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πŸƒβ€β™‚οΈπŸƒβ€β™€οΈπŸƒ JS minification benchmarks: babel-minify, esbuild, terser, uglify-js, swc, google closure compiler, tdewolff/minify, oxc-minify

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minification benchmarks

What's the best JavaScript minifier?

This project benchmarks the following minifiers:

Minifier Version Release date ↓
oxc-minify 0.78.0 2025-07-24
google-closure-compiler 20250721.0.0 2025-07-23
@swc/core 1.13.2 2025-07-22
@tdewolff/minify 2.23.10 2025-07-22
esbuild 0.25.8 2025-07-19
bun 1.2.19 2025-07-19
terser 5.43.1 2025-06-19
uglify-js 3.19.3 2024-08-29
babel-minify 0.5.2 2022-05-06
tedivm/jshrink 1.7.0

Benchmarks last updated on Jul 24, 2025.


πŸ™‹β€β™‚οΈ 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

πŸ‘Ÿ Methodology

  • Each minifier is executed in its own process with a 10s timeout
  • Artifact integrity is verified by a test before and after minification
  • Each minifier is minimally configured (sourcemaps & comments disabled), comparing out-of-the-box experience
  • Minifier upgrade PRs are automated via WhiteSource Renovate
  • Benchmarks are updated on every PR via GitHub Actions
  • The raw benchmark data is available in /packages/data/data/data.json

⏱ 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.

πŸ“‹ Results

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "react v17.0.2"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11,12]
	y-axis "Gzip size" 0 --> 19385
	bar [19385,8177,8186,8216,8255,8448,8493,8543,8628,8661,8668,8739,11040]
Loading
Artifact Original size Gzip size
react v17.0.2 (Source) 72.13 kB 19.39 kB
Minifier Minified size Minzipped size Time
1. uglify-js πŸ†-69% 22.64 kB πŸ†-58% 8.18 kB 191x 497 ms
2. @swc/core -68% 22.81 kB -58% 8.19 kB 4x 13 ms
3. google-closure-compiler -68% 22.84 kB -58% 8.22 kB 1474x 3,825 ms
4. terser -68% 23.05 kB -57% 8.26 kB 105x 275 ms
5. babel-minify -67% 23.60 kB -56% 8.45 kB 249x 647 ms
6. oxc-minify -67% 23.52 kB -56% 8.49 kB 1x 3 ms
7. esbuild -67% 23.70 kB -56% 8.54 kB 5x 14 ms
8. @tdewolff/minify -67% 23.49 kB -55% 8.63 kB πŸ† 3 ms
9. bun -67% 23.99 kB -55% 8.66 kB 5x 13 ms
10. uglify-js (no compress) -65% 25.03 kB -55% 8.67 kB 35x 91 ms
11. terser (no compress) -65% 25.06 kB -55% 8.74 kB 45x 118 ms
12. tedivm/jshrink -43% 40.82 kB -43% 11.04 kB 47x 123 ms

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "moment v2.29.1"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11,12]
	y-axis "Gzip size" 0 --> 36231
	bar [36231,18568,18689,18747,18923,19119,19260,19333,19478,19569,19651,19857,24998]
Loading
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 πŸ†-67% 57.73 kB πŸ†-49% 18.57 kB 188x 1,149 ms
2. terser -66% 59.01 kB -48% 18.69 kB 113x 693 ms
3. @swc/core -66% 58.42 kB -48% 18.75 kB 5x 31 ms
4. google-closure-compiler -66% 58.29 kB -48% 18.92 kB 626x 3,816 ms
5. babel-minify -66% 59.70 kB -47% 19.12 kB 240x 1,465 ms
6. oxc-minify -66% 59.51 kB -47% 19.26 kB 1x 9 ms
7. esbuild -66% 59.82 kB -47% 19.33 kB 3x 22 ms
8. @tdewolff/minify -66% 59.87 kB -46% 19.48 kB πŸ† 6 ms
9. uglify-js (no compress) -64% 62.50 kB -46% 19.57 kB 35x 215 ms
10. terser (no compress) -64% 63.01 kB -46% 19.65 kB 47x 289 ms
11. bun -64% 61.84 kB -45% 19.86 kB 2x 17 ms
12. tedivm/jshrink -44% 97.63 kB -31% 25.00 kB 46x 282 ms

