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A terminal-native editor built around multiple selections, syntax-aware navigation, and language-server features.

A programming book with language lessons and projects

Teach visually with shared whiteboard pages, document presentation, and breakout-room collaboration.

A browser-based shared math canvas for handwriting, graphs, sliders, and PDF assignments.

A beginner-focused Python IDE that makes variables and program execution visible while you learn.

Teach with an infinite, persistent whiteboard integrated into a virtual classroom.

Share a collaborative whiteboard URL and work across unlimited pages with live audio, video, and document annotation.

Sketch and teach together on a browser-based infinite whiteboard.

An online whiteboard and tutoring workspace with live drawing, chat, and media for teaching sessions.

Online courses, vocabulary review and live conversation.

Test language support through shaping behavior as well as character coverage.

An interactive programming language for technical and numerical computing.

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

Vocabulary learning with games and multiplayer competition.

Write programmable configuration with validation and generate JSON, YAML, and other output formats.

A source and web editor with built-in HTML preview, file tools and language-server support.

A video course and resource library for visual interface design

Structured French cooking courses for home kitchens

Share a live board with sticky notes, drawing tools, images, and imported or exported PDFs.

Turn a concise text description into a customizable diagram with the D2 language.

Camera-guided tracing onto physical paper

Earth-science images with descriptions and download sizes

AI language tutor for conversation practice in 30+ languages

A meeting-mode whiteboard for teachers, with a free meeting limit and a paid whiteboard-only plan.