diff --git a/packages/rocketchat-message-star/client/actionButton.coffee b/packages/rocketchat-message-star/client/actionButton.coffee
deleted file mode 100644
index c0b873a6db8c..000000000000
--- a/packages/rocketchat-message-star/client/actionButton.coffee
+++ /dev/null
@@ -1,83 +0,0 @@
-import toastr from 'toastr'
-Meteor.startup ->
-	RocketChat.MessageAction.addButton
-		id: 'star-message'
-		icon: 'icon-star-empty'
-		i18nLabel: 'Star_Message'
-		context: [
-			'starred'
-			'message'
-			'message-mobile'
-		]
-		action: (event, instance) ->
-			message = @_arguments[1]
-			message.starred = Meteor.userId()
-			Meteor.call 'starMessage', message, (error, result) ->
-				if error
-					return handleError(error)
-		validation: (message) ->
-			if not RocketChat.models.Subscriptions.findOne({ rid: message.rid })?
-				return false
-
-			return RocketChat.settings.get('Message_AllowStarring') and not message.starred
-		order: 10
-
-	RocketChat.MessageAction.addButton
-		id: 'unstar-message'
-		icon: 'icon-star'
-		i18nLabel: 'Unstar_Message'
-		context: [
-			'starred'
-			'message'
-			'message-mobile'
-		]
-		action: (event, instance) ->
-			message = @_arguments[1]
-			message.starred = false
-			Meteor.call 'starMessage', message, (error, result) ->
-				if error
-					return handleError(error)
-		validation: (message) ->
-			if not RocketChat.models.Subscriptions.findOne({ rid: message.rid })?
-				return false
-
-			return RocketChat.settings.get('Message_AllowStarring') and message.starred
-		order: 10
-
-	RocketChat.MessageAction.addButton
-		id: 'jump-to-star-message'
-		icon: 'icon-right-hand'
-		i18nLabel: 'Jump_to_message'
-		context: [
-			'starred'
-		]
-		action: (event, instance) ->
-			message = @_arguments[1]
-			RocketChat.MessageAction.hideDropDown()
-			RoomHistoryManager.getSurroundingMessages(message, 50)
-		validation: (message) ->
-			if not RocketChat.models.Subscriptions.findOne({ rid: message.rid })?
-				return false
-
-			return true
-		order: 100
-
-	RocketChat.MessageAction.addButton
-		id: 'permalink-star'
-		icon: 'icon-link'
-		i18nLabel: 'Permalink'
-		classes: 'clipboard'
-		context: [
-			'starred'
-		]
-		action: (event, instance) ->
-			message = @_arguments[1]
-			RocketChat.MessageAction.hideDropDown()
-			$(event.currentTarget).attr('data-clipboard-text', RocketChat.MessageAction.getPermaLink(message._id));
-			toastr.success(TAPi18n.__('Copied'))
-		validation: (message) ->
-			if not RocketChat.models.Subscriptions.findOne({ rid: message.rid })?
-				return false
-
-			return true
-		order: 101
diff --git a/packages/rocketchat-message-star/client/actionButton.js b/packages/rocketchat-message-star/client/actionButton.js
new file mode 100644
index 000000000000..8b8a82e31c9f
--- /dev/null
+++ b/packages/rocketchat-message-star/client/actionButton.js
@@ -0,0 +1,85 @@
+import toastr from 'toastr';
+Meteor.startup(function() {
+	RocketChat.MessageAction.addButton({
+		id: 'star-message',
+		icon: 'icon-star-empty',
+		i18nLabel: 'Star_Message',
+		context: ['starred', 'message', 'message-mobile'],
+		action() {
+			const message = this._arguments[1];
+			message.starred = Meteor.userId();
+			return Meteor.call('starMessage', message, function(error) {
+				if (error) {
+					return handleError(error);
+				}
+			});
+		},
+		validation(message) {
+			if (RocketChat.models.Subscriptions.findOne({ rid: message.rid }) == null) {
+				return false;
+			}
+			return RocketChat.settings.get('Message_AllowStarring') && !message.starred;
+		},
+		order: 10
+	});
+	RocketChat.MessageAction.addButton({
+		id: 'unstar-message',
+		icon: 'icon-star',
+		i18nLabel: 'Unstar_Message',
+		context: ['starred', 'message', 'message-mobile'],
+		action() {
+			const message = this._arguments[1];