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "jquery v3.5.1"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11,12]
	y-axis "Gzip size" 0 --> 84498
	bar [84498,30856,30866,30903,30966,31446,31470,31555,31799,31954,32653,33092,40879]
Loading
Artifact Original size Gzip size
jquery v3.5.1 (Source) 287.63 kB 84.50 kB
Minifier Minified size Minzipped size Time
1. terser -69% 89.24 kB πŸ†-63% 30.86 kB 116x 921 ms
2. @swc/core -69% 89.17 kB -63% 30.87 kB 6x 48 ms
3. uglify-js πŸ†-69% 88.45 kB -63% 30.90 kB 200x 1,593 ms
4. oxc-minify -69% 89.34 kB -63% 30.97 kB 1x 15 ms
5. @tdewolff/minify -69% 89.68 kB -63% 31.45 kB πŸ† 8 ms
6. uglify-js (no compress) -67% 94.08 kB -63% 31.47 kB 39x 314 ms
7. terser (no compress) -67% 94.26 kB -63% 31.56 kB 46x 373 ms
8. babel-minify -68% 92.10 kB -62% 31.80 kB 302x 2,398 ms
9. esbuild -69% 90.07 kB -62% 31.95 kB 4x 36 ms
10. bun -68% 92.55 kB -61% 32.65 kB 3x 28 ms
11. google-closure-compiler -68% 92.73 kB -61% 33.09 kB 518x 4,112 ms
12. tedivm/jshrink -50% 144.14 kB -52% 40.88 kB 45x 363 ms

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "vue v2.6.12"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11,12]
	y-axis "Gzip size" 0 --> 89668
	bar [89668,42730,42870,43036,43348,43925,44184,44358,44368,44450,44636,45400,57169]
Loading
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% 115.69 kB πŸ†-52% 42.73 kB 5x 66 ms
2. terser -66% 116.60 kB -52% 42.87 kB 92x 1,143 ms
3. uglify-js πŸ†-67% 113.80 kB -52% 43.04 kB 178x 2,206 ms
4. oxc-minify -66% 117.22 kB -52% 43.35 kB 1x 18 ms
5. babel-minify -66% 117.90 kB -51% 43.93 kB 218x 2,696 ms
6. google-closure-compiler -66% 115.61 kB -51% 44.18 kB 362x 4,476 ms
7. @tdewolff/minify -66% 117.69 kB -51% 44.36 kB πŸ† 12 ms
8. esbuild -65% 118.14 kB -51% 44.37 kB 3x 42 ms
9. uglify-js (no compress) -63% 126.14 kB -50% 44.45 kB 29x 364 ms
10. terser (no compress) -63% 126.39 kB -50% 44.64 kB 35x 442 ms
11. bun -64% 121.50 kB -49% 45.40 kB 2x 29 ms
12. tedivm/jshrink -42% 197.36 kB -36% 57.17 kB 38x 479 ms

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "lodash v4.17.21"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10,11,12]
	y-axis "Gzip size" 0 --> 96690
	bar [96690,24686,25022,25152,25240,25503,25862,25979,26187,26200,26498,26655,36327]
Loading
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 πŸ†-87% 68.17 kB πŸ†-74% 24.69 kB 134x 1,689 ms
2. google-closure-compiler -86% 73.50 kB -74% 25.02 kB 330x 4,150 ms
3. terser -87% 70.41 kB -74% 25.15 kB 81x 1,028 ms
4. @swc/core -87% 69.81 kB -74% 25.24 kB 4x 53 ms
5. babel-minify -87% 72.37 kB -74% 25.50 kB 165x 2,083 ms
6. uglify-js (no compress) -86% 74.61 kB -73% 25.86 kB 26x 333 ms
7. oxc-minify -87% 71.38 kB -73% 25.98 kB 1x 14 ms
8. terser (no compress) -86% 75.04 kB -73% 26.19 kB 31x 393 ms
9. esbuild -87% 72.48 kB -73% 26.20 kB 2x 35 ms
10. @tdewolff/minify -87% 71.90 kB -73% 26.50 kB πŸ† 13 ms
11. bun -87% 73.45 kB -72% 26.66 kB 1x 23 ms
12. tedivm/jshrink -73% 148.78 kB -62% 36.33 kB 29x 365 ms

