Angular (ng) services debug via console.

ngDebug.js

var ng = ngDebug;
var $filter;

function getService(name) {
  return angular.element('body').injector().get(name);
};

function ngDebug(name) {
  var providers = [];

  angular.module(name)._invokeQueue.forEach(function(item){
    (item[0]==='$provide') && providers.push(item[2][0]);
  });

  providers.forEach(function(provider) {
    // Load Service.
    ng[provider] = getService(provider);    
  })

  // Load angular usefull services.
  $filter = getService('$filter');
};

ngDebug(angular.element('[ng-app]').attr('ng-app'));