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A browser console improvement, in less than 1 kB

npm version Build Status Greenkeeper badge gzip size

What is badgee?

It's an add-on to the browser console, created to improve readability and flexibility. It provides the same API than your brower console, adding a few extra features.


Install with NPM

npm install --save badgee


Work pretty well in Chrome, Firefox Web Console or Firebug and Safari desktop.


badgee is superset of the console object. You can start using it without configuration as you usually do with console object.

badgee.log('Configuring badgee...');



A simple configuration object allows to:

  • enable/disable logs globally
  • enable/disable styled badges globally

Default configuration is: { enabled: true, styled: true }

  enabled: true,
  styled: false

Called without any arguments, the config method returns the current configuration

badgee.log( 'Config set to:', badgee.config() );


Defining a new badgee instance

The define() method creates a new badgee instance identified by the first argument. The second argument points to an already defined style. The returned object works the same way as console or badgee objects, but every console output is prefixed with a "green" styled badge.

var helloBadge = badgee.define('Hello', 'green');
helloBadge.log('hello badge defined!');


Styling badges

There is already a few styles defined for your badges. You can list them all using the style() method without any argument.

badgee.log('Default styles for your badgee:',;
// Default styles for your badgee: ["green", "orange", "red"]


You can define your own badge style by calling the style() method with a name and a list of properties.'super_important', {
  color          : 'white',
  background     : 'red',
  'font-size'    : '15px',
  'font-weight'  : 'bold',
  'border-radius': '2px',
  padding        : '1px 3px',
  margin         : '0 1px'

The style list gets updated after defining a new style.

badgee.log('Added "super_important" style to the list:',;
// Added "super_important" style to the list: ["green", "orange", "red", "super_important"]


Once a new style is defined, it can be used to define a new badge.

var importantBadge = badgee.define('Important', 'super_important');
importantBadge.log("Don't miss this one!");


Reusing badgee instances

Somewhere else in your application, you may want to reuse an existing badge. Get it back by calling the get() method with the badge identifier as a first argument.

var helloBadge = badgee.get('Hello');
helloBadge.log('Using Hello badge from another module');


Nested badges

You can also use the define() method on an existing badgee instance to define a nested badge. The newly defined object is still a badgee instance. But every console output will be prefixed with two badges instead of one.

var helloWorldBadge = helloBadge.define('world', 'purple');
helloWorldBadge.log('hello world badge defined!');


As any badgee instance is a 'console' superset, you can also use any other console method, as you used to.'Creating a "group"');
  helloBadge.debug('This is a "debug"');'This is a" info"');
  helloWorldBadge.warn('This is a "warn"');
  helloWorldBadge.error('This is an "error"');


Some methods can be prefixed with a badge but are still available for convenience.

helloBadge.groupCollapsed('Creating a "groupCollapsed"');
  // 'clear()' method is also available but commented for obvious reason
  // helloBadge.clear();
  helloBadge.dir({a: 'this is', b: 'a dir'});
helloBadge.groupEnd(); // 'groupEnd()' is available to match with 'groupCollapsed()'

Note: Since v2.0.0, most unformatable methods have been removed from badgee support. Please use console object directly for assert, count, exception, markTimeline, profile, profileEnd, table, trace, time, timeEnd, timeStamp, timeline, timelineEnd.


badgee allows you to define inclusive and exclusive filters. Those filters are applied globally to every single defined instance. Filters are cummulative. You can define both an inclusive and a exclusive filter.

Inclusive filter

Defining a global inclusive filter. Only outputs logs from loggers that match the defined filter.


helloBadge.log('Filter: matches /hello/i : not filtered');
helloWorldBadge.log('Filter: matches /hello/i : not filtered');
important.log('Filter: matches /hello/i : filtered, won\'t be displayed');
styledBadge.log('Filter: matches /hello/i : filtered, won\'t be displayed');

Exclusive filter

Defining a global exclusive filter Output every logs except those from loggers that match the filter.


helloBadge.log('Filter: doesn\'t match /world/i : not filtered');
helloWorldBadge.log('Filter: doesn\'t match /world/i : filtered - won\'t be displayed');

Cleaning filters

Remove already defined filters.




Update the configuration with the provided settings object. Or returns the current configuration when called without parameter.

  • settings (Optionnal) Type: Object A set of key/value pairs to configure the badges

    • enabled (default: true)
      Type: boolean
      If set to false, logs will no longer be displayed to the console. Otherwise logs are displayed as usual

    • styled (default: true)
      Type: boolean
      If set to false, label prefixes will be displayed with default output style. Otherwise, label prefixes will be formated as defined by style property (see ).[name], [style])

When called without parameters, returns the list of already defined styles.

  • name Type: String The name of the new style to define/retrive.
  • style Type: Object A set of key/value pairs to define a CSS style for badges.


When called without parameters, returns the current default styles.

  • style Type: Object A set of key/value pairs to apply by defaultwhen defining a new style for badges.

badgee.define(label, style)

Creates and returns a new badgee instance, for which every console output will be prefixed with the provided label, formated according to provided style definition.

  • label
    Type: String
    The name of the badgee instance

  • style
    Type: String
    The name of an already defined badgee style (see


Returns an existing badgee instance, identified by its label

  • label
    Type: String
    The name of the badgee instance