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Windows and Mac app · free and open source

Stackyard

Every SDK on your machine, which projects use it, and what's safe to remove.

Version managers install SDKs; nothing tells you that you have six Flutter versions, three Android NDKs and a 13 GB emulator you haven't opened in a year. Stackyard scans your machine and your projects, shows what each version is used by, explains every problem in plain words with a button that fixes it, and frees the space you don't need. Free and open source.

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v1.0.2 · Windows 10 or 11, or macOS 12 or later · free and open source

Stackyard Overview: 14.1 GB you can free, a bar of space used by Xcode, Android SDK, Flutter, Java, Node.js and Python, a project that needs Flutter 3.19.6 with an Install button, and quick wins to clean up
The Overview: what you can free, what needs attention, and the quick wins.Sample machine

In motion

Watch it work

Short loops of the real Stackyard on a sample machine, showing how each part behaves.

  • One scan, everything at once

    Stackyard finds every SDK, toolchain and framework version on your machine and the projects that use them, then shows what you can free.

  • Problems come with a fix

    A project pins a version you don't have? Press the button, see exactly what will run, and watch it happen with real progress.

  • Knows who uses what

    Each version shows the projects that use it. Remove the unused ones; they go to the Trash, and you see every step first.

  • Get any version, from the source

    Every version of Flutter, Node, Java, Python, Go, Rust and more, straight from the publisher and checked against their hash.

  • Clean up old projects

    Build folders, node_modules and Pods in projects you haven't touched in months, cleared in one go. They come back on the next build.

  • Emulators and simulators

    Every Android emulator and iOS simulator with its size and last start. Start, erase or delete them in one place.

What it does

Your dev machine, finally in order

  • Every tech in one window

    Flutter (FVM or standalone), Node (nvm, fnm, Volta), the Android SDK, Xcode simulators, Java, Python, .NET and Gradle, plus the React, Next.js, Vue and other frameworks your projects use.

  • Knows which project uses what

    It reads .fvmrc, .nvmrc, package.json, Gradle files, .python-version and more, so every version shows the projects that need it, and the ones nothing uses stand out.

  • Problems come with a fix button

    A missing version a project pins, a broken JAVA_HOME, dead PATH entries, a Java too new for a Flutter app's Gradle: each is explained in plain words with a button that fixes it.

  • Safe by design

    You see every step before it runs. Removals go to the Recycle Bin or Trash, installed programs use their own uninstaller, and Stackyard never edits your projects.

  • Get any version

    A marketplace of SDKs and CLIs, every version listed from the publisher's own feed, downloaded from them and checked against their published hash.

  • Emulators and simulators

    Android emulators and iOS simulators with their size and last start, and the simulator runtimes Xcode keeps (often 8 GB each), with what uses them.

Screens

What you will see

The real app on a sample machine, so the project names are made up.

  • Each version and the projects that use it.
  • Every step shown before it runs; removals go to the Trash.
  • Get any version of the tools you build with.
  • Choose the folder and the variables before it installs.
  • Activity keeps the log of everything it did.
  • Simulators, with their size and when they last ran.

Install

Install on Windows or Mac

The download button picks the installer for your system. The Mac app is notarized by Apple; the Windows installer is built from the public source by GitHub Actions.

  1. Download for your computer

    The button gives you the installer for your system: Stackyard-Setup.exe on Windows, Stackyard.dmg on a Mac.

  2. Windows: run the installer

    It installs for your user only, with no administrator prompt. The installer isn't code signed yet, so Windows may show "Windows protected your PC": click More info, then Run anyway.

  3. Mac: drag it to Applications

    Open the DMG and drag Stackyard to Applications. It's signed and notarized by Apple, so it opens like any other app.

  4. Pick your project folders

    On first launch Stackyard finds the folders where your projects live and shows how many each holds. Add any it missed, and it scans.

Questions

Stackyard, in short

Price
Free
Requires
Windows 10 or 11, or macOS 12 or later
Runs on
64-bit Windows, Apple silicon and Intel Macs
Latest version
1.0.2, Oct 15, 2026
Checked by Apple
Mac app notarized
Source code
Open source, MIT license

What is Stackyard?

Stackyard is a free, open-source desktop app for Windows and Mac that shows every SDK, toolchain and framework version on your machine (Flutter, Node.js, the Android SDK, Xcode simulators, Java, Python, .NET and more), which of your projects use each one, and what's safe to remove. It also fixes common setup problems with one click.

Is Stackyard free?

Yes. Stackyard is free and open source under the MIT license, with every feature in the free app. The code is on GitHub at github.com/AqibJavedZeepalm/stackyard.

How do I remove old Flutter versions safely?

Open the Flutter page in Stackyard. Every installed version (FVM or standalone) shows the projects that use it; the unused ones are marked. Remove a version and it goes to the Trash or Recycle Bin, after you've seen exactly what will happen.

How does Stackyard know which project uses which version?

It reads the files projects pin versions in: .fvmrc for Flutter, .nvmrc and package.json for Node, gradle-wrapper.properties and build.gradle for Android, .python-version and global.json for Python and .NET. Projects without a pin are counted as using the default version.

Can Stackyard delete my projects or code?

No. Stackyard never edits or deletes your projects. Project cleanup only removes rebuildable folders such as build, node_modules, .dart_tool and Pods, which come back the next time you build, and it shows each folder before anything happens.

Does Stackyard clean up iOS simulators and Android emulators?

Yes. It lists every Android emulator and iOS simulator with its size and when it last ran, and lets you start, erase or delete them. On a Mac it also shows Xcode's simulator runtimes, often 8 GB each, with the simulators that use them.

Is Stackyard safe to install?

The Mac version is signed with my Apple Developer ID and notarized by Apple. The Windows installer is built from the public source by GitHub Actions; code signing for it is being set up, so for now Windows may ask you to confirm before it runs.

Privacy

Permissions, and what it does with them

  • Everything runs on your computer. No account and no telemetry.
  • It goes online only to list versions of the tools it manages and to download the ones you choose.
  • It reads your project folders to see which versions they use, and never changes your projects.
  • Every change is shown before it runs; removals go to the Recycle Bin or Trash by default.
  • Open source under the MIT license, so anyone can check what it does.

Feedback

Tell me what Stackyard should do next

Ask for a feature, report something that went wrong, or leave a review. It comes straight to me, and I read every one.

What is this about?

Release notes

What changed

  1. v1.0.2Oct 15, 2026

    • Glass now works on Windows 11: the window uses acrylic, so the slider lets your desktop show through. Windows 10 stays solid.
    • The first launch on a Mac is smoother, the setup buttons respond reliably, and settings are saved more safely.
    • Notifications never hold up the window while macOS asks for permission.

  2. v1.0.1Oct 15, 2026

    • First public release, for Windows and Mac.
    • Flutter, Node.js, the Android SDK, Xcode simulators, Gradle, Java, Python and .NET, with the projects that use each version.
    • A marketplace of SDKs and CLIs, a setup assistant that finds your project folders, live progress for every job, and a glass window on both systems.

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