AI polygons keep the right amount of detailv7.2.0

Install Labelme as App

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If you have Labelme Starter or Pro, you can simply download Labelme as app:

  • Labelme.exe for Windows,
  • Labelme.app for macOS,
  • Labelme executable for Linux.

Download the app

NOTE: We supports OS versions that are not EOL (End of Life). See for Windows, macOS, and Linux.

Download the app for your operating system. (sign-in required 🔒)

v7.2.0 (changelog)

For previous versions, check "All released versions".

For the detailed steps, follow the below instructions.

If you encounter any issues with Labelme, please follow Troubleshoot.

Install SAM3 without internet access

Labelme downloads model weights on first use. For an air-gapped machine, download the SAM3 offline pack and its SHA-256 checksum on a connected machine, then transfer both files.

On Windows, open PowerShell in the folder containing the pack and run:

Get-FileHash .\labelme-sam3-osam-0.6.0.zip -Algorithm SHA256
Expand-Archive .\labelme-sam3-osam-0.6.0.zip -DestinationPath "$env:USERPROFILE\.cache\osam\models" -Force

On macOS or Linux, run:

# macOS
shasum -a 256 labelme-sam3-osam-0.6.0.zip
# Linux
sha256sum labelme-sam3-osam-0.6.0.zip
mkdir -p ~/.cache/osam/models
unzip labelme-sam3-osam-0.6.0.zip -d ~/.cache/osam/models

Compare the printed hash with the downloaded checksum before continuing. In Labelme's AI-Box model dropdown, select Sam3; the default Sam2 (balanced) uses different model files. For AI Text-to-Annotation, select SAM3 (smart). After extraction, both modes run without a network connection.

Installation steps for Windows (installer)

  1. Download the installer and extract the zip file: 'Extract All...'.

  2. Run Labelme.msi in the extracted folder.

  3. Open the Labelme.exe from the Start menu.

  4. (Optional) Customize the config by editing ~/.labelmerc.

Installation steps for Windows (portable exe)

  1. Download the portable exe and extract the zip file: 'Extract All...'.

  2. Open the extracted folder and run Labelme-portable.exe.

  3. (Optional) Customize the config by editing labelmerc in the same folder.

Installation steps for macOS

  1. Current Labelme app builds require Apple Silicon. Intel Macs can use Labelme app v7.0.4 or earlier.

  2. Download the macOS installer.

  3. Extract the zip file to a Labelme.dmg opening with 'Archive Utility.app'.

  4. Open the dmg file and move Labelme.app to the Applications folder.

  5. Open the Labelme.app from the Applications folder.

  6. (Optional) Customize the config by editing ~/.labelmerc.