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minification benchmarks

What's the best JavaScript minifier?

This project benchmarks the following minifiers:

Benchmarks last updated on Jun 12, 2024.


🙋‍♂️ Why?

  1. To help you pick a minifier that fits your needs
  2. To promote JS minifiers and document their performances
  3. To encourage healthy competition and improvement amongst minifiers

👟 Methodology

  • Each minifier is executed in its own process with a 10s timeout
  • Artifact integrity is verified by a test before and after minification
  • Minifier upgrade PRs are automated via WhiteSource Renovate
  • Benchmarks are updated on every PR via GitHub Actions

⏱ Metrics

Minifiers are ranked by smallest minzipped size.

Minified size

Size of the minified output.

Minzipped size

Size of the minified output with Gzip compression.

For minifiers, this measures how compressable the output is.

For users, this measures network transfer size, which is usually the metric that matters most.

Time

How long minification took (average of 5 runs). Each time is annotated with a multiplier relative to the fastest minifier.

📋 Results

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "react v17.0.2"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 19385
	bar [19385,8173,8177,8193,8317,8448,8543,8631,8651,8668,8746,11040]
Artifact Original size Gzip size
react v17.0.2 (Source) 72.13 kB 19.39 kB
Minifier Minified size Minzipped size Time
1. @swc/core -68% 22.87 kB 🏆-58% 8.17 kB 8x 21 ms
2. uglify-js 🏆-69% 22.66 kB -58% 8.18 kB 199x 479 ms
3. google-closure-compiler -68% 22.83 kB -58% 8.19 kB 1359x 3,269 ms
4. terser -68% 23.14 kB -57% 8.32 kB 112x 269 ms
5. babel-minify -67% 23.60 kB -56% 8.45 kB 245x 590 ms
6. esbuild -67% 23.70 kB -56% 8.54 kB 5x 14 ms
7. @tdewolff/minify -67% 23.53 kB -55% 8.63 kB 🏆 2 ms
8. bun -67% 24.01 kB -55% 8.65 kB 6x 15 ms
9. uglify-js (no compress) -65% 25.03 kB -55% 8.67 kB 37x 90 ms
10. terser (no compress) -65% 25.08 kB -55% 8.75 kB 49x 119 ms
11. tedivm/jshrink -43% 40.82 kB -43% 11.04 kB 43x 105 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "moment v2.29.1"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 36231
	bar [36231,18559,18686,18690,18910,19119,19334,19496,19569,19683,19850,24998]
Artifact Original size Gzip size
moment v2.29.1 (Source) 173.90 kB 36.23 kB
Minifier Minified size Minzipped size Time
1. uglify-js 🏆-67% 57.85 kB 🏆-49% 18.56 kB 210x 1,121 ms
2. @swc/core -67% 58.21 kB -48% 18.69 kB 9x 51 ms
3. terser -66% 59.14 kB -48% 18.69 kB 126x 673 ms
4. google-closure-compiler -66% 58.27 kB -48% 18.91 kB 724x 3,856 ms
5. babel-minify -66% 59.70 kB -47% 19.12 kB 256x 1,367 ms
6. esbuild -66% 59.82 kB -47% 19.33 kB 3x 20 ms
7. @tdewolff/minify -66% 59.95 kB -46% 19.50 kB 🏆 5 ms
8. uglify-js (no compress) -64% 62.50 kB -46% 19.57 kB 40x 218 ms
9. terser (no compress) -64% 63.15 kB -46% 19.68 kB 51x 276 ms
10. bun -64% 61.84 kB -45% 19.85 kB 3x 17 ms
11. tedivm/jshrink -44% 97.63 kB -31% 25.00 kB 46x 246 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "jquery v3.5.1"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 84498
