https://github.com/privatenumber/minification-benchmarks

🏃‍♂️🏃‍♀️🏃 JS minification benchmarks

Benchmarks are gathered on the following minifiers:

• babel-minify
• esbuild
• terser
• uglify-js

📋 Results

• 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
• Minzipped size measures how well the minified file compresses with Gzip
• Comments are not stripped because not all minifiers support this

---

d3 v5.16.0

• Size: 515.7 kB
• Gzip size: 121.4 kB

Minifier	Minified	Minzipped	Time
babel-minify	🏆 -53% 246.0 kB	-33% 82.3 kB	8,470.73ms
uglify-js	-53% 246.6 kB	🏆 -34% 80.8 kB	6,254.75ms
terser	-52% 248.8 kB	-33% 81.7 kB	4,223.79ms
esbuild	-52% 251.2 kB	-31% 84.2 kB	🏆 92.71ms
uglify-js.no-compress	-51% 255.5 kB	-33% 82.2 kB	951.61ms
terser.no-compress	-51% 255.9 kB	-32% 82.8 kB	2,109.97ms

---

jquery v3.5.1

• Size: 287.6 kB
• Gzip size: 84.7 kB

Minifier	Minified	Minzipped	Time
uglify-js	🏆 -70% 88.9 kB	🏆 -64% 31.0 kB	2,544.63ms
terser	-69% 90.3 kB	-64% 31.2 kB	1,840.82ms
esbuild	-69% 90.6 kB	-63% 32.2 kB	🏆 53.13ms
babel-minify	-68% 92.4 kB	-63% 31.9 kB	4,445.48ms
uglify-js.no-compress	-68% 94.3 kB	-63% 31.6 kB	506.88ms
terser.no-compress	-67% 95.0 kB	-63% 31.9 kB	675.61ms

---

lodash v4.17.20

• Size: 542.6 kB
• Gzip size: 96.8 kB

Minifier	Minified	Minzipped	Time
uglify-js	🏆 -88% 69.5 kB	🏆 -75% 24.5 kB	4,782.25ms
terser	-87% 71.2 kB	-74% 25.2 kB	1,783.7ms
babel-minify	-87% 71.9 kB	-74% 25.3 kB	2,769.06ms
esbuild	-87% 72.7 kB	-73% 26.2 kB	🏆 37.14ms
uglify-js.no-compress	-87% 75.2 kB	-74% 25.8 kB	835.68ms
terser.no-compress	-87% 75.8 kB	-73% 26.3 kB	4,614.27ms

---

moment v2.29.1

• Size: 173.9 kB
• Gzip size: 36.5 kB

Minifier	Minified	Minzipped	Time
uglify-js	🏆 -67% 58.3 kB	🏆 -50% 18.5 kB	2,998.92ms
terser	-66% 59.2 kB	-49% 18.7 kB	1,488.4ms
babel-minify	-66% 59.2 kB	-49% 18.8 kB	2,956.88ms
esbuild	-66% 60.1 kB	-47% 19.4 kB	🏆 42.82ms
uglify-js.no-compress	-64% 63.0 kB	-47% 19.5 kB	608.02ms
terser.no-compress	-64% 63.3 kB	-47% 19.7 kB	619.25ms

---

react v16.14.0

• Size: 60.6 kB
• Gzip size: 16.5 kB

Minifier	Minified	Minzipped	Time
uglify-js	🏆 -69% 19.1 kB	🏆 -58% 6.9 kB	763.25ms
terser	-68% 19.6 kB	-57% 7.1 kB	457.61ms
babel-minify	-68% 19.9 kB	-57% 7.2 kB	1,225.52ms
esbuild	-67% 20.1 kB	-56% 7.3 kB	🏆 22.48ms
uglify-js.no-compress	-66% 21.0 kB	-56% 7.3 kB	138.18ms
terser.no-compress	-66% 21.2 kB	-55% 7.5 kB	196.26ms

---

terser v5.5.1

• Size: 860.3 kB
• Gzip size: 173.1 kB

Minifier	Minified	Minzipped	Time
terser	🏆 -53% 407.2 kB	🏆 -34% 114.6 kB	3,542.56ms
esbuild	-53% 409.2 kB	-33% 117.5 kB	🏆 93.07ms
terser.no-compress	-52% 420.8 kB	-34% 115.3 kB	1,564.05ms
babel-minify Failed	—	—	—
uglify-js Failed	—	—	—
uglify-js.no-compress Failed	—	—	—

---

three v0.123.0

• Size: 1.2 MB
• Gzip size: 248.7 kB

Minifier	Minified	Minzipped	Time
uglify-js	🏆 -49% 643.9 kB	🏆 -37% 158.9 kB	8,609.02ms
babel-minify	-49% 644.6 kB	-36% 161.3 kB	15,099.37ms
esbuild	-49% 647.0 kB	-35% 163.2 kB	🏆 138.66ms
terser	-48% 652.7 kB	-37% 159.0 kB	4,778.23ms
uglify-js.no-compress	-46% 674.6 kB	-35% 162.7 kB	1,604.78ms
terser.no-compress	-46% 674.8 kB	-35% 162.7 kB	2,049.4ms

---

vue v2.6.12

• Size: 223.2 kB
• Gzip size: 62.3 kB

Minifier	Minified	Minzipped	Time
uglify-js	🏆 -58% 94.2 kB	🏆 -50% 31.2 kB	1,974.65ms
terser	-58% 95.0 kB	-50% 31.3 kB	994.28ms
babel-minify	-58% 95.3 kB	-50% 31.5 kB	2,462.91ms
esbuild	-58% 95.4 kB	-49% 31.9 kB	🏆 34.23ms
uglify-js.no-compress	-55% 101.0 kB	-49% 32.2 kB	502.9ms
terser.no-compress	-55% 101.3 kB	-49% 32.2 kB	488.16ms