Run Code Block — VS Code Extension

Run any code block with a single click. Works in source files and Markdown fenced code blocks.

Install

npm install
npm install -g @vscode/vsce
vsce package
code --install-extension run-code-block-*.vsix
# code --uninstall-extension reecepbcups.run-code-block

Features

▶ Run buttons appear above every code block via CodeLens — just click to execute
Keyboard shortcut Ctrl+Shift+R (Cmd+Shift+R on Mac) runs the block at your cursor
Markdown support — detects fenced code blocks (```python ... ```) and runs them with the right interpreter
Source file support — offers "Run Entire File" plus individual sections separated by double blank lines
14 languages supported out of the box: JavaScript, TypeScript, Python, Bash, Ruby, Go, Rust, Java, C, C++, PHP, Perl, Lua, R
Custom runners — override the run command for any language in settings
Reusable terminal — runs all output in a single terminal to avoid clutter

Usage

In Markdown files

Any fenced code block with a language tag gets a ▶ button:

```python
print("Hello, world!")
```

In source files

A ▶ Run Entire File button appears at the top
Sections separated by two or more blank lines get individual ▶ buttons

Keyboard shortcut

Place your cursor inside a code block and press Ctrl+Shift+R / Cmd+Shift+R.

Settings

Setting	Default	Description
`runCodeBlock.showCodeLens`	`true`	Show ▶ Run buttons above code blocks
`runCodeBlock.reuseTerminal`	`true`	Reuse the same terminal for all runs
`runCodeBlock.customRunners`	`{}`	Override run commands per language (see below)

Custom Runners

Add to your settings.json:

{
  "runCodeBlock.customRunners": {
    "python": "python3.11 \"{file}\"",
    "javascript": "bun \"{file}\""
  }
}

Use {file} as a placeholder for the temporary file path.

Requirements

You need the relevant language runtime installed on your system (e.g., node, python3, go, gcc, etc.).

Run Code Block

Reecepbcups