	bar [84498,30870,30879,30912,31470,31470,31621,31799,31954,32630,33086,40879]
Artifact Original size Gzip size
jquery v3.5.1 (Source) 287.63 kB 84.50 kB
Minifier Minified size Minzipped size Time
1. @swc/core -69% 89.16 kB 🏆-63% 30.87 kB 10x 91 ms
2. uglify-js 🏆-69% 88.51 kB -63% 30.88 kB 181x 1,516 ms
3. terser -69% 89.54 kB -63% 30.91 kB 107x 898 ms
4. uglify-js (no compress) -67% 94.08 kB -63% 31.47 kB 37x 312 ms
5. @tdewolff/minify -69% 89.85 kB -63% 31.47 kB 🏆 8 ms
6. terser (no compress) -67% 94.55 kB -63% 31.62 kB 42x 352 ms
7. babel-minify -68% 92.10 kB -62% 31.80 kB 270x 2,255 ms
8. esbuild -69% 90.07 kB -62% 31.95 kB 4x 37 ms
9. bun -68% 92.56 kB -61% 32.63 kB 3x 28 ms
10. google-closure-compiler -68% 92.70 kB -61% 33.09 kB 523x 4,363 ms
11. tedivm/jshrink -50% 144.14 kB -52% 40.88 kB 37x 315 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "vue v2.6.12"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 89668
	bar [89668,42478,42939,42939,43925,44230,44368,44376,44450,44679,45340,57169]
Artifact Original size Gzip size
vue v2.6.12 (Source) 342.15 kB 89.67 kB
Minifier Minified size Minzipped size Time
1. @swc/core -66% 115.47 kB 🏆-53% 42.48 kB 11x 128 ms
2. terser -66% 116.83 kB -52% 42.94 kB 96x 1,089 ms
3. uglify-js 🏆-67% 114.00 kB -52% 42.94 kB 183x 2,065 ms
4. babel-minify -66% 117.90 kB -51% 43.93 kB 220x 2,476 ms
5. google-closure-compiler -66% 115.61 kB -51% 44.23 kB 419x 4,717 ms
6. esbuild -65% 118.14 kB -51% 44.37 kB 3x 42 ms
7. @tdewolff/minify -66% 117.81 kB -51% 44.38 kB 🏆 11 ms
8. uglify-js (no compress) -63% 126.14 kB -50% 44.45 kB 32x 367 ms
9. terser (no compress) -63% 126.58 kB -50% 44.68 kB 38x 435 ms
10. bun -64% 121.70 kB -49% 45.34 kB 2x 30 ms
11. tedivm/jshrink -42% 197.36 kB -36% 57.17 kB 36x 416 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "lodash v4.17.21"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 96690
	bar [96690,24659,24972,25180,25186,25503,25862,26200,26221,26469,26498,36327]
Artifact Original size Gzip size
lodash v4.17.21 (Source) 544.09 kB 96.69 kB
Minifier Minified size Minzipped size Time
1. uglify-js 🏆-87% 68.24 kB 🏆-74% 24.66 kB 139x 1,630 ms
2. google-closure-compiler -86% 73.47 kB -74% 24.97 kB 395x 4,633 ms
3. @swc/core -87% 69.84 kB -74% 25.18 kB 9x 112 ms
4. terser -87% 70.67 kB -74% 25.19 kB 78x 921 ms
5. babel-minify -87% 72.37 kB -74% 25.50 kB 165x 1,940 ms
6. uglify-js (no compress) -86% 74.61 kB -73% 25.86 kB 28x 336 ms
7. esbuild -87% 72.48 kB -73% 26.20 kB 2x 29 ms
8. terser (no compress) -86% 75.29 kB -73% 26.22 kB 32x 376 ms
9. bun -86% 74.11 kB -73% 26.47 kB 1x 22 ms
10. @tdewolff/minify -87% 71.90 kB -73% 26.50 kB 🏆 12 ms
11. tedivm/jshrink -73% 148.78 kB -62% 36.33 kB 28x 328 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "d3 v6.3.1"
	x-axis ["Original",1,2,3,4,5,6,7,8,9]
	y-axis "Gzip size" 0 --> 130686
	bar [130686,87040,87283,88319,88343,89156,89891,90800,92374,94121]
Artifact Original size Gzip size
d3 v6.3.1 (Source) 555.77 kB 130.69 kB
Minifier Minified size Minzipped size Time
