Tree — Run Code Instantly

One extension. Eight languages. Zero setup.

Tree lets you write and run C, C++, Python, JavaScript, TypeScript, Java, Go, and Rust directly in VS Code — no compiler installation, no PATH configuration, no environment setup. Just install Tree and start coding.

Why Tree?

Every other extension requires you to install compilers yourself:

• Microsoft's C/C++ extension says "You will need to install a C++ compiler yourself"
• Code Runner requires GCC, Python, Node.js, and JDK to already be on your system
• Java extensions require you to set JAVA_HOME and point to a JDK

Tree does all of that for you — automatically.

How it works

Tree ships as a tiny extension (under 25 KB). The first time you run a file in a given language, Tree silently downloads the required compiler or runtime, extracts it to a private folder, and runs your code. Your system is completely untouched — no PATH changes, no admin rights needed.

After the first run, everything works fully offline — forever.

Each runtime is downloaded only when you first run that language. If you only write Python, you never download GCC.

Usage

1. Open any .c, .cpp, .py, .js, .ts, .java, .go, or .rs file
2. Press F5 or click ▶ Run in the status bar
3. Program runs in an integrated terminal — type input naturally when prompted
4. Press Shift+F5 or click ⏹ Stop to kill a running program

Features

• ✅ One-click run — F5 or ▶ Run button
• ✅ Supports C, C++, Python, JavaScript, TypeScript, Java, Go, Rust
• ✅ Real terminal — type input freely at any point during execution
• ✅ Zero setup — no compiler or runtime installation needed
• ✅ No PATH configuration required
• ✅ Fully offline after first-time runtime download
• ✅ Execution time shown after every run
• ✅ Run button shows spinner while running, resets when done
• ✅ Stop running program anytime (Shift+F5)
• ✅ Auto-detects language from file type
• ✅ matplotlib graphs open automatically inside VS Code
• ✅ Missing Python packages auto-detected and installed with one click
• ✅ Tree: Install Python Package command for manual pip installs
• ✅ Compiled binaries (.exe, .class) cleaned up after each run
• ✅ Download progress shown with speed and ETA
• ✅ TypeScript runs via Node.js 22 built-in type stripping — no tsc needed
• ✅ Windows support (Linux/macOS coming in a future release)

Python & matplotlib

Tree includes full pip support. When your code imports a missing package, Tree detects it and offers to install it automatically — then re-runs your file.

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [1, 4, 9, 16, 25]
plt.plot(x, y)
plt.title("My Graph")
plt.show()  # opens as an image inside VS Code automatically

plt.show() is intercepted — the chart saves as PNG and opens beside your editor. No popup windows needed.

Manual install: Ctrl+Shift+P → Tree: Install Python Package → type package name

Input

Programs run in a real terminal. When your program asks for input, just type and press Enter — exactly like running in a normal terminal.

// This just works — type when prompted
scanf("%d", &n);

# This just works — type when prompted  
name = input("Enter your name: ")

Requirements

• VS Code 1.125.0 or higher
• Windows (Linux/macOS support coming soon)
• Internet connection on first run of each language (for runtime download)
• No other requirements

Commands

Release Notes

0.2.0

• Added Go and Rust support
• Switched to real terminal — interactive input works naturally
• Execution time shown after every run
• matplotlib plots auto-open beside editor
• Download progress shown in output panel with speed and ETA
• Stop button now correctly kills the running program
• TypeScript warning suppressed

0.1.0

Initial release — C, C++, Python, JavaScript, TypeScript, Java with auto runtime download, matplotlib support, auto pip install, and fully offline operation.