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A programming-problem collection with community discussion

Project-oriented coding courses across technical subjects

Programming explanations alongside algorithm practice

A topic-organized collection of programming tutorials

A browser IDE for programming courses, with Linux project environments and an integrated terminal.

A project-oriented programming editor, code browser, and analyzer for navigating source.

A Java IDE that lets learners explore classes and objects while writing code.

Edit code on iPhone or iPad with broad syntax highlighting, remote file access, and an SSH terminal.

A reactive Python notebook editor that saves notebooks as ordinary Python files.

Write statically typed Nim programs and compile them with a toolchain designed for systems and application work.

A browser IDE for running short code samples or building supported multi-file projects across many languages.

Compile systems software with a general-purpose language built around explicit control and cross-compilation.

Write visual sketches in a desktop editor and run them in a graphics window with Processing.

Compile Ruby-inspired, statically typed Crystal programs into native executables.

A language, runtime, and library platform for concurrent, fault-tolerant applications.

Preview and deploy infrastructure changes through the same CI workflow as application code.

Create compiled programs and reusable modules with Go's language and standard toolchain.

A graphical environment for building measurement, instrument-control, and test applications with the G language.

Add static type checking and compiler configuration to a JavaScript project.

Build JVM and multiplatform applications with an open-source language and compiler toolchain.

Community coding kata with tests and solution comparisons

Interactive coding lessons leading into projects

A searchable library of coding videos and workshops

A step-by-step guide to fragment-shader programming