https://github.com/j9t/minifier-benchmarks

Regularly updated benchmarks for web page minification
https://github.com/j9t/minifier-benchmarks
benchmarks comparisons css html html-minifier html-minifier-next htmlcompressor htmlnano js minify-html minimize svg swc
Last synced: about 2 months ago
JSON representation
Regularly updated benchmarks for web page minification
Host: GitHub
URL: https://github.com/j9t/minifier-benchmarks
Owner: j9t
License: mit
Created: 2026-02-05T18:00:53.000Z (4 months ago)
Default Branch: main
Last Pushed: 2026-03-23T06:14:41.000Z (2 months ago)
Last Synced: 2026-03-30T03:46:14.094Z (about 2 months ago)
Topics: benchmarks, comparisons, css, html, html-minifier, html-minifier-next, htmlcompressor, htmlnano, js, minify-html, minimize, svg, swc
Language: JavaScript
Homepage:
Size: 266 KB
Stars: 3
Watchers: 0
Forks: 1
Open Issues: 1
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
Awesome Lists containing this project

README

          # Minifier Benchmarks

A collection of regularly updated benchmarks for HTML+ minifiers ([context](https://dev.to/j9t/on-the-need-for-neutral-maintained-minifier-metrics-5715)).

Two tests are run: One exclusively applying [HTML minification](#1-html-minification-compared) (with the most aggressive settings that do not impact conformance), the other [enabling all minification features](#2-maximum-minification-compared) the respective minifier offers (this is play—it’s not a fair comparison and may exceed project needs).

* **👩‍💻 Minifier user?** Compare HTML minifiers [by HTML minification effectiveness](#1-html-minification-compared), [by maximum effectiveness](#2-maximum-minification-compared) (all minification and tree-shaking options enabled), and by the respective processing times

* **🧑‍🏭 Minifier author?** [Add and configure your minifier and become a co-owner](https://github.com/j9t/minifier-benchmarks/compare)

* **💁 Innocent bystander?** [Please share observations and suggestions](https://github.com/j9t/minifier-benchmarks/issues/new)

## 0. Minifier Overview

| | [@swc/html](https://github.com/swc-project/swc) | [HTML Minifier Next](https://github.com/j9t/html-minifier-next) | [htmlcompressor.com](https://htmlcompressor.com/) | [htmlnano](https://github.com/posthtml/htmlnano) | [minify-html](https://github.com/wilsonzlin/minify-html) | [minimize](https://github.com/Swaagie/minimize) |

| --- | --- | --- | --- | --- | --- | --- |

| **Last npm update** | ![npm @swc/html](https://img.shields.io/npm/last-update/@swc/html) | ![npm HTML Minifier Next](https://img.shields.io/npm/last-update/html-minifier-next) | n/a | ![npm htmlnano](https://img.shields.io/npm/last-update/htmlnano) | ![npm minify-html](https://img.shields.io/npm/last-update/@minify-html/node) | ![npm minimize](https://img.shields.io/npm/last-update/minimize) |

| **Socket health status** | [![Socket @swc/html](https://badge.socket.dev/npm/package/@swc/html)](https://socket.dev/npm/package/@swc/html) | [![Socket HTML Minifier Next](https://badge.socket.dev/npm/package/html-minifier-next)](https://socket.dev/npm/package/html-minifier-next) | n/a | [![Socket htmlnano](https://badge.socket.dev/npm/package/htmlnano)](https://socket.dev/npm/package/htmlnano) | [![Socket minify-html](https://badge.socket.dev/npm/package/@minify-html/node)](https://socket.dev/npm/package/@minify-html/node) | [![Socket minimize](https://badge.socket.dev/npm/package/minimize)](https://socket.dev/npm/package/minimize) |

| **GitHub sponsors** | [![Sponsors @swc/html](https://img.shields.io/github/sponsors/swc-project)](https://github.com/sponsors/swc-project) | [![Sponsors HTML Minifier Next](https://img.shields.io/github/sponsors/j9t)](https://github.com/sponsors/j9t) | n/a | n/a | n/a | n/a |

