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Build domain-specific languages with a projectional editor, language tools, and code generators.

AI language tutor for speaking practice and pronunciation feedback.

AI language tutor for speaking, listening, writing, and pronunciation practice in 130+ languages.

A language-course library with personal and institutional access routes.

Donation-supported language materials without registration.

Build web pages and command-line programs with a general-purpose scripting language and interpreter.

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

Explore data and create statistical summaries and graphics in R's language environment.

Use a compact scripting language on its own or embed its interpreter through a documented C API.

Explore an interpreted object-oriented language for web applications, scripts, and text-processing tasks.

Build type-safe concurrent programs for the Erlang virtual machine or compile them to JavaScript.

AI speaking practice for English and 35+ languages

Language courses with speaking practice and community exchange.

Practice with partners who are learning your language.

Work-related courses with role guides and learning pathways.

Vyoma's structured Sanskrit learning programmes.

Personalised early learning with reading, maths, thinking, creative and social-learning activities.

Study macroeconomics, public finance and economic policy

A free collection of digital books and maths learning resources with language and theme browsing.

Arabic lessons with a language-of-media route.

English-learning series organized by level and topic.

An interactive deep-learning book joining code and mathematics

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

Build apps, command-line tools, and services with Swift's compiled programming language.