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An exam-based study library with practice tests, flashcards and study guides.

PMI's PMP preparation subscription with refreshers, practice questions, mock tests and progress tracking.

Analyze qualitative and mixed-methods material with coding, speaker comparisons and visual outputs.

Design geographic marketing experiments and analyze lift against control markets.

A project-based IDE for writing and running R-centered data work, with support for Python scripts and documents.

Combine network flow, device, cloud, and synthetic telemetry to investigate traffic and service performance.

Run manual and automated mobile-app tests against selected cloud or team-managed devices.

Invisible AI interview assistant with real-time help for live interviews and coding tests.

Taiwanese statistical indicators and release resources

Kenyan statistics, surveys and census resources

Senegalese statistics with reports and data resources

A Python property-based testing library that generates inputs to challenge the properties your code should preserve.

A local API-mocking desktop app and CLI for replacing live services during development and tests.

A command-line tool for sending HTTP requests and asserting the responses as repeatable tests.

Build Python web applications by pairing a small request-and-route core with the extensions your project needs.

A proxy-based API simulator that records traffic for repeatable tests without calling the real service each time.

A PHP testing framework for unit tests, assertions, exceptions, and other application behavior.

Automates Kubernetes canary and blue-green rollouts using traffic analysis and validation checks.

Measure how well JavaScript and TypeScript tests detect deliberately introduced code changes.

Check website and server availability from external locations and alert a team when a test fails.

Run repository builds, tests, and release steps in workflows defined by CircleCI configuration.

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

Write and run JavaScript end-to-end tests across local browsers and remote grids.

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