# How to reduce the size of the ember builded js file?

**URL:** <https://discuss.emberjs.com/t/how-to-reduce-the-size-of-the-ember-builded-js-file/8972>\
**Category:** Ember CLI\
**Created:** [October 17, 2015, 7:31am UTC](https://discuss.emberjs.com/t/how-to-reduce-the-size-of-the-ember-builded-js-file/8972 "2015-10-17T07:31:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![luoguanzhong](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.emberjs.com/luoguanzhong/32/9971_2.png) [@luoguanzhong](https://discuss.emberjs.com/u/luoguanzhong)\
**Post date:** [October 17, 2015, 7:31am UTC](https://discuss.emberjs.com/t/how-to-reduce-the-size-of-the-ember-builded-js-file/8972/1 "2015-10-17T07:31:18Z")

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My vender.js file’s size is 1.7M…

Some suggestion? Does every ember addon will rerequire ember.js and emberdata.js feom there own bower.js config?

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**Author:** ![zoltan](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.emberjs.com/zoltan/32/16699_2.png) [@zoltan](https://discuss.emberjs.com/u/zoltan)\
**Post date:** [October 17, 2015, 11:57am UTC](https://discuss.emberjs.com/t/how-to-reduce-the-size-of-the-ember-builded-js-file/8972/2 "2015-10-17T11:57:44Z")

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I just created a clean project with the latest ember-cli. After running `ember build --prod`, the minimized vendor.js is 723 KB. (with Ember and EmberData v1.13.)

After I changed bower.json to use the latest version 2 jQuery. Size reduced: 711 KB.

After updating to Ember and EmberData to version 2.1 the size reduced: 635 KB.