^{minification benchmarks}

What's the best JavaScript minifier?

This project benchmarks the following minifiers:

babel-minify _v0.5.2
bun _v1.1.8
esbuild _v0.21.3
google-closure-compiler _{v20240317.0.0}
tedivm/jshrink _v1.7.0
@swc/core _v1.5.7
@tdewolff/minify _v2.20.24
terser _v5.31.0
uglify-js _v3.17.4

Benchmarks last updated on May 17, 2024.

🙋‍♂️ Why?

To help you pick a minifier that fits your needs
To promote JS minifiers and document their performances
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 [19385,8173,8184,8193,8317,8448,8543,8631,8651,8668,8746,11040]

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%`22.67 kB`	^-58%`8.18 kB`	^183x`459 ms`
3. google-closure-compiler	^-68%`22.83 kB`	^-58%`8.19 kB`	^1306x`3,269 ms`
4. terser	^-68%`23.14 kB`	^-57%`8.32 kB`	^109x`274 ms`
5. babel-minify	^-67%`23.60 kB`	^-56%`8.45 kB`	^235x`590 ms`
6. esbuild	^-67%`23.70 kB`	^-56%`8.54 kB`	^5x`13 ms`
7. @tdewolff/minify	^-67%`23.53 kB`	^-55%`8.63 kB`	^🏆`3 ms`
8. bun	^-67%`24.01 kB`	^-55%`8.65 kB`	^5x`15 ms`
9. uglify-js (no compress)	^-65%`25.03 kB`	^-55%`8.67 kB`	^33x`83 ms`
10. terser (no compress)	^-65%`25.08 kB`	^-55%`8.75 kB`	^45x`115 ms`
11. tedivm/jshrink	^-43%`40.82 kB`	^-43%`11.04 kB`	^41x`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 [36231,18567,18686,18694,18910,19119,19334,19496,19569,19683,19858,24998]

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%`57.87 kB`	^🏆-49%`18.57 kB`	^177x`1,029 ms`
2. @swc/core	^-67%`58.21 kB`	^-48%`18.69 kB`	^8x`52 ms`
3. terser	^-66%`59.16 kB`	^-48%`18.69 kB`	^115x`669 ms`
4. google-closure-compiler	^-66%`58.27 kB`	^-48%`18.91 kB`	^664x`3,856 ms`
5. babel-minify	^-66%`59.70 kB`	^-47%`19.12 kB`	^235x`1,367 ms`
6. esbuild	^-66%`59.82 kB`	^-47%`19.33 kB`	^3x`22 ms`
7. @tdewolff/minify	^-66%`59.95 kB`	^-46%`19.50 kB`	^🏆`6 ms`
8. uglify-js (no compress)	^-64%`62.50 kB`	^-46%`19.57 kB`	^33x`194 ms`
9. terser (no compress)	^-64%`63.15 kB`	^-46%`19.68 kB`	^47x`278 ms`
10. bun	^-64%`61.86 kB`	^-45%`19.86 kB`	^2x`17 ms`
11. tedivm/jshrink	^-44%`97.63 kB`	^-31%`25.00 kB`	^42x`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 [84498,30870,30891,30912,31470,31474,31621,31799,31954,32630,33086,40879]

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`	^9x`86 ms`
2. uglify-js	^🏆-69%`88.54 kB`	^-63%`30.89 kB`	^151x`1,401 ms`
3. terser	^-69%`89.54 kB`	^-63%`30.91 kB`	^95x`885 ms`
4. uglify-js (no compress)	^-67%`94.08 kB`	^-63%`31.47 kB`	^29x`274 ms`
5. @tdewolff/minify	^-69%`89.85 kB`	^-63%`31.47 kB`	^🏆`9 ms`
6. terser (no compress)	^-67%`94.55 kB`	^-63%`31.62 kB`	^39x`365 ms`
7. babel-minify	^-68%`92.10 kB`	^-62%`31.80 kB`	^244x`2,255 ms`
8. esbuild	^-69%`90.07 kB`	^-62%`31.95 kB`	^2x`27 ms`
9. bun	^-68%`92.56 kB`	^-61%`32.63 kB`	^2x`20 ms`
10. google-closure-compiler	^-68%`92.70 kB`	^-61%`33.09 kB`	^472x`4,363 ms`
11. tedivm/jshrink	^-50%`144.14 kB`	^-52%`40.88 kB`	^34x`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 [89668,42478,42939,42948,43925,44230,44368,44376,44450,44679,45340,57169]

