
Launch instantly in your browser
No complicated setup required. Both learning and using our tools happen entirely in your browser, so you can start right away without spending time on prep.

A browser-based portal that supports engineers in their learning and daily work
We offer AWS and other cloud certification prep content — practice questions and key-point summaries. Clear, illustrated diagrams help you build a solid understanding of tricky cloud concepts, even as a beginner.
We provide tools for IT engineers that run right in your browser — no installation required.
Learn essential engineer skills like Python, AI, Linux, and SQL. Each page includes a browser-based runtime, so you can run code hands-on and build practical skills efficiently.

No complicated setup required. Both learning and using our tools happen entirely in your browser, so you can start right away without spending time on prep.

Even tricky AWS infrastructure concepts become clear with easy-to-follow diagrams. Learn cloud fundamentals that trip up almost everyone, without the frustration.

Try things out right in your browser and build a solid understanding of complex programming concepts as you go.

Review the exam details for CLF, SAA, DVA, and others — including target audience, exam domains, and what you'll need to learn.
Get a clear picture of exam domains and question areas, then plan your study priorities and identify any knowledge gaps.
Work through practice questions organized by domain, in an exam-style format that lets you check your understanding and how well the knowledge has stuck.
Focus on the questions you got wrong and review the essentials with illustrated key-point explanations, closing gaps to boost your chances of passing.
A curated selection of popular browser tools for development and learning. Open a wide variety of tools instantly, organized by language and purpose.