## 1. HTML Minification Compared

| Site | Original Size (KB) | [@swc/html](https://github.com/swc-project/swc) | [HTML Minifier Next](https://github.com/j9t/html-minifier-next) | [htmlcompressor.com](https://htmlcompressor.com/) | [htmlnano](https://github.com/posthtml/htmlnano) | [minify-html](https://github.com/wilsonzlin/minify-html) | [minimize](https://github.com/Swaagie/minimize) |

| --- | --- | --- | --- | --- | --- | --- | --- |

| [Minifier Test](https://hell.meiert.org/core/html/minifier-test.html) | 31 | 26
(–17.2%) | ***25
(–19.6%)*** | 26
(–17%) | 26
(–16.5%) | 25
(–19.2%) | 26
(–16.3%) |

| [A List Apart](https://alistapart.com/) | 63 | 59
(–6.4%) | 57
(–8.9%) | 58
(–7.4%) | 58
(–8.3%) | ***57
(–8.9%)*** | 58
(–7.4%) |

| [Apple](https://www.apple.com/) | 248 | 238
(–4%) | ***232
(–6.4%)*** | 236
(–4.7%) | 235
(–5.2%) | 233
(–5.9%) | 236
(–4.9%) |

| [BBC](https://www.bbc.co.uk/) | 685 | 680
(–0.7%) | ***674
(–1.5%)*** | n/a | 678
(–0.9%) | 675
(–1.4%) | 679
(–0.8%) |

| [Bun](https://bun.sh/) | 461 | 451
(–2.2%) | ***441
(–4.2%)*** | n/a | 454
(–1.5%) | 452
(–2%) | 455
(–1.3%) |

| [CERN](https://home.cern/) | 151 | 93
(–38.5%) | ***81
(–46%)*** | 95
(–36.9%) | 91
(–39.3%) | 91
(–39.6%) | 93
(–38.6%) |

| [CSS-Tricks](https://css-tricks.com/) | 169 | 157
(–7.4%) | ***154
(–9%)*** | 156
(–7.9%) | 155
(–8.4%) | 154
(–8.9%) | 156
(–8%) |

| [DIN](https://www.din.de/) | 253 | 182
(–28.1%) | ***175
(–30.6%)*** | 183
(–27.6%) | 182
(–28%) | 179
(–29%) | 182
(–27.8%) |

| [DLR](https://www.dlr.de/) | 567 | 563
(–0.7%) | ***560
(–1.1%)*** | n/a | 562
(–0.8%) | 561
(–1%) | 564
(–0.5%) |

| [ECMAScript](https://tc39.es/ecma262/) | 7355 | 6761
(–8.1%) | ***6539
(–11.1%)*** | n/a | 6674
(–9.3%) | 6674
(–9.3%) | 6726
(–8.6%) |

| [EDRi](https://edri.org/) | 83 | 77
(–7.6%) | ***77
(–8.2%)*** | 78
(–6.6%) | 77
(–7.5%) | 77
(–8.1%) | 78
(–6.7%) |

| [EFF](https://www.eff.org/) | 54 | 49
(–8.1%) | ***47
(–11.9%)*** | 49
(–7.8%) | 48
(–10%) | 47
(–11.6%) | 48
(–9.7%) |

| [European Alternatives](https://european-alternatives.eu/) | 49 | 33
(–33.1%) | ***33
(–33.9%)*** | 33
(–32.9%) | 33
(–33.1%) | 33
(–33.7%) | 33
(–33.1%) |

| [FAZ](https://www.faz.net/aktuell/) | 1445 | 1402
(–3%) | ***1384
(–4.2%)*** | n/a | 1399
(–3.2%) | 1390
(–3.8%) | 1396
(–3.4%) |

| [French Tech](https://lafrenchtech.gouv.fr/) | 156 | 136
(–13%) | ***134
(–14%)*** | 136
(–13.1%) | 135
(–13.3%) | 134
(–14%) | 136
(–13.2%) |

| [Front-End Social](https://front-end.social/) | 36 | 34
(–3.7%) | 34
(–5.6%) | 35
(–3.1%) | 34
(–5.5%) | ***34
(–5.6%)*** | 35
(–3.1%) |

| [Frontend Dogma](https://frontenddogma.com/) | 219 | 227
(+3.7%) | 219
(0%) | ***218
(–0.2%)*** | 232
(+6.1%) | 218
(0%) | 237
(+8.4%) |

