Visual Studio Code — The Industry-Standard Code Editor

What VS Code Does

• IntelliSense — smart completions with type info
• Debugging — launch and debug Node, Python, Go, C++, etc.
• Git integration — inline diff, stage, commit, push
• Extensions — 60,000+ on marketplace
• Integrated terminal — shell inside editor
• Multi-cursor — Ctrl+D to add cursor to next match
• Live Share — real-time pair programming
• Remote development — SSH, containers, WSL, Codespaces
• Jupyter notebooks — built-in support
• Task runners — define tasks.json for project commands
• Workspace settings — per-project and user config

Architecture

Electron shell + Monaco editor (the web-based component also used in monaco-editor). Language features delegated to Language Servers via the Language Server Protocol (LSP, originally invented for VS Code). Extensions run in a separate Extension Host process for isolation.

Self-Hosting

The source code at microsoft/vscode is MIT-licensed, but the branded "Visual Studio Code" binary includes proprietary telemetry and the Microsoft Marketplace. Open-source builds:

• VSCodium — no telemetry, community build
• Code - OSS — the raw open-source build
• Cursor — AI-first VS Code fork
• Windsurf — another AI-first fork

Key Features

• Free and open source (core)
• Cross-platform
• Extensive marketplace
• LSP-based language features
• Integrated Git, terminal, debugger
• Remote development (SSH, containers, WSL)
• Live Share
• Profiles (per-language setups)
• Jupyter notebook support
• Settings Sync

Comparison

FAQ

Q: What is the difference between VS Code and VS Codium? A: VS Codium is a rebuild of Microsoft's VS Code source with branding and telemetry removed. Functionally identical with better privacy, but it cannot use the MS Marketplace (switch to the Open VSX Registry).

Q: What Remote Development options exist? A: Remote - SSH (remote server), Dev Containers (Docker containers), WSL (Windows Subsystem for Linux), and Codespaces (hosted). The editor runs locally while the language server and files stay remote.

Q: Compared to JetBrains? A: VS Code starts fast, is free, has many extensions, and is language-agnostic; JetBrains goes deeper for specific languages (Java/Kotlin/Go/Rust) and has smarter refactoring.

Sources

• Docs: https://code.visualstudio.com/docs
• GitHub: https://github.com/microsoft/vscode
• License: MIT