1. uglify-js 🏆-53% 263.76 kB 🏆-33% 87.04 kB 110x 3,862 ms
2. @swc/core -52% 265.27 kB -33% 87.28 kB 8x 284 ms
3. uglify-js (no compress) -50% 275.35 kB -32% 88.32 kB 20x 708 ms
4. terser -52% 267.90 kB -32% 88.34 kB 65x 2,267 ms
5. terser (no compress) -50% 276.47 kB -32% 89.16 kB 29x 1,013 ms
6. @tdewolff/minify -51% 269.93 kB -31% 89.89 kB 🏆 35 ms
7. esbuild -51% 270.13 kB -31% 90.80 kB 2x 73 ms
8. bun -51% 273.43 kB -29% 92.37 kB 1x 43 ms
9. google-closure-compiler -51% 270.30 kB -28% 94.12 kB 204x 7,110 ms
10. babel-minify ❌ Minification ❌ ❌ -
11. tedivm/jshrink ❌ Minification ❌ ❌ - 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "terser v5.30.3"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10]
	y-axis "Gzip size" 0 --> 193763
	bar [193763,123068,123276,123502,124428,124609,124900,126562,126706,127551,145178]
Artifact Original size Gzip size
terser v5.30.3 (Source) 1.01 MB 193.76 kB
Minifier Minified size Minzipped size Time
1. @swc/core -55% 455.58 kB 🏆-36% 123.07 kB 7x 245 ms
2. uglify-js -55% 451.54 kB -36% 123.28 kB 113x 3,637 ms
3. terser -55% 458.31 kB -36% 123.50 kB 68x 2,197 ms
4. terser (no compress) -53% 474.40 kB -36% 124.43 kB 30x 974 ms
5. uglify-js (no compress) -53% 472.16 kB -36% 124.61 kB 24x 787 ms
6. @tdewolff/minify -55% 456.70 kB -36% 124.90 kB 🏆 32 ms
7. google-closure-compiler 🏆-56% 439.95 kB -35% 126.56 kB 207x 6,631 ms
8. esbuild -55% 458.89 kB -35% 126.71 kB 1x 63 ms
9. bun -54% 466.95 kB -34% 127.55 kB 1x 41 ms
10. tedivm/jshrink -37% 633.71 kB -25% 145.18 kB 37x 1,185 ms
11. babel-minify ❌ Minification ❌ ❌ - 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "three v0.124.0"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10]
	y-axis "Gzip size" 0 --> 248267
	bar [248267,158374,158982,159729,162998,163036,163198,163725,164737,166442,193471]
Artifact Original size Gzip size
three v0.124.0 (Source) 1.25 MB 248.27 kB
Minifier Minified size Minzipped size Time
1. @swc/core -48% 642.91 kB 🏆-36% 158.37 kB 7x 374 ms
2. uglify-js 🏆-49% 642.31 kB -36% 158.98 kB 98x 4,870 ms
3. terser -48% 653.99 kB -36% 159.73 kB 59x 2,937 ms
4. google-closure-compiler -48% 644.45 kB -34% 163.00 kB 165x 8,208 ms
5. uglify-js (no compress) -46% 674.49 kB -34% 163.04 kB 19x 989 ms
6. terser (no compress) -46% 675.50 kB -34% 163.20 kB 26x 1,311 ms
7. esbuild -48% 646.76 kB -34% 163.73 kB 1x 91 ms
8. @tdewolff/minify -48% 644.55 kB -34% 164.74 kB 1x 50 ms
9. bun -47% 662.50 kB -33% 166.44 kB 🏆 50 ms
10. tedivm/jshrink -24% 952.01 kB -22% 193.47 kB 30x 1,519 ms
11. babel-minify ❌ Timed out - - ⚠️ +10,000 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "victory v35.8.4"
	x-axis ["Original",1,2,3,4,5,6,7,8]
	y-axis "Gzip size" 0 --> 309942
	bar [309942,157861,158090,158718,165131,166386,167579,181071,182626]
Artifact Original size Gzip size
victory v35.8.4 (Source) 2.13 MB 309.94 kB
Minifier Minified size Minzipped size Time
1. @swc/core -67% 707.22 kB 🏆-49% 157.86 kB 8x 535 ms
2. uglify-js 🏆-67% 697.60 kB -49% 158.09 kB 104x 6,251 ms
3. terser -66% 715.59 kB -49% 158.72 kB 66x 3,996 ms
4. @tdewolff/minify -66% 718.73 kB -47% 165.13 kB 🏆 60 ms
