What's the best JavaScript minifier?
This project benchmarks the following minifiers:
Minifier | Version | Release date β |
---|---|---|
oxc-minify | 0.62.0 | 2025-04-02 |
@swc/core | 1.11.16 | 2025-04-01 |
bun | 1.2.8 | 2025-03-31 |
esbuild | 0.25.2 | 2025-03-30 |
@tdewolff/minify | 2.22.4 | 2025-03-25 |
terser | 5.39.0 | 2025-02-13 |
uglify-js | 3.19.3 | 2024-08-29 |
google-closure-compiler | 20240317.0.0 | 2024-03-19 |
babel-minify | 0.5.2 | 2022-05-06 |
tedivm/jshrink | 1.7.0 |
Benchmarks last updated on Apr 2, 2025.
- 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
- 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
Minifiers are ranked by smallest minzipped size.
Size of the minified output.
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.
How long minification took (average of 5 runs). Each time is annotated with a multiplier relative to the fastest minifier.
Tip
What's the verdict? βοΈ See the Minifier showdown
---
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 [19385,8177,8186,8193,8265,8448,8493,8543,8628,8661,8668,8746,11040]
Artifact | Original size | Gzip size | |
---|---|---|---|
react v17.0.2 (Source) | 72.13 kB |
19.39 kB |
|
Minifier | Minified size | Minzipped size | Time |
1. uglify-js | π-69% 22.64 kB |
π-58% 8.18 kB |
205x 497 ms |
2. @swc/core | -68% 22.81 kB |
-58% 8.19 kB |
6x 16 ms |
3. google-closure-compiler | -68% 22.83 kB |
-58% 8.19 kB |
1268x 3,070 ms |
4. terser | -68% 23.07 kB |
-57% 8.27 kB |
113x 275 ms |
5. babel-minify | -67% 23.60 kB |
-56% 8.45 kB |
267x 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 |
π 2 ms |
9. bun | -67% 23.99 kB |
-55% 8.66 kB |
6x 15 ms |
10. uglify-js (no compress) | -65% 25.03 kB |
-55% 8.67 kB |
37x 91 ms |
11. terser (no compress) | -65% 25.08 kB |
-55% 8.75 kB |
48x 118 ms |
12. tedivm/jshrink | -43% 40.82 kB |
-43% 11.04 kB |
50x 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 [36231,18568,18690,18748,18910,19119,19260,19334,19478,19569,19683,19857,24998]
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 | π-67% 57.73 kB |
π-49% 18.57 kB |
156x 1,149 ms |
2. terser | -66% 59.14 kB |
-48% 18.69 kB |
90x 668 ms |
3. @swc/core | -66% 58.43 kB |
-48% 18.75 kB |
5x 43 ms |
4. google-closure-compiler | -66% 58.27 kB |
-48% 18.91 kB |
511x 3,753 ms |
5. babel-minify | -66% 59.70 kB |
-47% 19.12 kB |
199x 1,465 ms |
6. oxc-minify | -66% 59.52 kB |
-47% 19.26 kB |
1x 8 ms |
7. esbuild | -66% 59.82 kB |
-47% 19.33 kB |
3x 23 ms |
8. @tdewolff/minify | -66% 59.87 kB |
-46% 19.48 kB |
π 7 ms |
9. uglify-js (no compress) | -64% 62.50 kB |
-46% 19.57 kB |
29x 215 ms |
10. terser (no compress) | -64% 63.15 kB |
-46% 19.68 kB |
36x 270 ms |
11. bun | -64% 61.84 kB |
-45% 19.86 kB |
2x 19 ms |
12. tedivm/jshrink | -44% 97.63 kB |
-31% 25.00 kB |
38x 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 [84498,30866,30903,30912,30970,31446,31470,31621,31799,31954,32653,33086,40879]
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% 89.17 kB |
π-63% 30.87 kB |
7x 66 ms |
2. uglify-js | π-69% 88.45 kB |
-63% 30.90 kB |
186x 1,593 ms |
3. terser | -69% 89.54 kB |
-63% 30.91 kB |
104x 891 ms |
4. oxc-minify | -69% 89.33 kB |
-63% 30.97 kB |
1x 13 ms |
5. @tdewolff/minify | -69% 89.68 kB |
-63% 31.45 kB |
π 9 ms |
6. uglify-js (no compress) | -67% 94.08 kB |
-63% 31.47 kB |
36x 314 ms |
7. terser (no compress) | -67% 94.55 kB |
-63% 31.62 kB |
41x 353 ms |
8. babel-minify | -68% 92.10 kB |
-62% 31.80 kB |
280x 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% 92.70 kB |
-61% 33.09 kB |