+			message.starred = false;
+			return Meteor.call('starMessage', message, function(error) {
+				if (error) {
+					return handleError(error);
+				}
+			});
+		},
+		validation(message) {
+			if (RocketChat.models.Subscriptions.findOne({ rid: message.rid }) == null) {
+				return false;
+			}
+			return RocketChat.settings.get('Message_AllowStarring') && message.starred;
+		},
+		order: 10
+	});
+	RocketChat.MessageAction.addButton({
+		id: 'jump-to-star-message',
+		icon: 'icon-right-hand',
+		i18nLabel: 'Jump_to_message',
+		context: ['starred'],
+		action() {
+			const message = this._arguments[1];
+			RocketChat.MessageAction.hideDropDown();
+			return RoomHistoryManager.getSurroundingMessages(message, 50);
+		},
+		validation(message) {
+			if (RocketChat.models.Subscriptions.findOne({ rid: message.rid }) == null) {
+				return false;
+			}
+			return true;
+		},
+		order: 100
+	});
+	return RocketChat.MessageAction.addButton({
+		id: 'permalink-star',
+		icon: 'icon-link',
+		i18nLabel: 'Permalink',
+		classes: 'clipboard',
+		context: ['starred'],
+		action() {
+			const message = this._arguments[1];
+			RocketChat.MessageAction.hideDropDown();
+			$(event.currentTarget).attr('data-clipboard-text', RocketChat.MessageAction.getPermaLink(message._id));
+			return toastr.success(TAPi18n.__('Copied'));
+		},
+		validation(message) {
+			if (RocketChat.models.Subscriptions.findOne({ rid: message.rid }) == null) {
+				return false;
+			}
+			return true;
+		},
+		order: 101
+	});
+});
diff --git a/packages/rocketchat-message-star/client/lib/StarredMessage.coffee b/packages/rocketchat-message-star/client/lib/StarredMessage.coffee
deleted file mode 100644
index 10798a3a464b..000000000000
--- a/packages/rocketchat-message-star/client/lib/StarredMessage.coffee
+++ /dev/null
@@ -1 +0,0 @@
-@StarredMessage = new Mongo.Collection 'rocketchat_starred_message'
diff --git a/packages/rocketchat-message-star/client/lib/StarredMessage.js b/packages/rocketchat-message-star/client/lib/StarredMessage.js
new file mode 100644
index 000000000000..cd014935ac3f
--- /dev/null
+++ b/packages/rocketchat-message-star/client/lib/StarredMessage.js
@@ -0,0 +1 @@
+this.StarredMessage = new Mongo.Collection('rocketchat_starred_message');
diff --git a/packages/rocketchat-message-star/client/starMessage.coffee b/packages/rocketchat-message-star/client/starMessage.coffee
deleted file mode 100644
index d6b22b9488a8..000000000000
--- a/packages/rocketchat-message-star/client/starMessage.coffee
+++ /dev/null
@@ -1,15 +0,0 @@
-Meteor.methods
-	starMessage: (message) ->
-		if not Meteor.userId()
-			return false
-
-		if not RocketChat.models.Subscriptions.findOne({ rid: message.rid })?
-			return false
-
-		if not RocketChat.settings.get 'Message_AllowStarring'
-			return false
-
-		ChatMessage.update
-			_id: message._id
-		,
-			$set: { starred: !!message.starred }
diff --git a/packages/rocketchat-message-star/client/starMessage.js b/packages/rocketchat-message-star/client/starMessage.js
new file mode 100644
index 000000000000..cae539c7eaa1
--- /dev/null
+++ b/packages/rocketchat-message-star/client/starMessage.js
@@ -0,0 +1,20 @@
+Meteor.methods({
+	starMessage(message) {
+		if (!Meteor.userId()) {
+			return false;
+		}
+		if (RocketChat.models.Subscriptions.findOne({ rid: message.rid }) == null) {
+			return false;
+		}
+		if (!RocketChat.settings.get('Message_AllowStarring')) {
+			return false;
+		}
+		return ChatMessage.update({
+			_id: message._id
+		}, {
+			$set: {
+				starred: !!message.starred
+			}
+		});
+	}
+});
diff --git a/packages/rocketchat-message-star/client/tabBar.coffee b/packages/rocketchat-message-star/client/tabBar.js
similarity index 68%
rename from packages/rocketchat-message-star/client/tabBar.coffee
