Langflow Installer

One-click installer for Langflow 1.10.3 on Windows, macOS, and Linux — no admin rights required.

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Downloads

Platform	Download
Windows 10/11	langflow-installer-win.zip
macOS 12+	langflow-installer-macos.zip
Linux	langflow-installer-linux.zip

Quick Start (Windows)

1. Download the latest Windows release
2. Extract the zip anywhere
3. Double-click Install Langflow.bat

The script will:

• Install uv (self-bootstrapping package manager)
• Download Python 3.12
• Create a virtual environment in %USERPROFILE%\langflow\
• Install Langflow 1.10.3
• Create desktop shortcuts (Langflow Web.lnk and Stop Langflow.lnk)

After install, double-click the Langflow Web desktop shortcut. A terminal window will open, and your browser will launch automatically once the server is ready at http://127.0.0.1:7860. To stop the server, double-click Stop Langflow.

Having trouble? See docs/TROUBLESHOOTING.md for Smart App Control and antivirus help.

Quick Start (macOS)

1. Download the macOS release
2. Extract the zip (double-click in Finder)
3. Double-click Install Langflow.command

Gatekeeper warning: macOS will block the file the first time. Go to System Settings > Privacy & Security, scroll to Security, click Open Anyway next to the blocked file, then confirm. See the detailed guide for screenshots. This is one-time per file.

The script will:

• Install uv (self-bootstrapping package manager)
• Download Python 3.12
• Create a virtual environment in ~/langflow/
• Install Langflow 1.10.3
• Create desktop shortcuts (Langflow Web.command and Stop Langflow.command)

After install, double-click the Langflow Web desktop shortcut. Terminal will open, start the server, and open your browser automatically. To stop the server, double-click Stop Langflow.

Quick Start (Linux)

1. Download the Linux release
2. Extract the zip
3. Open a terminal in the extracted folder and run bash Install\ Langflow.sh

The script will:

• Install uv (self-bootstrapping package manager)
• Download Python 3.12
• Create a virtual environment in ~/langflow/
• Install Langflow 1.10.3
• Create desktop shortcuts in your app menu and on your desktop (for both starting and stopping Langflow)

After install, launch Langflow Web from your app menu or desktop shortcut. A terminal will open, start the server, and open your browser automatically. To stop the server, find Stop Langflow in your app menu or desktop.

Running manually

Windows:

powershell -ExecutionPolicy Bypass -File src\install-langflow-script.ps1

macOS/Linux:

bash src/install-langflow.sh

Uninstall

Re-run the installer script and select Uninstall. This removes:

• The Langflow directory (venv + Langflow)
• Desktop shortcuts (start and stop)
• Optionally Python 3.12

uv is kept — it may be useful for other projects.

Files

File	Purpose
Install Langflow.bat	Double-click launcher (Windows)
Install Langflow.command	Double-click launcher (macOS)
Install Langflow.sh	Launcher (Linux)
Stop Langflow.bat	Double-click stop launcher (Windows)
Stop Langflow.command	Double-click stop launcher (macOS)
Stop Langflow.sh	Stop launcher (Linux)
src/install-langflow-script.ps1	Main installer/uninstaller script (Windows)
src/install-langflow.sh	Main installer/uninstaller script (macOS/Linux)
src/stop-langflow-script.ps1	Stop script (Windows)
src/stop-langflow.sh	Stop script (macOS/Linux)
src/uv-install.ps1	Bundled uv bootstrapper (Windows)
scripts/verify.sh	Pre-commit verification checks
scripts/package.sh	Cross-platform packaging script (bash)
scripts/package.ps1	Cross-platform packaging script (PowerShell)
.github/workflows/verify.yml	CI: PR verification
.github/workflows/release.yml	CI: Automated release on tag push
docs/TROUBLESHOOTING.md	Common issues and fixes
docs/GATEKEEPER.md	macOS Gatekeeper bypass guide
CONTRACT.md	Formal requirements specification

Credits

• The Langflow desktop icon (src/assets/langflow.png and src/assets/langflow.ico) is from dashboard-icons by homarr-labs, licensed under MIT.

License

MIT