Web UI

Starting the Web UI

Launch an interactive browser interface:

jake --web

Opens a web dashboard at http://localhost:8420 where you can:

Browse all available recipes
View recipe details, dependencies, and commands
Run tasks with a single click
Fill in recipe parameters before running
Monitor real-time command output

Automatic browser launch is skipped when CI or JAKE_NO_BROWSER is set.

Custom Port

Use a different port:

jake --web --port 9000

Features

Real-Time Output

Command output streams to the browser via WebSocket as it runs. No need to refresh - see results instantly.

Interactive Prompts

@confirm prompts are forwarded to the browser so you can approve or reject them without leaving the Web UI.

Subprocess prompts are different: commands that try to read from stdin themselves, such as npx install prompts or other terminal-driven wizards, are not interactive in the Web UI. Browser-triggered runs disable child stdin so those commands fail instead of hanging indefinitely. Use tool-specific non-interactive flags such as npx --yes, or run those recipes from a terminal instead.

Stop / Cancel

Use the stop control in the browser to cancel the active run. Jake terminates the running command tree and reports the cancellation back through the normal task output and summary stream.

Console Tee

Output appears in both the browser and your terminal simultaneously. Useful when you want to keep an eye on both.

CLI Parity

Web-triggered runs inherit the same execution settings as the CLI process that started the server:

--verbose keeps verbose execution enabled
-j / --jobs controls parallel execution
@require validation runs before execution starts
Recipe parameter values entered in the UI are forwarded as normal name=value arguments
@confirm prompts are handled interactively in the browser
Child-process stdin is disabled to avoid browser-triggered runs hanging on terminal-only prompts

Recipe Browser

View all your recipes with:

Name and description
Dependencies
Commands that will run
Group organization

Private Recipe Filtering

Private recipes (names starting with _ or marked with @hidden) are automatically hidden, matching --list behavior.

Workflow

Start the server: jake --web
Open http://localhost:8420 in your browser
Click a recipe to view details
Click “Run” to execute
Watch output stream in real-time
Press Ctrl+C in terminal to stop the server

Combining with Other Flags

# Web UI with verbose output
jake --web --verbose

# Web UI with parallel execution
jake --web -j4

# Web UI with custom Jakefile
jake --web -f build.jake