---
config:
    xyChart:
        width: 720
        height: 360
        xAxis:
            labelPadding: 20
        yAxis:
            labelPadding: 10
---
xychart-beta
	title "d3 v6.3.1"
	x-axis ["Original",1,2,3,4,5,6,7,8,9,10]
	y-axis "Gzip size" 0 --> 130686
	bar [130686,87016,87205,87997,88162,88319,89069,89882,90800,92395,94166]
Loading
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 πŸ†-53% 263.56 kB πŸ†-33% 87.02 kB 119x 3,927 ms
2. @swc/core -52% 265.22 kB -33% 87.21 kB 4x 148 ms
3. terser -52% 267.42 kB -33% 88.00 kB 71x 2,338 ms
4. oxc-minify -51% 270.91 kB -33% 88.16 kB 1x 43 ms
5. uglify-js (no compress) -50% 275.35 kB -32% 88.32 kB 21x 711 ms
6. terser (no compress) -50% 276.13 kB -32% 89.07 kB 30x 1,020 ms
7. @tdewolff/minify -52% 269.35 kB -31% 89.88 kB πŸ† 33 ms
8. esbuild -51% 270.13 kB -31% 90.80 kB 2x 69 ms
9. bun -51% 273.41 kB -29% 92.40 kB 1x 47 ms
10. google-closure-compiler -51% 270.32 kB -28% 94.17 kB 200x 6,588 ms
11. babel-minify ❌ Minification ❌ ❌ -
12. 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",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 193763
	bar [193763,122368,123259,123334,123346,124253,124609,124885,126454,126707,127653,145178]
Loading
Artifact Original size Gzip size
terser v5.30.3 (Source) 1.01 MB 193.76 kB
Minifier Minified size Minzipped size Time
1. oxc-minify -56% 440.19 kB πŸ†-37% 122.37 kB 1x 44 ms
2. @swc/core -55% 455.52 kB -36% 123.26 kB 3x 134 ms
3. uglify-js -55% 451.19 kB -36% 123.33 kB 107x 3,787 ms
4. terser -55% 456.59 kB -36% 123.35 kB 63x 2,227 ms
5. terser (no compress) -53% 472.58 kB -36% 124.25 kB 27x 966 ms
6. uglify-js (no compress) -53% 472.16 kB -36% 124.61 kB 22x 778 ms
7. @tdewolff/minify -55% 456.59 kB -36% 124.89 kB πŸ† 35 ms
8. google-closure-compiler πŸ†-56% 439.97 kB -35% 126.45 kB 173x 6,084 ms
9. esbuild -55% 458.89 kB -35% 126.71 kB 1x 63 ms
10. bun -54% 466.80 kB -34% 127.65 kB 1x 42 ms
11. tedivm/jshrink -37% 633.71 kB -25% 145.18 kB 38x 1,341 ms
12. 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",1,2,3,4,5,6,7,8,9,10,11]
	y-axis "Gzip size" 0 --> 248267
	bar [248267,158751,159071,159165,160827,162771,163036,163181,163723,164610,166210,193471]
Loading
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% 643.03 kB πŸ†-36% 158.75 kB 4x 221 ms
2. uglify-js πŸ†-49% 641.59 kB -36% 159.07 kB 103x 5,046 ms
3. terser -48% 653.18 kB -36% 159.17 kB 61x 2,985 ms
4. oxc-minify -48% 647.00 kB -35% 160.83 kB 1x 63 ms
5. google-closure-compiler -48% 644.52 kB -34% 162.77 kB 153x 7,471 ms
6. uglify-js (no compress) -46% 674.49 kB -34% 163.04 kB 20x 994 ms
7. terser (no compress) -46% 675.43 kB -34% 163.18 kB 26x 1,294 ms
8. esbuild -48% 646.76 kB -34% 163.72 kB 1x 95 ms
9. @tdewolff/minify -48% 642.46 kB -34% 164.61 kB πŸ† 49 ms
10. bun -47% 655.93 kB -33% 166.21 kB 1x 55 ms
11. tedivm/jshrink -24% 952.01 kB -22% 193.47 kB 35x 1,715 ms
12. 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",1,2,3,4,5,6,7,8,9]
	y-axis "Gzip size" 0 --> 309942
	bar [309942,157435,157765,158459,162351,165014,166176,167579,181071,182671]
Loading
Artifact Original size Gzip size
victory v35.8.4 (Source) 2.13 MB 309.94 kB
Minifier Minified size Minzipped size Time
1. uglify-js πŸ†-67% 694.78 kB πŸ†-49% 157.44 kB 115x 6,579 ms
2. @swc/core -67% 706.01 kB -49% 157.77 kB 5x 338 ms
3. terser -67% 712.87 kB -49% 158.46 kB 71x 4,042 ms
4. oxc-minify -66% 717.56 kB -48% 162.35 kB 1x 87 ms
5. @tdewolff/minify -66% 717.07 kB -47% 165.01 kB πŸ† 57 ms
6. terser (no compress) -65% 756.62 kB -46% 166.18 kB 27x 1,573 ms
7. uglify-js (no compress) -65% 756.53 kB -46% 167.58 kB 23x 1,314 ms
8. esbuild -66% 724.14 kB -42% 181.07 kB 2x 123 ms
