0.2.1 • Public • Published


A flexible library to create CLIs


  • Regular options (--foo bar)
  • Boolean options (--foobar)
  • Key-value options (--foo=bar)
  • Short aliases (-f)
  • Array options (--foo bar --foo baz)
  • Grouped aliased flags (-abc)
  • Automatic -h, --help support
  • Expected arguments validation
  • Arbitrary depth of nested commands


Install with: npm i -P eclipt

const { eclipt } = require('eclipt');

eclipt('my-awesome-tool', {
    description: 'My Awesome Tool can do anything you with', // Optional description
    action: input => // optional action for the command
        console.log('You have run: %s with following input',, input),

    // optional array of supported arguments
    // OR single string to allow any number of arguments
    args: [ 'MY_ARG_1', 'MY_ARG_2' ],
    opts: {

        // Any number of options
        foo: { flag: true }, // A boolean option
        bar: { value: 'value' }, // A regular key and the name for it's value
        baz: { multi: true, value: 'value' }, // An array option that can appear multiple times
        opt1: { value: 'value', alias: 'o' }, // Aliased option
        opt2: { description: 'Does that' } // Optional description
    commands: {
        'command-name': { /* (description?, action?, args?, opts? commands?) */ }


  • unquote arguments and values
  • mark multi options some way in the help
  • validate against repeated aliases

Reporting Bugs

If you have found any problems with this module, please:

  1. Open an issue.
  2. Describe what happened and how.
  3. Also in the issue text, reference the label ~bug.

We will make sure to take a look when time allows us.

Proposing Features

If you wish to get that awesome feature or have some advice for us, please:

  1. Open an issue.
  2. Describe your ideas.
  3. Also in the issue text, reference the label ~proposal.


If you have spotted any enhancements to be made and is willing to get your hands dirty about it, fork us and submit your merge request so we can collaborate effectively.

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npm i eclipt

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  • gcsboss