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`	^9x`124 ms`
2. terser	^-66%`116.83 kB`	^-52%`42.94 kB`	^81x`1,103 ms`
3. uglify-js	^🏆-67%`113.98 kB`	^-52%`42.95 kB`	^143x`1,924 ms`
4. babel-minify	^-66%`117.90 kB`	^-51%`43.93 kB`	^184x`2,476 ms`
5. google-closure-compiler	^-66%`115.61 kB`	^-51%`44.23 kB`	^350x`4,717 ms`
6. esbuild	^-65%`118.14 kB`	^-51%`44.37 kB`	^2x`31 ms`
7. @tdewolff/minify	^-66%`117.81 kB`	^-51%`44.38 kB`	^🏆`13 ms`
8. uglify-js (no compress)	^-63%`126.14 kB`	^-50%`44.45 kB`	^25x`337 ms`
9. terser (no compress)	^-63%`126.58 kB`	^-50%`44.68 kB`	^32x`437 ms`
10. bun	^-64%`121.70 kB`	^-49%`45.34 kB`	^1x`23 ms`
11. tedivm/jshrink	^-42%`197.36 kB`	^-36%`57.17 kB`	^30x`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 [96690,24659,24972,25180,25186,25503,25862,26200,26221,26473,26498,36327]

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`	^132x`1,526 ms`
2. google-closure-compiler	^-86%`73.47 kB`	^-74%`24.97 kB`	^403x`4,633 ms`
3. @swc/core	^-87%`69.84 kB`	^-74%`25.18 kB`	^9x`114 ms`
4. terser	^-87%`70.67 kB`	^-74%`25.19 kB`	^80x`923 ms`
5. babel-minify	^-87%`72.37 kB`	^-74%`25.50 kB`	^169x`1,940 ms`
6. uglify-js (no compress)	^-86%`74.61 kB`	^-73%`25.86 kB`	^27x`315 ms`
7. esbuild	^-87%`72.48 kB`	^-73%`26.20 kB`	^3x`36 ms`
8. terser (no compress)	^-86%`75.29 kB`	^-73%`26.22 kB`	^33x`385 ms`
9. bun	^-86%`74.12 kB`	^-73%`26.47 kB`	^2x`24 ms`
10. @tdewolff/minify	^-87%`71.90 kB`	^-73%`26.50 kB`	^🏆`11 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 [130686,87114,87283,88319,88343,89156,89892,90800,92395,94121]

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%`263.91 kB`	^🏆-33%`87.11 kB`	^108x`3,555 ms`
2. @swc/core	^-52%`265.27 kB`	^-33%`87.28 kB`	^8x`285 ms`
3. uglify-js (no compress)	^-50%`275.35 kB`	^-32%`88.32 kB`	^19x`653 ms`
4. terser	^-52%`267.90 kB`	^-32%`88.34 kB`	^69x`2,276 ms`
5. terser (no compress)	^-50%`276.47 kB`	^-32%`89.16 kB`	^30x`1,003 ms`
6. @tdewolff/minify	^-51%`269.93 kB`	^-31%`89.89 kB`	^🏆`33 ms`
7. esbuild	^-51%`270.13 kB`	^-31%`90.80 kB`	^2x`67 ms`
8. bun	^-51%`273.63 kB`	^-29%`92.40 kB`	^1x`40 ms`
9. google-closure-compiler	^-51%`270.30 kB`	^-28%`94.12 kB`	^216x`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 [193763,123059,123351,123502,124428,124609,124900,126562,126706,127551,145178]

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%`123.06 kB`	^8x`253 ms`
2. uglify-js	^-55%`451.77 kB`	^-36%`123.35 kB`	^113x`3,368 ms`
3. terser	^-55%`458.31 kB`	^-36%`123.50 kB`	^72x`2,149 ms`
4. terser (no compress)	^-53%`474.40 kB`	^-36%`124.43 kB`	^32x`957 ms`
5. uglify-js (no compress)	^-53%`472.16 kB`	^-36%`124.61 kB`	^24x`718 ms`
6. @tdewolff/minify	^-55%`456.69 kB`	^-36%`124.90 kB`	^🏆`30 ms`
7. google-closure-compiler	^🏆-56%`439.95 kB`	^-35%`126.56 kB`	^224x`6,631 ms`
8. esbuild	^-55%`458.89 kB`	^-35%`126.71 kB`	^2x`63 ms`
9. bun	^-54%`466.96 kB`	^-34%`127.55 kB`	^1x`37 ms`
10. tedivm/jshrink	^-37%`633.71 kB`	^-25%`145.18 kB`	^40x`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 [248267,158374,158907,159729,162998,163036,163198,163725,164737,166483,193471]

