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9 languages
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Learn QA through practice
Build testing skills that survive real projects.
A focused learning path for people entering QA and engineers who want stronger automation, tooling, and delivery habits.
Learn at your pace. Practise on realistic tasks. Keep your progress.
Protected bonus lessonThe interview masterclass unlocked by complete QA practice.See the bonus mission13 deep chapters · 14-day interview sprint
Corgi QA Lab
Learn to investigate, not just click.
Practice-first
Tasks model real product work
Career-ready path
Build evidence from foundations to interview practice
Built-in checks
Quizzes show what to revisit next
Protected bonus lesson
13 deep chapters
Manual · Automation · Performance
14-day interview sprint
Final Corgi mission
The interview masterclass unlocked by complete QA practice.
Thirteen chapters, three career paths, live-task drills, take-home strategy, recruiter scripts, lead and CTO conversations, and safe AI coaching. Finish every published course and current quiz, or activate access with a bonus code.
See the bonus missionNine interface languages
Choose your interface language.
This choice changes menus, account pages and learning tools. Course lessons have their own language setting, explained below.
Languages of lessons and quizzes
2 complete course versions
This card describes the learning content, not the website interface. Every reviewed lesson and quiz has a complete English and Ukrainian version. Other interface languages open the English course version.
Learning directions
Start with the skill your next role needs.
Each direction brings together concise theory, structured examples, and knowledge checks you can complete at your own pace.
0121 learning sessions
Manual Software Testing: Foundations
A foundational course for aspiring and practicing QA engineers. Learn test-design techniques, positive and negative scenarios, test documentation, clear bug reports, and collaborative testing through practical assignments.
Full course · free
0220 learning sessions
Performance Engineering: JMeter, k6 and System Diagnosis
From measurement fundamentals to an independent performance investigation: JMeter and k6, JVM and garbage collection, CPU, databases, pools and queues, Prometheus, Grafana, logs, tracing and profiling. Beginner explanations, diagrams, local laboratories, quizzes and an evidence-based capstone.
Full course · free
039 learning sessions
AI for QA and Test Automation
A practical foundation for QA work with AI: reviewing generated answers, testing AI features, and automation with Playwright/TypeScript, Selenide/Java, pytest/Playwright/Python, Cypress/TypeScript and WebdriverIO/TypeScript. Includes a shared local application, laboratory files, quizzes and a capstone.
Full course · free
0412 learning sessions
QA Management: Roles, Growth and Quality Leadership
Understand grades from Trainee to Senior, General QA/SDET specializations and Lead, Manager and Head of QA roles. Practice responsibility mapping, people development, planning, metrics and risk decisions through worked examples, diagrams, editable templates and quizzes.
Full course · free
0512 learning sessions
QA in a Development Team: From Task to Release
Everyday QA collaboration with developers, analysts and product: requirements, sprints, Scrum events, change verification, releases, defect escalation, incidents and difficult conversations. Step-by-step scenarios, example messages, practice, templates and quizzes.
Full course · free
0616 learning sessions
QA Engineer Toolset: From Request to Evidence
A practical course covering DevTools, Postman, SOAP/SoapUI, SQL clients, logs, Kibana, Prometheus, Grafana, Netdata, Kafka, proxy/network tools, BrowserStack/TestMu AI, Docker, CI, and OpenTelemetry.
Full course · free
0716 learning sessions
Security Testing: Authorized Web and API Assessment
A practical course from written scope, HTTP and TLS, and threat modeling through controlled testing of authentication, sessions, authorization, injection, browser and server boundaries, APIs, dependencies, and remediation.
Full course · free
0816 learning sessions
Database Testing: SQL, MongoDB, and JSON Stores
From SQL and transactions to MongoDB, JSONB, CouchDB, Couchbase, Redis, Elasticsearch, migrations, recovery, and evidence-based database QA.
Full course · free
0916 learning sessions
Data Formats for QA: APIs, Files, and Contracts
Practical validation of JSON, XML, YAML, CSV, HTML forms, streaming, binary schemas, analytical files, encodings, transformations, and format security.
Full course · free
1016 learning sessions
Google Search and Analytics for QA
A QA path through Search Console, indexing, Tag Manager, GA4 events, consent, ecommerce, Firebase Analytics, BigQuery, reporting, and measurement release evidence.
Full course · free
1117 learning sessions
Mobile Testing: Android, iOS, and App Quality
A complete mobile QA path through platforms, devices, lifecycle, installation, permissions, networks, storage, interruptions, links, push, security, performance, accessibility, tools, automation, and release.
Full course · free
1217 learning sessions
English for QA and IT Communication
Workplace English for requirements, test design, defects, API and database evidence, Git and CI, meetings, releases, incidents, interviews, and responsible AI-assisted writing.
Full course · free
1313 learning sessions
QA Foundation Workshops: From Requirement to Release
Hands-on completion workshops for boundary design, decision and state models, pairwise/use-case/cause-effect techniques, Git, command line, Docker, test management, accessibility, and an end-to-end junior QA capstone.
Full course · free
A clear learning loop
Learn, apply, check, repeat.
Progress stays visible, and knowledge checks help you decide what to revisit next.
- 01
Understand the concept
Short explanations establish the model and the vocabulary you actually need.
- 02
Use it on a task
Practice in a product-like context with a concrete, reviewable outcome.
- 03
Check your understanding
Use quizzes and your saved progress to spot gaps before moving forward.
Your Corgi QA pack
Collect a team that grows with your QA skills.
Each Corgi marks a real learning milestone: begin a course, build momentum, cross the halfway point, and complete the path.
- Start
Curious Scout
Join a course and choose the first skill you want to master.
- 25%
Defect Detective
Reach 25% by turning explanations into repeatable checks.
- 50%
QA Pathfinder
Reach 50% and connect risks, evidence, tools, and product decisions.
- 100%
Release Guardian
Complete a course and carry the full learning path into your own practice.
Corgi badges celebrate real learning progress. Every core lesson remains free; any future bonus missions will be announced separately.
Create an accountReady for the next step?
Turn scattered knowledge into a working QA system.
Open the catalog, choose a reviewed course, and start learning for free. Your account keeps your place between sessions.