rollup-plugin-sizes 
Simple analysis on rollup bundling, helping you to spot libaries bloating up your bundles.
/src/index.js:
codemirror - 446.92 KB (35.94%)
remarkable - 193.72 KB (15.58%)
app - 95.87 KB (7.71%)
autolinker - 81.64 KB (6.57%)
lodash.filter - 62.77 KB (5.05%)
...
or with way more details!
/src/index.js:
codemirror - 446.92 KB (35.94%)
lib\codemirror.js - 347.8 KB (77.82%)
mode\javascript\javascript.js - 27.78 KB (6.22%)
mode\markdown\markdown.js - 25.54 KB (5.72%)
mode\meta.js - 14.44 KB (3.23%)
mode\xml\xml.js - 12.52 KB (2.80%)
addon\edit\closebrackets.js - 7.04 KB (1.58%)
addon\edit\matchbrackets.js - 5.39 KB (1.21%)
addon\comment\continuecomment.js - 3.59 KB (0.80%)
addon\selection\active-line.js - 2.82 KB (0.63%)
remarkable - 193.72 KB (15.58%)
lib\common\entities.js - 46.44 KB (23.97%)
lib\rules.js - 10.2 KB (5.26%)
lib\rules_block\list.js - 6.65 KB (3.43%)
lib\ruler.js - 5.44 KB (2.81%)
lib\rules_block\deflist.js - 5.22 KB (2.69%)
...
Install
$ npm i rollup-plugin-sizes -D
Usage
Add to your rollup build as the last plugin via JS API or Config file.
JS API
var rollup = require("rollup"),
buble = require("rollup-plugin-buble"),
sizes = require("rollup-plugin-sizes");
rollup.rollup({
entry : "src/main.js",
plugins : [
buble(),
sizes()
]
}).then(function(bundle) {
...
});Config file
import buble from 'rollup-plugin-buble';
import sizes from 'rollup-plugin-sizes';
export default {
...
plugins : [
buble(),
sizes()
]
};Options
details - Set to true to enable file-by-file breakdowns of space usage.
report - Customize reporting. See source code for the default reporter.