaching options, including automated speaking practice.

The UCAT consortium's preparation collection with tutorials, practice tests, workshops and planning resources.

AI interview practice and hiring tools for candidates, companies, and colleges

ETS's TOEFL preparation route with TestReady practice, progress information and a study planner.

State-specific US permit-test preparation with practice questions and narrated video lessons.

Host a browser speed test with configurable telemetry

Offers client appointments through a practice calendar.

Generated practice sessions with adjustable time, level and focus

IT certification practice tests and assessments searchable by vendor, product type and role.

Inject controlled failures into services and infrastructure to test reliability and recovery behavior.

A GMAT study community with question banks, practice tests, an error log and study-planning tools.

Write JavaScript load tests and run them locally or send performance tests to Grafana Cloud.

A Java testing library that starts disposable Dockerized dependencies for integration tests.

Record, replay, and inspect UI tests for desktop, web, and mobile applications.

A visual testing service that compares screenshots and other snapshots from CI builds against a selected baseline.

Run gray-box end-to-end tests against React Native apps on iOS and Android.

Run cloud performance tests for web applications and APIs from scripts you supply.

Test email and SMS workflows by routing app-generated messages to controllable inboxes and numbers.

Drive a chosen rate of HTTP requests and turn response samples into load-test reports.

Model Kubernetes builds, deployments, tests, and local development as a dependency-aware action graph.

A Go library for verifying infrastructure code by deploying it, checking behavior, and cleaning up resources.

Model performance scenarios for applications and APIs, generate virtual-user load and analyze run results.

A Java code-coverage library that records which instructions, lines, and branches run during tests.

A Java-based load-testing application for exercising services and analyzing their performance under simulated traffic.