| [Google](https://www.google.com/) | 78 | 123
(+57.8%) | 78
(–0.6%) | 78
(–0.3%) | ***77
(–0.8%)*** | 78
(–0.5%) | 78
(–0.3%) |

| [Ground News](https://ground.news/) | 1511 | 1488
(–1.5%) | ***1448
(–4.2%)*** | n/a | 1494
(–1.1%) | 1486
(–1.6%) | 1498
(–0.9%) |

| [HTML 3.2](https://www.w3.org/TR/2018/SPSD-html32-20180315/) | 123 | 119
(–3%) | 119
(–3%) | 121
(–1.2%) | 124
(+0.9%) | ***119
(–3.2%)*** | 123
(+0.5%) |

| [HTML Living Standard](https://html.spec.whatwg.org/multipage/) | 149 | 152
(+1.8%) | ***148
(–0.6%)*** | 149
(–0.2%) | 153
(+2.6%) | 149
(–0.3%) | 155
(+3.8%) |

| [IETF](https://www.ietf.org/) | 83 | 34
(–58.5%) | ***33
(–60.7%)*** | 35
(–58%) | 34
(–59.1%) | 34
(–59.6%) | 34
(–58.5%) |

| [Igalia](https://www.igalia.com/) | 49 | 38
(–23.6%) | ***35
(–28.9%)*** | 37
(–24.7%) | 37
(–25.1%) | 37
(–25.6%) | 37
(–25.1%) |

| [Ladybird](https://ladybird.org/) | 24 | 23
(–4.6%) | ***22
(–7.3%)*** | 23
(–5.5%) | 23
(–6.1%) | 23
(–6.6%) | 23
(–5.6%) |

| [Leanpub](https://leanpub.com/) | 343 | 338
(–1.3%) | ***330
(–3.7%)*** | n/a | 338
(–1.3%) | 336
(–2%) | 337
(–1.7%) |

| [Legge Stanca](https://www.gazzettaufficiale.it/atto/serie_generale/caricaDettaglioAtto/originario?atto.dataPubblicazioneGazzetta=2004-01-17&atto.codiceRedazionale=004G0015&elenco30giorni=false) | 17 | 12
(–28.5%) | ***12
(–30.4%)*** | 12
(–27.3%) | 12
(–29.7%) | 12
(–30.2%) | 12
(–27.5%) |

| [Mastodon](https://mastodon.social/explore) | 34 | 33
(–3.5%) | ***32
(–5.3%)*** | 33
(–2.9%) | 32
(–5.2%) | 32
(–5.3%) | 33
(–3.1%) |

| [MDN](https://developer.mozilla.org/en-US/) | 110 | 67
(–39.1%) | ***64
(–41.6%)*** | 68
(–37.7%) | 68
(–38%) | 66
(–40.4%) | 68
(–38.2%) |

| [Mistral AI](https://mistral.ai/) | 349 | 341
(–2.5%) | ***339
(–3%)*** | n/a | 345
(–1.3%) | 340
(–2.6%) | 346
(–1.1%) |

| [Mondoweiss](https://mondoweiss.net/) | 406 | 403
(–0.6%) | ***386
(–4.8%)*** | n/a | 390
(–3.8%) | 389
(–4.1%) | 392
(–3.4%) |

| [Mozilla](https://www.mozilla.org/) | 47 | 37
(–21%) | 36
(–24.4%) | 37
(–22.2%) | 36
(–23.8%) | ***35
(–26.1%)*** | 36
(–23.1%) |

| [Nielsen Norman Group](https://www.nngroup.com/) | 102 | 85
(–16.5%) | ***84
(–17.4%)*** | 85
(–16.1%) | 86
(–15.7%) | 84
(–17.2%) | 86
(–15.7%) |

| [Opera](https://www.opera.com/) | 231 | 178
(–22.9%) | ***173
(–25.1%)*** | 176
(–23.7%) | 177
(–23.4%) | 175
(–24.3%) | 177
(–23.5%) |

| [OSCE](https://www.osce.org/) | 173 | 145
(–16%) | 143
(–17.2%) | 145
(–15.9%) | 145
(–15.7%) | ***143
(–17.3%)*** | 145
(–15.7%) |

| [Scrum Guide](https://scrumguides.org/scrum-guide.html) | 34 | 31
(–8.9%) | ***31
(–10.2%)*** | 32
(–7.3%) | 31
(–7.9%) | 31
(–10.1%) | 31
(–7.8%) |