474x 4,056 ms |
12. tedivm/jshrink | -50% 144.14 kB |
-52% 40.88 kB |
42x 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 [89668,42727,42919,43036,43358,43925,44230,44354,44368,44450,44679,45400,57169]
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% 115.70 kB |
π-52% 42.73 kB |
6x 92 ms |
2. terser | -66% 116.80 kB |
-52% 42.92 kB |
77x 1,102 ms |
3. uglify-js | π-67% 113.80 kB |
-52% 43.04 kB |
154x 2,206 ms |
4. oxc-minify | -66% 117.25 kB |
-52% 43.36 kB |
1x 17 ms |
5. babel-minify | -66% 117.90 kB |
-51% 43.93 kB |
189x 2,696 ms |
6. google-closure-compiler | -66% 115.61 kB |
-51% 44.23 kB |
329x 4,686 ms |
7. @tdewolff/minify | -66% 117.67 kB |
-51% 44.35 kB |
π 14 ms |
8. esbuild | -65% 118.14 kB |
-51% 44.37 kB |
3x 43 ms |
9. uglify-js (no compress) | -63% 126.14 kB |
-50% 44.45 kB |
25x 364 ms |
10. terser (no compress) | -63% 126.58 kB |
-50% 44.68 kB |
31x 443 ms |
11. bun | -64% 121.50 kB |
-49% 45.40 kB |
2x 32 ms |
12. tedivm/jshrink | -42% 197.36 kB |
-36% 57.17 kB |
33x 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 [96690,24686,24972,25186,25240,25503,25862,25979,26200,26221,26498,26655,36327]
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 | π-87% 68.17 kB |
π-74% 24.69 kB |
140x 1,689 ms |
2. google-closure-compiler | -86% 73.47 kB |
-74% 24.97 kB |
367x 4,402 ms |
3. terser | -87% 70.67 kB |
-74% 25.19 kB |
78x 947 ms |
4. @swc/core | -87% 69.82 kB |
-74% 25.24 kB |
6x 76 ms |
5. babel-minify | -87% 72.37 kB |
-74% 25.50 kB |
173x 2,083 ms |
6. uglify-js (no compress) | -86% 74.61 kB |
-73% 25.86 kB |
27x 333 ms |
7. oxc-minify | -87% 71.38 kB |
-73% 25.98 kB |
π 12 ms |
8. esbuild | -87% 72.48 kB |
-73% 26.20 kB |
2x 35 ms |
9. terser (no compress) | -86% 75.29 kB |
-73% 26.22 kB |
31x 377 ms |
10. @tdewolff/minify | -87% 71.90 kB |
-73% 26.50 kB |
1x 14 ms |
11. bun | -87% 73.45 kB |
-72% 26.66 kB |
2x 25 ms |
12. tedivm/jshrink | -73% 148.78 kB |
-62% 36.33 kB |
30x 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 [130686,87016,87208,88087,88162,88319,89156,89882,90800,92395,94121]
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 | π-53% 263.56 kB |
π-33% 87.02 kB |
118x 3,927 ms |
2. @swc/core | -52% 265.22 kB |
-33% 87.21 kB |
6x 219 ms |
3. terser | -52% 267.77 kB |
-33% 88.09 kB |
68x 2,274 ms |
4. oxc-minify | -51% 270.84 kB |
-33% 88.16 kB |
1x 44 ms |
5. uglify-js (no compress) | -50% 275.35 kB |
-32% 88.32 kB |
21x 711 ms |
6. terser (no compress) | -50% 276.47 kB |
-32% 89.16 kB |
30x 1,011 ms |
7. @tdewolff/minify | -52% 269.35 kB |
-31% 89.88 kB |
π 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 48 ms |
10. google-closure-compiler | -51% 270.30 kB |
-28% 94.12 kB |
213x 7,048 ms |
11. babel-minify β Minification | β | β | - |
12. tedivm/jshrink β Minification | β | β | - |
---
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 [193763,122362,123291,123334,123482,124428,124609,124878,126562,126707,127653,145178]
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% 440.17 kB |
π-37% 122.36 kB |
1x 45 ms |
2. @swc/core | -55% 455.63 kB |
-36% 123.29 kB |
5x 190 ms |
3. uglify-js | -55% 451.19 kB |
-36% 123.33 kB |
110x 3,787 ms |
4. terser | -55% 458.29 kB |
-36% 123.48 kB |
63x 2,172 ms |
5. terser (no compress) | -53% 474.40 kB |
-36% 124.43 kB |
28x 967 ms |
6. uglify-js (no compress) | -53% 472.16 kB |
-36% 124.61 kB |
22x 778 ms |
7. @tdewolff/minify | -55% 456.58 kB |
-36% 124.88 kB |
π 34 ms |
8. google-closure-compiler | π-56% 439.95 kB |
-35% 126.56 kB |
192x 6,579 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 |
