privatenumber / Minification Benchmarks
Licence: mit
🏃♂️🏃♀️🏃 JS minification benchmarks: babel-minify, esbuild, terser, uglify-js, swc, google closure compiler
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🏃♂️🏃♀️🏃 JS minification benchmarks
Benchmarks are gathered on the following minifiers:
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👟 Methodology
- Each minifier is executed in its own process
- The measured time is an average taken from 10 consecutive runs
- Each table is sorted by smallest minified size in ascending order
- Each time is annotated with a multiplier relative to the fastest minifier
- "Minzipped size" measures how well the minified file compresses with Gzip
- Comments are not stripped because not all minifiers support it
📋 Results
d3 v6.3.1
- Unminified size:
555.8 kB - Unminified Gzip size:
130.5 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| uglify-js | 🏆-53% 265.4 kB |
🏆-34% 87.3 kB |
81x 8,026ms
|
| terser |
-52% 268.0 kB
|
-33% 87.9 kB
|
42x 4,155ms
|
| esbuild |
-52% 270.4 kB
|
-31% 90.6 kB
|
🏆 99ms |
| uglify-js.no-compress |
-51% 276.1 kB
|
-33% 88.7 kB
|
13x 1,340ms
|
| terser.no-compress |
-51% 276.5 kB
|
-32% 89.2 kB
|
17x 1,744ms
|
| google-closure-compiler.simple |
-45% 306.3 kB
|
-22% 101.9 kB
|
103x 10,172ms
|
| swc |
-17% 463.0 kB
|
-10% 117.7 kB
|
3x 354ms
|
| babel-minify Failed | — | — | — |
| google-closure-compiler.advanced Failed | — | — | — |
jquery v3.5.1
- Unminified size:
287.6 kB - Unminified Gzip size:
84.7 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| google-closure-compiler.advanced | 🏆-70% 87.4 kB |
-62% 32.5 kB
|
199x 8,533ms
|
| uglify-js |
-70% 88.9 kB
|
🏆-64% 31.0 kB |
69x 2,980ms
|
| terser |
-69% 90.3 kB
|
-64% 31.2 kB
|
37x 1,608ms
|
| esbuild |
-69% 90.5 kB
|
-63% 32.2 kB
|
🏆 43ms |
| babel-minify |
-68% 92.4 kB
|
-63% 31.9 kB
|
112x 4,806ms
|
| uglify-js.no-compress |
-68% 94.3 kB
|
-63% 31.6 kB
|
13x 571ms
|
| terser.no-compress |
-67% 95.0 kB
|
-63% 31.9 kB
|
14x 620ms
|
| google-closure-compiler.simple |
-67% 96.5 kB
|
-60% 34.5 kB
|
131x 5,599ms
|
| swc |
-49% 147.8 kB
|
-51% 42.4 kB
|
1x 81ms
|
lodash v4.17.20
- Unminified size:
542.6 kB - Unminified Gzip size:
96.8 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| google-closure-compiler.advanced | 🏆-89% 60.2 kB |
🏆-79% 20.9 kB |
175x 8,411ms
|
| uglify-js |
-88% 69.5 kB
|
-75% 24.5 kB
|
60x 2,889ms
|
| terser |
-87% 71.2 kB
|
-74% 25.2 kB
|
36x 1,761ms
|
| babel-minify |
-87% 71.9 kB
|
-74% 25.3 kB
|
85x 4,112ms
|
| esbuild |
-87% 72.6 kB
|
-73% 26.2 kB
|
🏆 48ms |
| uglify-js.no-compress |
-87% 75.2 kB
|
-74% 25.8 kB
|
11x 571ms
|
| terser.no-compress |
-87% 75.8 kB
|
-73% 26.3 kB
|
14x 696ms
|
| google-closure-compiler.simple |
-86% 77.4 kB
|
-73% 26.3 kB
|
117x 5,634ms
|
| swc |
-72% 155.9 kB
|
-62% 37.6 kB
|
1x 71ms
|
moment v2.29.1
- Unminified size:
173.9 kB - Unminified Gzip size:
36.5 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| uglify-js | 🏆-67% 58.3 kB |
🏆-50% 18.5 kB |
65x 2,094ms
|
| terser |
-66% 59.2 kB
|
-49% 18.7 kB
|
38x 1,221ms
|
| babel-minify |
-66% 59.2 kB
|
-49% 18.8 kB
|
91x 2,907ms
|
| esbuild |
-66% 60.0 kB
|
-47% 19.4 kB
|
🏆 32ms |
| google-closure-compiler.simple |
-65% 60.9 kB
|
-47% 19.7 kB
|
157x 5,011ms
|
| uglify-js.no-compress |
-64% 63.0 kB
|
-47% 19.5 kB
|
11x 380ms
|
| terser.no-compress |
-64% 63.3 kB
|
-47% 19.7 kB
|
15x 484ms
|
| swc |
-42% 102.4 kB
|
-30% 25.9 kB
|
1x 48ms
|
| google-closure-compiler.advanced Failed | — | — | — |
react v17.0.1
- Unminified size:
72.1 kB - Unminified Gzip size:
19.5 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| uglify-js | 🏆-69% 22.8 kB |
