Nifty Launch

Add debug configurations for what's in your project (npm scripts, tests, Python, Django, FastAPI, Go, .NET, Rust, browsers), build compounds, and catch broken launch.json references.

Maintained. No sign-in. No telemetry. Works in VS Code, Cursor, Windsurf, VSCodium and other editors that use Open VSX.

Features

• Add the configurations your project needs. Add Detected Launch Configurations… looks at your project and offers ready-made entries. Tick the ones you want and they're added to .vscode/launch.json (created if needed), keeping your comments and formatting:
  • Node.js: every package.json script, run with npm, pnpm, yarn or bun to match your lockfile, plus sub-packages in apps/* and packages/*, the main file, and attaching on port 9229
  • Tests: Vitest, Jest, pytest, Go tests and Rust tests for the current file or package
  • Browsers: Chrome and Edge on your dev server's port (Vite, Next.js, Angular, Astro, SvelteKit, Nuxt, CRA)
  • Python: the current file, Django runserver, FastAPI through uvicorn, Flask, and attaching with debugpy
  • Go: each main package
  • .NET: each app or web project, with the dotnet build task it needs added to tasks.json, and the browser opened when ASP.NET Core is listening
  • Rust: each binary, through CodeLLDB
  • Deno
• Debug without touching launch.json. Debug Something… lists your configurations and everything detected; pick one and it starts.
• Compounds in two clicks. Pick the configurations to start together (say, the API and the browser), name it, done. stopAll is on, so stopping one stops the rest.
• Catch broken launch.json. Problems show up as you type:
  • preLaunchTask/postDebugTask that isn't in tasks.json
  • compounds naming a configuration that doesn't exist
  • ${input:x} with no matching input (quick fix: add it)
  • duplicate names
  • program, cwd or envFile pointing at a file that isn't there
  • old debug types like pwa-node or python (quick fix: change it)
  • debug types that no installed extension provides, naming the extension you need
• If a configuration needs a debugger you don't have (debugpy, Go, C#, CodeLLDB), you're offered the extension to install.
• Works in the browser on vscode.dev and github.dev for adding, combining and checking configurations; Debug Something… needs the desktop app.

Commands

Settings

Install

• VS Code: search for "Nifty Launch" in the Extensions view, or install from the Visual Studio Marketplace.
• Cursor, Windsurf, VSCodium, Kiro, Antigravity: install from Open VSX.

Privacy

This extension collects no telemetry and needs no account.

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See all 35 Nifty tools at https://getnifty.dev