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`	^8x`389 ms`
2. uglify-js	^🏆-49%`642.22 kB`	^-36%`158.91 kB`	^93x`4,534 ms`
3. terser	^-48%`653.99 kB`	^-36%`159.73 kB`	^59x`2,894 ms`
4. google-closure-compiler	^-48%`644.45 kB`	^-34%`163.00 kB`	^170x`8,208 ms`
5. uglify-js (no compress)	^-46%`674.49 kB`	^-34%`163.04 kB`	^19x`932 ms`
6. terser (no compress)	^-46%`675.50 kB`	^-34%`163.20 kB`	^26x`1,289 ms`
7. esbuild	^-48%`646.76 kB`	^-34%`163.73 kB`	^1x`90 ms`
8. @tdewolff/minify	^-48%`644.55 kB`	^-34%`164.74 kB`	^🏆`48 ms`
9. bun	^-47%`662.76 kB`	^-33%`166.48 kB`	^1x`49 ms`
10. tedivm/jshrink	^-24%`952.01 kB`	^-22%`193.47 kB`	^31x`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 [309942,157865,158218,158718,165131,166386,167579,181071,182659]

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%`157.87 kB`	^10x`569 ms`
2. uglify-js	^🏆-67%`702.67 kB`	^-49%`158.22 kB`	^109x`5,951 ms`
3. terser	^-66%`715.59 kB`	^-49%`158.72 kB`	^72x`3,925 ms`
4. @tdewolff/minify	^-66%`718.73 kB`	^-47%`165.13 kB`	^🏆`54 ms`
5. terser (no compress)	^-64%`759.34 kB`	^-46%`166.39 kB`	^28x`1,551 ms`
6. uglify-js (no compress)	^-65%`756.53 kB`	^-46%`167.58 kB`	^21x`1,190 ms`
7. esbuild	^-66%`724.14 kB`	^-42%`181.07 kB`	^2x`126 ms`
8. bun	^-66%`728.19 kB`	^-41%`182.66 kB`	^1x`68 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 [684611,320244,322106,330736,331412,331563,331791,337786]

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`	^10x`1,104 ms`
2. terser	^-69%`1.00 MB`	^-53%`322.11 kB`	^54x`5,965 ms`
3. terser (no compress)	^-66%`1.07 MB`	^-52%`330.74 kB`	^24x`2,692 ms`
4. uglify-js (no compress)	^-67%`1.07 MB`	^-52%`331.41 kB`	^15x`1,665 ms`
5. esbuild	^-68%`1.01 MB`	^-52%`331.56 kB`	^1x`197 ms`
6. @tdewolff/minify	^-68%`1.01 MB`	^-52%`331.79 kB`	^1x`117 ms`
7. bun	^-68%`1.03 MB`	^-51%`337.79 kB`	^🏆`110 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 [825175,452876,457817,472053,475480,478572,488279,491753]

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`	^10x`1,379 ms`
2. terser	^-66%`2.25 MB`	^-45%`457.82 kB`	^50x`6,683 ms`
3. @tdewolff/minify	^-66%`2.30 MB`	^-43%`472.05 kB`	^🏆`131 ms`
4. terser (no compress)	^-64%`2.43 MB`	^-42%`475.48 kB`	^23x`3,038 ms`
5. uglify-js (no compress)	^-64%`2.42 MB`	^-42%`478.57 kB`	^17x`2,285 ms`
6. esbuild	^-65%`2.31 MB`	^-41%`488.28 kB`	^2x`307 ms`
7. bun	^-66%`2.30 MB`	^-40%`491.75 kB`	^1x`152 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 [1884998,852337,876535,876675,879301,915495]

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`	^11x`2,799 ms`
2. uglify-js (no compress)	^-68%`3.54 MB`	^-53%`876.54 kB`	^8x`2,099 ms`
3. @tdewolff/minify	^-69%`3.36 MB`	^-53%`876.68 kB`	^🏆`248 ms`
4. terser (no compress)	^-68%`3.53 MB`	^-53%`879.30 kB`	^21x`5,209 ms`
5. esbuild	^-68%`3.49 MB`	^-51%`915.50 kB`	^2x`504 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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.vscode		.vscode
@types		@types
packages		packages
.editorconfig		.editorconfig
.gitignore		.gitignore
.nvmrc		.nvmrc
LICENSE		LICENSE
README.md		README.md
package.json		package.json
pnpm-lock.yaml		pnpm-lock.yaml
pnpm-workspace.yaml		pnpm-workspace.yaml
renovate.json		renovate.json
tsconfig.json		tsconfig.json

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privatenumber/minification-benchmarks

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minification benchmarks

🙋‍♂️ Why?

👟 Methodology

⏱ Metrics

Minified size

Minzipped size

Time

📋 Results

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^{minification benchmarks}