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Edit, run and share short Kotlin examples in a browser without first creating a full project.

Create a cloud development environment for a repository and edit it in a browser-based VS Code workspace.

A browser editor for creating, sharing and remixing p5.js sketches without local setup.

ST's C/C++ development environment for building and debugging STM32 firmware on desktop or VS Code workflows.

Define metrics and dashboards in a versioned project shared by visual and code tools.

An AWS service emulator for local development and integration testing in CI.

Write analytical reports with SQL, Markdown and components in a code repository.

Automate unit and regression testing for embedded C/C++ software, from test design to target execution and coverage analysis.

Format source files with a consistent, opinionated printer that supports common web and configuration languages.

A curriculum centered on React applications and Node APIs

A self-paced coding curriculum with interactive challenges

A detective story solved by querying a database

Browser-based screenshot editor for mockups, code images, and marketing visuals.

Prepare screenshot, code and app-showcase graphics in one visual editor.

AI agents that review and test pull requests with full context of the codebase.

AI workflow builder that turns prompts into flows, APIs and automations with full code access.

A detailed written introduction to modern C++

Coding paths with backend, DevOps and data projects

Community coding kata with tests and solution comparisons

Interactive coding lessons leading into projects

A searchable library of coding videos and workshops

Focused Python challenges with detailed solution study

SQL exercises running against SQLite in the browser

Frontend and full-stack practice through project challenges