rename to packages/rocketchat-message-star/client/tabBar.js
index cab66321912a..85f32f93349a 100644
--- a/packages/rocketchat-message-star/client/tabBar.coffee
+++ b/packages/rocketchat-message-star/client/tabBar.js
@@ -1,9 +1,10 @@
-Meteor.startup ->
-	RocketChat.TabBar.addButton({
+Meteor.startup(function() {
+	return RocketChat.TabBar.addButton({
 		groups: ['channel', 'group', 'direct'],
 		id: 'starred-messages',
 		i18nTitle: 'Starred_Messages',
 		icon: 'icon-star',
 		template: 'starredMessages',
 		order: 3
-	})
+	});
+});
diff --git a/packages/rocketchat-message-star/client/views/starredMessages.coffee b/packages/rocketchat-message-star/client/views/starredMessages.coffee
deleted file mode 100644
index 9b34d6269365..000000000000
--- a/packages/rocketchat-message-star/client/views/starredMessages.coffee
+++ /dev/null
@@ -1,40 +0,0 @@
-Template.starredMessages.helpers
-	hasMessages: ->
-		return StarredMessage.find({ rid: @rid }, { sort: { ts: -1 } }).count() > 0
-
-	messages: ->
-		return StarredMessage.find { rid: @rid }, { sort: { ts: -1 } }
-
-	message: ->
-		return _.extend(this, { customClass: 'starred' })
-
-	hasMore: ->
-		return Template.instance().hasMore.get()
-
-Template.starredMessages.onCreated ->
-	@hasMore = new ReactiveVar true
-	@limit = new ReactiveVar 50
-	@autorun =>
-		sub = @subscribe 'starredMessages', @data.rid, @limit.get()
-		if sub.ready()
-			if StarredMessage.find({ rid: @data.rid }).count() < @limit.get()
-				@hasMore.set false
-
-Template.starredMessages.events
-	'click .message-cog': (e, t) ->
-		e.stopPropagation()
-		e.preventDefault()
-		message_id = $(e.currentTarget).closest('.message').attr('id')
-		RocketChat.MessageAction.hideDropDown()
-		t.$("\##{message_id} .message-dropdown").remove()
-		message = StarredMessage.findOne message_id
-		actions = RocketChat.MessageAction.getButtons message, 'starred'
-		el = Blaze.toHTMLWithData Template.messageDropdown, { actions: actions }
-		t.$("\##{message_id} .message-cog-container").append el
-		dropDown = t.$("\##{message_id} .message-dropdown")
-		dropDown.show()
-
-	'scroll .content': _.throttle (e, instance) ->
-		if e.target.scrollTop >= e.target.scrollHeight - e.target.clientHeight
-			instance.limit.set(instance.limit.get() + 50)
-	, 200
diff --git a/packages/rocketchat-message-star/client/views/starredMessages.js b/packages/rocketchat-message-star/client/views/starredMessages.js
new file mode 100644
index 000000000000..eed8d3d0baca
--- /dev/null
+++ b/packages/rocketchat-message-star/client/views/starredMessages.js
@@ -0,0 +1,66 @@
+/*globals StarredMessage */
+Template.starredMessages.helpers({
+	hasMessages() {
+		return StarredMessage.find({
+			rid: this.rid
+		}, {
+			sort: {
+				ts: -1
+			}
+		}).count() > 0;
+	},
+	messages() {
+		return StarredMessage.find({
+			rid: this.rid
+		}, {
+			sort: {
+				ts: -1
+			}
+		});
+	},
+	message() {
+		return _.extend(this, {
+			customClass: 'starred'
+		});
+	},
+	hasMore() {
+		return Template.instance().hasMore.get();
+	}
+});
+
+Template.starredMessages.onCreated(function() {
+	this.hasMore = new ReactiveVar(true);
+	this.limit = new ReactiveVar(50);
+	this.autorun(() => {
+		const sub = this.subscribe('starredMessages', this.data.rid, this.limit.get());
+		const findStarredMessage = StarredMessage.find({ rid: this.data.rid });
+		if (sub.ready()) {
+			if (findStarredMessage.count() < this.limit.get()) {
+				return this.hasMore.set(false);
+			}
+		}
+	});
+});
+
+Template.starredMessages.events({
+	'click .message-cog'(e, t) {
+		e.stopPropagation();
+		e.preventDefault();
+		const message_id = $(e.currentTarget).closest('.message').attr('id');
+		RocketChat.MessageAction.hideDropDown();
+		t.$(`\#${ message_id } .message-dropdown`).remove();