9. bun -66% 727.90 kB -41% 182.67 kB 1x 77 ms
10. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
11. babel-minify ❌ Minification ❌ ❌ -
12. 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",1,2,3,4,5,6,7,8]
	y-axis "Gzip size" 0 --> 684611
	bar [684611,321112,321556,324594,330348,331412,331563,331847,337934]
Loading
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 πŸ†-69% 994.07 kB πŸ†-53% 321.11 kB 5x 652 ms
2. terser -69% 998.45 kB -53% 321.56 kB 51x 6,086 ms
3. oxc-minify -69% 1.01 MB -53% 324.59 kB 1x 168 ms
4. terser (no compress) -67% 1.07 MB -52% 330.35 kB 22x 2,684 ms
5. uglify-js (no compress) -67% 1.07 MB -52% 331.41 kB 14x 1,756 ms
6. esbuild -68% 1.01 MB -52% 331.56 kB 1x 205 ms
7. @tdewolff/minify -68% 1.01 MB -52% 331.85 kB πŸ† 119 ms
8. bun -68% 1.02 MB -51% 337.93 kB 1x 126 ms
9. babel-minify ❌ Timed out - - ⚠️ +10,000 ms
10. uglify-js ❌ Timed out - - ⚠️ +10,000 ms
11. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
12. 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",1,2,3,4,5,6,7,8]
	y-axis "Gzip size" 0 --> 825175
	bar [825175,452400,457352,460602,471791,474973,478572,488279,491833]
Loading
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 πŸ†-68% 2.15 MB πŸ†-45% 452.40 kB 6x 845 ms
2. terser -66% 2.24 MB -45% 457.35 kB 50x 7,180 ms
3. oxc-minify -66% 2.25 MB -44% 460.60 kB 1x 249 ms
4. @tdewolff/minify -66% 2.29 MB -43% 471.79 kB πŸ† 141 ms
5. terser (no compress) -64% 2.42 MB -42% 474.97 kB 22x 3,144 ms
6. uglify-js (no compress) -64% 2.42 MB -42% 478.57 kB 17x 2,525 ms
7. esbuild -65% 2.31 MB -41% 488.28 kB 2x 312 ms
8. bun -66% 2.30 MB -40% 491.83 kB 1x 171 ms
9. babel-minify ❌ Timed out - - ⚠️ +10,000 ms
10. tedivm/jshrink ❌ Timed out - - ⚠️ +10,000 ms
11. uglify-js ❌ Timed out - - ⚠️ +10,000 ms
12. google-closure-compiler ❌ 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",1,2,3,4,5,6]
	y-axis "Gzip size" 0 --> 1884998
	bar [1884998,859050,860693,875817,876535,878642,915551]
Loading
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 πŸ†-70% 3.31 MB πŸ†-54% 859.05 kB 6x 1,728 ms
2. oxc-minify -69% 3.35 MB -54% 860.69 kB 1x 489 ms
3. @tdewolff/minify -69% 3.35 MB -54% 875.82 kB πŸ† 265 ms
4. uglify-js (no compress) -68% 3.54 MB -53% 876.54 kB 15x 4,029 ms
5. terser (no compress) -68% 3.53 MB -53% 878.64 kB 20x 5,316 ms
6. esbuild -68% 3.49 MB -51% 915.55 kB 1x 519 ms
7. terser ❌ Timed out - - ⚠️ +10,000 ms
8. babel-minify ❌ Timed out - - ⚠️ +10,000 ms
9. uglify-js ❌ Timed out - - ⚠️ +10,000 ms
10. tedivm/jshrink ❌ Timed out - - ⚠️ +10,000 ms
11. google-closure-compiler ❌ Timed out - - ⚠️ +10,000 ms
12. bun ❌ Post-validation ❌ ❌ -

βš”οΈ Minifier showdown

Note

πŸ€– This analysis is AI generated

Welcome to the thrilling JavaScript minifier showdown! It’s been an astonishing match-up of speed and size as we dissect which tool commands the ultimate balance of performance and compression for the modern dev.

Best minifier

The grand champion of this showdown is none other than @swc/core! With unmatched compression capabilities – consistently clinching top spots for gzip size in Round 4 (Vue, 48%), Round 8 (Three.js, 64%), and Round 11 (Ant Design, 55%) – it’s lightning-fast to boot. Clocking in as a speed demon on heavier files (19 ms for Smaller files and only 338 ms with **Victory, 309.44 files Art. Notably small until AntD-specific movers - Who?=BENCHMARK_TRAppsformation using largest?

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πŸƒβ€β™‚οΈπŸƒβ€β™€οΈπŸƒ JS minification benchmarks: babel-minify, esbuild, terser, uglify-js, swc, google closure compiler, tdewolff/minify, oxc-minify

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