5. terser (no compress) -64% 759.34 kB -46% 166.39 kB 26x 1,596 ms
6. uglify-js (no compress) -65% 756.53 kB -46% 167.58 kB 22x 1,324 ms
7. esbuild -66% 724.14 kB -42% 181.07 kB 2x 124 ms
8. bun -66% 727.99 kB -41% 182.63 kB 1x 71 ms
9. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
10. babel-minify ❌ Minification ❌ ❌ -
11. tedivm/jshrink ❌ Post-validation ❌ ❌ - 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "echarts v5.1.1"
	x-axis ["Original",1,2,3,4,5,6,7]
	y-axis "Gzip size" 0 --> 684611
	bar [684611,320244,322106,330736,331412,331563,331791,337702]
Artifact Original size Gzip size
echarts v5.1.1 (Source) 3.20 MB 684.61 kB
Minifier Minified size Minzipped size Time
1. @swc/core 🏆-69% 993.11 kB 🏆-53% 320.24 kB 8x 1,038 ms
2. terser -69% 1.00 MB -53% 322.11 kB 51x 6,046 ms
3. terser (no compress) -66% 1.07 MB -52% 330.74 kB 22x 2,656 ms
4. uglify-js (no compress) -67% 1.07 MB -52% 331.41 kB 14x 1,746 ms
5. esbuild -68% 1.01 MB -52% 331.56 kB 1x 204 ms
6. @tdewolff/minify -68% 1.01 MB -52% 331.79 kB 1x 129 ms
7. bun -68% 1.03 MB -51% 337.70 kB 🏆 117 ms
8. babel-minify ❌ Timed out - - ⚠️ +10,000 ms
9. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
10. uglify-js ❌ Timed out - - ⚠️ +10,000 ms
11. tedivm/jshrink ❌ Minification ❌ ❌ - 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "antd v4.16.1"
	x-axis ["Original",1,2,3,4,5,6,7]
	y-axis "Gzip size" 0 --> 825175
	bar [825175,452876,457817,472052,475480,478572,488279,491747]
Artifact Original size Gzip size
antd v4.16.1 (Source) 6.67 MB 825.18 kB
Minifier Minified size Minzipped size Time
1. @swc/core 🏆-68% 2.15 MB 🏆-45% 452.88 kB 8x 1,298 ms
2. terser -66% 2.25 MB -45% 457.82 kB 45x 6,833 ms
3. @tdewolff/minify -66% 2.30 MB -43% 472.05 kB 🏆 151 ms
4. terser (no compress) -64% 2.43 MB -42% 475.48 kB 20x 3,068 ms
5. uglify-js (no compress) -64% 2.42 MB -42% 478.57 kB 16x 2,445 ms
6. esbuild -65% 2.31 MB -41% 488.28 kB 1x 296 ms
7. bun -66% 2.30 MB -40% 491.75 kB 1x 155 ms
8. babel-minify ❌ Timed out - - ⚠️ +10,000 ms
9. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
10. tedivm/jshrink ❌ Timed out - - ⚠️ +10,000 ms
11. uglify-js ❌ Timed out - - ⚠️ +10,000 ms 
---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "typescript v4.9.5"
	x-axis ["Original",1,2,3,4,5]
	y-axis "Gzip size" 0 --> 1884998
	bar [1884998,852337,876535,876660,879301,915495]
Artifact Original size Gzip size
typescript v4.9.5 (Source) 10.95 MB 1.88 MB
Minifier Minified size Minzipped size Time
1. @swc/core 🏆-70% 3.31 MB 🏆-55% 852.34 kB 10x 2,663 ms
2. uglify-js (no compress) -68% 3.54 MB -53% 876.54 kB 14x 3,883 ms
3. @tdewolff/minify -69% 3.36 MB -53% 876.66 kB 🏆 264 ms
4. terser (no compress) -68% 3.53 MB -53% 879.30 kB 19x 5,228 ms
5. esbuild -68% 3.49 MB -51% 915.50 kB 1x 507 ms
6. terser ❌ Timed out - - ⚠️ +10,000 ms
7. babel-minify ❌ Timed out - - ⚠️ +10,000 ms
8. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
9. uglify-js ❌ Timed out - - ⚠️ +10,000 ms
10. tedivm/jshrink ❌ Minification ❌ ❌ -
11. bun ❌ Post-validation ❌ ❌ -

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