+		const message = StarredMessage.findOne(message_id);
+		const actions = RocketChat.MessageAction.getButtons(message, 'starred');
+		const el = Blaze.toHTMLWithData(Template.messageDropdown, {
+			actions
+		});
+		t.$(`\#${ message_id } .message-cog-container`).append(el);
+		const dropDown = t.$(`\#${ message_id } .message-dropdown`);
+		return dropDown.show();
+	},
+	'scroll .content': _.throttle(function(e, instance) {
+		if (e.target.scrollTop >= e.target.scrollHeight - e.target.clientHeight) {
+			return instance.limit.set(instance.limit.get() + 50);
+		}
+	}, 200)
+});
diff --git a/packages/rocketchat-message-star/package.js b/packages/rocketchat-message-star/package.js
index c9bcefca8cb1..b0e1f3e6b6bb 100644
--- a/packages/rocketchat-message-star/package.js
+++ b/packages/rocketchat-message-star/package.js
@@ -8,7 +8,6 @@ Package.describe({
 Package.onUse(function(api) {
 	api.use([
 		'mongo',
-		'coffeescript',
 		'ecmascript',
 		'underscore',
 		'less',
@@ -18,19 +17,19 @@ Package.onUse(function(api) {
 	api.use('templating', 'client');
 
 	api.addFiles([
-		'client/lib/StarredMessage.coffee',
-		'client/actionButton.coffee',
-		'client/starMessage.coffee',
-		'client/tabBar.coffee',
+		'client/lib/StarredMessage.js',
+		'client/actionButton.js',
+		'client/starMessage.js',
+		'client/tabBar.js',
 		'client/views/starredMessages.html',
-		'client/views/starredMessages.coffee',
+		'client/views/starredMessages.js',
 		'client/views/stylesheets/messagestar.less'
 	], 'client');
 
 	api.addFiles([
-		'server/settings.coffee',
-		'server/starMessage.coffee',
-		'server/publications/starredMessages.coffee',
-		'server/startup/indexes.coffee'
+		'server/settings.js',
+		'server/starMessage.js',
+		'server/publications/starredMessages.js',
+		'server/startup/indexes.js'
 	], 'server');
 });
diff --git a/packages/rocketchat-message-star/server/publications/starredMessages.coffee b/packages/rocketchat-message-star/server/publications/starredMessages.coffee
deleted file mode 100644
index 51d664d76530..000000000000
--- a/packages/rocketchat-message-star/server/publications/starredMessages.coffee
+++ /dev/null
@@ -1,23 +0,0 @@
-Meteor.publish 'starredMessages', (rid, limit=50) ->
-	unless this.userId
-		return this.ready()
-
-	publication = @
-
-	user = RocketChat.models.Users.findOneById this.userId
-	unless user
-		return this.ready()
-
-	cursorHandle = RocketChat.models.Messages.findStarredByUserAtRoom(this.userId, rid, { sort: { ts: -1 }, limit: limit }).observeChanges
-		added: (_id, record) ->
-			publication.added('rocketchat_starred_message', _id, record)
-
-		changed: (_id, record) ->
-			publication.changed('rocketchat_starred_message', _id, record)
-
-		removed: (_id) ->
-			publication.removed('rocketchat_starred_message', _id)
-
-	@ready()
-	@onStop ->
-		cursorHandle.stop()
diff --git a/packages/rocketchat-message-star/server/publications/starredMessages.js b/packages/rocketchat-message-star/server/publications/starredMessages.js
new file mode 100644
index 000000000000..15446bebeef5
--- /dev/null
+++ b/packages/rocketchat-message-star/server/publications/starredMessages.js
@@ -0,0 +1,30 @@
+Meteor.publish('starredMessages', function(rid, limit = 50) {
+	if (!this.userId) {
+		return this.ready();
+	}
+	const publication = this;
+	const user = RocketChat.models.Users.findOneById(this.userId);
+	if (!user) {
+		return this.ready();
+	}
+	const cursorHandle = RocketChat.models.Messages.findStarredByUserAtRoom(this.userId, rid, {
+		sort: {
+			ts: -1
+		},
+		limit
+	}).observeChanges({
+		added(_id, record) {
+			return publication.added('rocketchat_starred_message', _id, record);
+		},
+		changed(_id, record) {
+			return publication.changed('rocketchat_starred_message', _id, record);
+		},