39x 1,341 ms |
12. babel-minify β Minification | β | β | - |
---
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 [248267,158768,159071,159198,160829,162998,163036,163198,163725,164610,166210,193471]
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% 643.07 kB |
π-36% 158.77 kB |
6x 319 ms |
2. uglify-js | π-49% 641.59 kB |
-36% 159.07 kB |
95x 5,046 ms |
3. terser | -48% 653.25 kB |
-36% 159.20 kB |
55x 2,934 ms |
4. oxc-minify | -48% 647.00 kB |
-35% 160.83 kB |
1x 70 ms |
5. google-closure-compiler | -48% 644.45 kB |
-34% 163.00 kB |
163x 8,569 ms |
6. uglify-js (no compress) | -46% 674.49 kB |
-34% 163.04 kB |
18x 994 ms |
7. terser (no compress) | -46% 675.50 kB |
-34% 163.20 kB |
24x 1,287 ms |
8. esbuild | -48% 646.76 kB |
-34% 163.73 kB |
1x 91 ms |
9. @tdewolff/minify | -48% 642.46 kB |
-34% 164.61 kB |
π 53 ms |
10. bun | -47% 655.93 kB |
-33% 166.21 kB |
1x 57 ms |
11. tedivm/jshrink | -24% 952.01 kB |
-22% 193.47 kB |
32x 1,715 ms |
12. babel-minify β 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 [309942,157435,157848,158706,162262,165014,166386,167579,181071,182671]
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 | π-67% 694.78 kB |
π-49% 157.44 kB |
118x 6,579 ms |
2. @swc/core | -67% 706.21 kB |
-49% 157.85 kB |
8x 467 ms |
3. terser | -66% 715.58 kB |
-49% 158.71 kB |
71x 3,977 ms |
4. oxc-minify | -66% 716.14 kB |
-48% 162.26 kB |
1x 102 ms |
5. @tdewolff/minify | -66% 717.07 kB |
-47% 165.01 kB |
π 56 ms |
6. terser (no compress) | -64% 759.34 kB |
-46% 166.39 kB |
28x 1,606 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 125 ms |
9. bun | -66% 727.90 kB |
-41% 182.67 kB |
1x 80 ms |
10. google-closure-compiler β Timed out | - | - | +10,000 ms |
11. babel-minify β Minification | β | β | - |
12. tedivm/jshrink β Post-validation | β | β | - |
---
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 [684611,321265,321987,324635,330736,331412,331563,331847,337934]
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 | π-69% 994.56 kB |
π-53% 321.27 kB |
7x 824 ms |
2. terser | -69% 1.00 MB |
-53% 321.99 kB |
51x 6,005 ms |
3. oxc-minify | -69% 1.01 MB |
-53% 324.64 kB |
1x 180 ms |
4. terser (no compress) | -66% 1.07 MB |
-52% 330.74 kB |
22x 2,649 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 192 ms |
7. @tdewolff/minify | -68% 1.01 MB |
-52% 331.85 kB |
π 118 ms |
8. bun | -68% 1.02 MB |
-51% 337.93 kB |
1x 132 ms |
9. babel-minify β Timed out | - | - | +10,000 ms |
10. google-closure-compiler β Timed out | - | - | +10,000 ms |
11. uglify-js β Timed out | - | - | +10,000 ms |
12. tedivm/jshrink β Minification | β | β | - |
---
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 [825175,452478,457786,463334,471730,475480,478572,488279,491833]
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 | π-68% 2.15 MB |
π-45% 452.48 kB |
8x 1,216 ms |
2. terser | -66% 2.25 MB |
-45% 457.79 kB |
48x 6,823 ms |
3. oxc-minify | -66% 2.28 MB |
-44% 463.33 kB |
1x 237 ms |
4. @tdewolff/minify | -66% 2.29 MB |
-43% 471.73 kB |
π 140 ms |
5. terser (no compress) | -64% 2.43 MB |
-42% 475.48 kB |
22x 3,111 ms |
6. uglify-js (no compress) | -64% 2.42 MB |
-42% 478.57 kB |
18x 2,525 ms |
7. esbuild | -65% 2.31 MB |
-41% 488.28 kB |
2x 304 ms |
8. bun | -66% 2.30 MB |
-40% 491.83 kB |
1x 182 ms |
9. babel-minify β Timed out | - | - | +10,000 ms |
10. google-closure-compiler β Timed out | - | - | +10,000 ms |
11. tedivm/jshrink β Timed out | - | - | +10,000 ms |
