bundle-roast — the npm scale that knows your sins

bundle-roast

2 min read Original article ↗

bundle/roast

edition №1558

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issue 001 · 2026 · npm desk filed under: weights

the npm scale that knows your sins

Bundlephobia, with teeth. Drop in any npm package and we'll tell you what it really costs — minified, brotli'd at quality 11, and the entire transitive dep tree drawn out in wires.

weighs less than what it judges · no ads · no cookies

open a case

type a package or expression

$ ./roast --target a package, or write an expression like react+react-dom | vue | svelte

the docket

updates hourly

start with one of these

curated

the e18e desk

community-flagged swaps · e18e.dev ↗

the ecosystem-performance community keeps a list of packages worth swapping. the desk weighs them against their suggested replacements — click a row and watch the numbers fall in.

the language

three operators

react
a single package

react+vue
two combined — sum the weight

react|vue
two compared — one column each

react+react-dom | vue | svelte
three columns, first is a combo

(react+vue) | svelte+kit
parens, in case precedence isn't obvious

+ binds tighter than |. Same shape as && binds tighter than || in your code.

what you get

three things

01

real bundles, real brotli at quality 11. no webpack-stats math, no estimates.

02

tree for the meticulous, wire-graph for the dramatic. every transitive dep weighed.

03

weigh real-world combos in one shot. shared deps light up amber so you see the double-pay.