Source Runner icon
Source Runner icon

Source Runner

Run scripts and JavaScript or TypeScript projects across 16 runtimes, with declared dependencies, automatic version provisioning and isolated caches. Includes package-manager support, IDE setup, global commands, builds, layered .env files and private package feeds.

Source Runner screenshot 1

Cost / License

  • Free Personal
  • Proprietary

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Platforms

  • Mac  Apple Silicon
  • Windows  x86_64
  • Linux  x86_64
  • Windows Command Prompt
Running the same script in Python, TypeScript and Go with one command, sr. Dependencies are declared inline, so there's no virtualenv, node_modules or go.mod.
The sr command's built-in help: run a script, run a package.json script, and build, edit, install and configure from one CLI.
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Source Runner was added to AlternativeTo by Jason Taylor on and this page was last updated . Source Runner is sometimes referred to as SR. 

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What is Source Runner?

Source Runner (sr) is a command-line utility that executes code across 16 runtimes without manual setup. It declares the runtime and dependencies within a comment block at the start of a file, allowing the sr command to install the correct runtime version and dependencies into a cache for each script. This removes the need for virtualenv, requirements.txt, and node_modules. Python scripts follow PEP 723 metadata standards, making them valid uv scripts.

For JavaScript or TypeScript projects, the sr dev or sr run <script> commands execute package.json scripts. Source Runner sets up Node or Bun and your project's package manager, avoiding reinstallation when no changes are made. Other features include editor setup, global command installation, and build production for native binaries or bundles in runtimes with a compiler or bundler. It supports .env layering and private package feeds.

Source Runner supports Node.js, Deno, Bun, Python, Ruby, Julia, Go, Haskell, Dart, Bash, Zsh, Fish, Nushell, Dash, PowerShell 7+ and Windows PowerShell 5.1. It is free for personal use, but commercial use requires a paid license. It is available for macOS, Linux, and Windows as a single command-line binary.