Installation

What Ditto needs, how to install it, where it lives, and how to update or remove it.

Requirements

• OS: Windows 10 or 11, 64-bit
• Disk: ~600 MB for the app, plus space for the model you choose (75 MB to 2.9 GB depending on size)
• GPU (optional): any recent NVIDIA card with up-to-date drivers. CUDA Toolkit is not required, the necessary runtime DLLs ship with Ditto.

Download

Get Ditto-Setup-1.0.0.exe from the download page or directly from GitHub Releases.

The installer is around 400 MB. Most of that is the bundled CUDA runtime (cuBLAS, cuDNN). The Whisper model is downloaded separately on first launch.

Run the installer

Double-click the .exe. The first time Windows will show a SmartScreen warning:

This is expected. Ditto is not yet signed with a code-signing certificate, which is common for open source apps shipping their first release. To continue:

1. Click More info
2. Click Run anyway

The NSIS installer opens. By default Ditto installs to:

%LOCALAPPDATA%\Programs\Ditto\

You can change the location during install. The installer creates:

• A Desktop shortcut
• A Start Menu shortcut
• An entry in Apps & features

Where things live

After install, Ditto’s files are in two places:

Program files are removed when you uninstall. User data is not — your settings and downloaded models stay until you delete them manually or use Settings → Advanced → Delete all data.

Update

Ditto does not yet auto-update. To install a newer version:

1. Download the new Ditto-Setup-X.Y.Z.exe
2. Run it (you can keep the old version installed; the installer handles the upgrade)
3. Your settings and downloaded models are preserved

Uninstall

Two ways:

From Windows:

1. Open Settings → Apps → Installed apps
2. Find Ditto
3. Click ⋯ → Uninstall

From the install folder:

• Run Uninstall Ditto.exe inside %LOCALAPPDATA%\Programs\Ditto\

Either way, the program files are removed. To also remove your downloaded models and settings, delete the folder %APPDATA%\ditto\ manually.