+		removed(_id) {
+			return publication.removed('rocketchat_starred_message', _id);
+		}
+	});
+	this.ready();
+	return this.onStop(function() {
+		return cursorHandle.stop();
+	});
+});
diff --git a/packages/rocketchat-message-star/server/settings.coffee b/packages/rocketchat-message-star/server/settings.coffee
deleted file mode 100644
index de6bb651c8f7..000000000000
--- a/packages/rocketchat-message-star/server/settings.coffee
+++ /dev/null
@@ -1,2 +0,0 @@
-Meteor.startup ->
-	RocketChat.settings.add 'Message_AllowStarring', true, { type: 'boolean', group: 'Message', public: true }
diff --git a/packages/rocketchat-message-star/server/settings.js b/packages/rocketchat-message-star/server/settings.js
new file mode 100644
index 000000000000..4a8fa47af713
--- /dev/null
+++ b/packages/rocketchat-message-star/server/settings.js
@@ -0,0 +1,7 @@
+Meteor.startup(function() {
+	return RocketChat.settings.add('Message_AllowStarring', true, {
+		type: 'boolean',
+		group: 'Message',
+		'public': true
+	});
+});
diff --git a/packages/rocketchat-message-star/server/starMessage.coffee b/packages/rocketchat-message-star/server/starMessage.coffee
deleted file mode 100644
index 030fa9081628..000000000000
--- a/packages/rocketchat-message-star/server/starMessage.coffee
+++ /dev/null
@@ -1,14 +0,0 @@
-Meteor.methods
-	starMessage: (message) ->
-		if not Meteor.userId()
-			throw new Meteor.Error('error-invalid-user', "Invalid user", { method: 'starMessage' })
-
-		if not RocketChat.settings.get 'Message_AllowStarring'
-			throw new Meteor.Error 'error-action-not-allowed', 'Message starring not allowed', { method: 'pinMessage', action: 'Message_starring' }
-
-		room = RocketChat.models.Rooms.findOneById(message.rid)
-
-		if Array.isArray(room.usernames) && room.usernames.indexOf(Meteor.user().username) is -1
-			return false
-
-		RocketChat.models.Messages.updateUserStarById(message._id, Meteor.userId(), message.starred)
diff --git a/packages/rocketchat-message-star/server/starMessage.js b/packages/rocketchat-message-star/server/starMessage.js
new file mode 100644
index 000000000000..3ed7ee3bd8b6
--- /dev/null
+++ b/packages/rocketchat-message-star/server/starMessage.js
@@ -0,0 +1,21 @@
+Meteor.methods({
+	starMessage(message) {
+		if (!Meteor.userId()) {
+			throw new Meteor.Error('error-invalid-user', 'Invalid user', {
+				method: 'starMessage'
+			});
+		}
+		if (!RocketChat.settings.get('Message_AllowStarring')) {
+			throw new Meteor.Error('error-action-not-allowed', 'Message starring not allowed', {
+				method: 'pinMessage',
+				action: 'Message_starring'
+			});
+		}
+		const room = RocketChat.models.Rooms.findOneById(message.rid);
+		if (Array.isArray(room.usernames) && room.usernames.indexOf(Meteor.user().username) === -1) {
+			return false;
+		}
+		return RocketChat.models.Messages.updateUserStarById(message._id, Meteor.userId(), message.starred);
+	}
+});
+
diff --git a/packages/rocketchat-message-star/server/startup/indexes.coffee b/packages/rocketchat-message-star/server/startup/indexes.coffee
deleted file mode 100644
index 519eb19b596f..000000000000
--- a/packages/rocketchat-message-star/server/startup/indexes.coffee
+++ /dev/null
@@ -1,3 +0,0 @@
-Meteor.startup ->
-	Meteor.defer ->
-		RocketChat.models.Messages.tryEnsureIndex { 'starred._id': 1 }, { sparse: 1 }
diff --git a/packages/rocketchat-message-star/server/startup/indexes.js b/packages/rocketchat-message-star/server/startup/indexes.js
new file mode 100644
index 000000000000..f1946d6f4eb1
--- /dev/null
+++ b/packages/rocketchat-message-star/server/startup/indexes.js
@@ -0,0 +1,9 @@
+Meteor.startup(function() {
+	return Meteor.defer(function() {
+		return RocketChat.models.Messages.tryEnsureIndex({
+			'starred._id': 1
+		}, {
+			sparse: 1
+		});
+	});
+});