12. uglify-js β 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 [1884998,859210,860670,875806,876535,879301,915551]
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 | π-70% 3.31 MB |
π-54% 859.21 kB |
8x 2,205 ms |
2. oxc-minify | -69% 3.35 MB |
-54% 860.67 kB |
1x 450 ms |
3. @tdewolff/minify | -69% 3.35 MB |
-54% 875.81 kB |
π 263 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% 879.30 kB |
20x 5,318 ms |
6. esbuild | -68% 3.49 MB |
-51% 915.55 kB |
1x 490 ms |
7. terser β Timed out | - | - | +10,000 ms |
8. babel-minify β Timed out | - | - | +10,000 ms |
9. google-closure-compiler β Timed out | - | - | +10,000 ms |
10. uglify-js β Timed out | - | - | +10,000 ms |
11. tedivm/jshrink β Timed out | - | - | +10,000 ms |
12. bun β Post-validation | β | β | - |
Note
π€ This analysis is AI generated
The minification showdown is settled! JavaScript minifiers battled it out in terms of compression ratios and blazing speeds. Itβs time to declare the standout performers and crown the most impressive competitor. Let's break it down!
@swc/core takes the championship title! With a dazzling combination of the smallest gzip sizes on large codebases and lightning-fast processing times, it consistently topped critical rounds like "echarts" (47% reduction in 824 ms) and "antd" (55% reduction in 1,216 ms). Its performance remained exceptional across the board, providing reliability and efficiency for the average user.
For those who value size most, @swc/core is king. Its speed means no trade-off for projects of any scale, making it a universal pick for most scenarios.
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uglify-js: Our long-time veteran finished strong in size, regularly achieving the smallest gzip artifacts (e.g., "lodash" with 26% at 24.69 kB). However, its enormous processing time (e.g., over 6 seconds for "victory") makes it unwieldy in modern workflows.
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oxc-minify: A rising star! Its minification speed is nearly unrivaled, and sizes are competitive. For instance, it nailed "typescript" with 860.67 kB output in just 450 ms. Perfect for when speed is crucial.
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@tdewolff/minify: The sprinter that takes speed to new levels. Frequently the fastest in the pack, like the "react" round at an incredible 2 ms. Results were slightly larger, so itβs best suited for cases where time is money.
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terser: A respectable contender for balanced size and speed. While not the leader in either category, this dependable all-rounder may appeal to fans of its rich AST manipulation features.
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babel-minify: A fatal runtime error in "d3" disqualified it. Compatibility issues could lead to corrupted results.
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tedivm/jshrink: Similarly tripped up in "d3" and failed to handle intricate regular expressions. Its specialized use cases are not suitable for complex minifications.
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bun: Received a red card for failing post-validation in "typescript," outputting invalid code. Careful testing would be required before adoption.
The race was thrilling, and the participants gave it their all! Congratulations to all the contenders who made it through the roundsβeach has a niche and excels under the right conditions. Still, @swc/core swept this competition with grace, size optimization, and speed aplomb. Which tool will you adopt for your next project?