Learn to code in any language, right in your browser.
CodeNest is a free online IDE for learners: write code, run it instantly in a sandbox, follow bite-sized courses, solve auto-judged problems and share your work with a link.
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- courses
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- practice problems
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Instant playground
A real editor (Monaco, the engine behind VS Code) with syntax highlighting and stdin. Python, JavaScript, TypeScript and SQL run right in your browser — no server round-trip.
Explore →Guided courses
Short lessons with explanations, videos and an embedded editor so you learn by doing, not just reading.
Explore →Practice problems
Solve challenges in any language. Your solution is judged automatically against sample and hidden tests.
Explore →Save & share
Create a free account to save snippets, track course progress and share code with a single link.
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