🏆-58% 8.2 kB |
51x 915ms
|
| terser |
-68% 23.4 kB
|
-57% 8.4 kB
|
25x 460ms
|
| babel-minify |
-68% 23.8 kB
|
-57% 8.5 kB
|
68x 1,217ms
|
| esbuild |
-67% 24.0 kB
|
-56% 8.7 kB
|
1x 19ms
|
| uglify-js.no-compress |
-66% 25.1 kB
|
-56% 8.7 kB
|
9x 170ms
|
| terser.no-compress |
-65% 25.3 kB
|
-55% 8.9 kB
|
11x 208ms
|
| google-closure-compiler.simple |
-55% 32.9 kB
|
-43% 11.2 kB
|
235x 4,194ms
|
| swc |
-42% 42.5 kB
|
-42% 11.4 kB
|
🏆 18ms |
| google-closure-compiler.advanced Failed | — | — | — |
terser v5.6.0
- Unminified size:
868.1 kB - Unminified Gzip size:
174.2 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| uglify-js | 🏆-54% 407.1 kB |
🏆-34% 115.1 kB |
71x 6,464ms
|
| terser |
-53% 410.5 kB
|
-34% 115.2 kB
|
40x 3,637ms
|
| esbuild |
-53% 411.6 kB
|
-33% 118.0 kB
|
🏆 91ms |
| uglify-js.no-compress |
-52% 422.8 kB
|
-34% 116.0 kB
|
14x 1,320ms
|
| terser.no-compress |
-52% 424.3 kB
|
-34% 116.0 kB
|
16x 1,495ms
|
| google-closure-compiler.simple |
-52% 425.2 kB
|
-29% 125.3 kB
|
94x 8,590ms
|
| swc |
-33% 588.6 kB
|
-20% 140.8 kB
|
3x 296ms
|
| babel-minify Failed | — | — | — |
| google-closure-compiler.advanced Failed | — | — | — |
three v0.124.0
- Unminified size:
1.2 MB - Unminified Gzip size:
249.0 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| uglify-js | 🏆-49% 644.3 kB |
🏆-37% 158.7 kB |
67x 10,069ms
|
| babel-minify |
-49% 645.3 kB
|
-36% 161.4 kB
|
156x 23,345ms
|
| esbuild |
-49% 647.2 kB
|
-35% 163.3 kB
|
🏆 150ms |
| terser |
-48% 653.4 kB
|
-37% 159.1 kB
|
35x 5,368ms
|
| google-closure-compiler.simple |
-48% 660.1 kB
|
-33% 167.1 kB
|
77x 11,624ms
|
| uglify-js.no-compress |
-46% 675.4 kB
|
-35% 162.9 kB
|
12x 1,873ms
|
| terser.no-compress |
-46% 675.6 kB
|
-35% 162.9 kB
|
15x 2,265ms
|
| swc |
-24% 959.9 kB
|
-21% 197.0 kB
|
3x 530ms
|
| google-closure-compiler.advanced Failed | — | — | — |
vue v2.6.12
- Unminified size:
223.2 kB - Unminified Gzip size:
62.3 kB
| Minifier | Minified size | Minzipped size | Time |
|---|---|---|---|
| uglify-js | 🏆-58% 94.2 kB |
🏆-50% 31.2 kB |
54x 2,203ms
|
| terser |
-58% 95.0 kB
|
-50% 31.3 kB
|
31x 1,265ms
|
| esbuild |
-58% 95.2 kB
|
-49% 31.8 kB
|
🏆 40ms |
| babel-minify |
-58% 95.3 kB
|
-50% 31.5 kB
|
79x 3,214ms
|
| google-closure-compiler.simple |
-56% 99.5 kB
|
-47% 33.0 kB
|
129x 5,246ms
|
| uglify-js.no-compress |
-55% 101.0 kB
|
-49% 32.2 kB
|
11x 484ms
|
| terser.no-compress |
-55% 101.3 kB
|
-49% 32.2 kB
|
13x 548ms
|
| swc |
-40% 134.7 kB
|
-39% 38.3 kB
|
1x 64ms
|
| google-closure-compiler.advanced Failed | — | — | — |
Want to see more projects listed? PRs welcome!
🥇 Results
Best minification performance
UglifyJS takes first place for minification performance, winning 6/8 races and only losing to Google Closure Compiler by less than 9 kB! What's even more impressive is that it's still written in ES5 but can handle ES6 up to ES2020.
Terser takes a very close second, only short by at most by 1~2%. Terser is a fork of uglify-es and comes with support for ES6+.
Fastest minifier
esbuild runs 10x+ laps around everyone else! The Go-lang JS minifier/bundler is a beast of its own. Not only is it insanely fast, but demonstrates very competitive minification abilities, usually performing just as well as Terser while supporting cutting-edge ESNext syntax.
⚡️ Pro Tip: Harness the speed of esbuild in your Webpack build for minification (and even transpilation) with esbuild-loader.
Definitely keep an eye out for swc, the JS compiler written in Rust. It's also blazing fast and rumor has it they're stepping up their minification.
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