| [Scrum.org](https://www.scrum.org/) | 209 | 179
(–14.5%) | ***177
(–15.4%)*** | 178
(–14.9%) | 178
(–14.8%) | 178
(–15.2%) | 179
(–14.7%) |

| [SELFHTML](https://wiki.selfhtml.org/) | 21 | 20
(–7.5%) | ***18
(–17.3%)*** | 18
(–13.6%) | 18
(–14.4%) | 18
(–16.7%) | 18
(–14.1%) |

| [SitePoint](https://www.sitepoint.com/) | 235 | 232
(–1.3%) | ***232
(–1.6%)*** | 234
(–0.7%) | 233
(–0.9%) | 233
(–1.1%) | 234
(–0.7%) |

| [Smashing Magazine](https://www.smashingmagazine.com/) | 280 | 281
(+0.2%) | ***279
(–0.6%)*** | 280
(–0.1%) | 280
(–0.2%) | 279
(–0.4%) | 280
(0%) |

| [Startup-Verband](https://startupverband.de/) | 44 | 33
(–26.2%) | ***32
(–29.1%)*** | 33
(–26.6%) | 32
(–27%) | 32
(–28.1%) | 33
(–26.3%) |

| [TAZ](https://taz.de/) | 450 | 426
(–5.4%) | ***405
(–10%)*** | n/a | 416
(–7.7%) | 415
(–7.9%) | 418
(–7.2%) |

| [TetraLogical](https://tetralogical.com/) | 60 | 54
(–10%) | ***54
(–10.4%)*** | 54
(–9.7%) | 54
(–9.8%) | 54
(–10.2%) | 54
(–9.7%) |

| [TPGi](https://www.tpgi.com/) | 181 | 166
(–8.2%) | ***163
(–9.7%)*** | 166
(–8.3%) | 164
(–9.2%) | 163
(–9.4%) | 166
(–8.3%) |

| [United Nations](https://www.un.org/en/) | 152 | 132
(–13.6%) | ***127
(–16.6%)*** | 132
(–13.7%) | 130
(–14.5%) | 129
(–15.2%) | 131
(–13.9%) |

| [UX Collective](https://uxdesign.cc/) | 97 | 138
(+42.8%) | ***94
(–2.7%)*** | 96
(–0.8%) | 96
(–1.1%) | 96
(–1.4%) | 96
(–0.9%) |

| [Vivaldi](https://vivaldi.com/) | 91 | 83
(–8.7%) | 81
(–10.7%) | 82
(–9.5%) | 82
(–9.8%) | ***81
(–10.8%)*** | 82
(–9.4%) |

| [W3C](https://www.w3.org/) | 50 | 41
(–18.8%) | ***40
(–20.9%)*** | 41
(–19.2%) | 40
(–19.5%) | 40
(–20.5%) | 41
(–19.1%) |

| [WordPress Blog](https://wordpress.com/blog/) | 201 | 185
(–7.6%) | ***182
(–9.1%)*** | 187
(–6.9%) | 185
(–7.5%) | 184
(–8.4%) | 187
(–6.7%) |

| **Sites processed (of sites overall)** |  | 48/48 | 48/48 | 38/48 | 48/48 | 48/48 | 48/48 |

| **Average processing time** |  | 31 ms | 42 ms | 754 ms | 35 ms | ***8 ms*** | 189 ms |

| **Average result (KB)** | 374 | 350
(–6.5%) | ***339
(–9.4%)*** | 363
(–3.1%) | 346
(–7.6%) | 344
(–8.1%) | 347
(–7.2%) |

## 2. Maximum Minification Compared

| Site | Original Size (KB) | [@swc/html](https://github.com/swc-project/swc) | [HTML Minifier Next](https://github.com/j9t/html-minifier-next) | [htmlcompressor.com](https://htmlcompressor.com/) | [htmlnano](https://github.com/posthtml/htmlnano) | [minify-html](https://github.com/wilsonzlin/minify-html) | [minimize](https://github.com/Swaagie/minimize) |

| --- | --- | --- | --- | --- | --- | --- | --- |

| [Minifier Test](https://hell.meiert.org/core/html/minifier-test.html) | 31 | 24
(–23.3%) | 23
(–25.5%) | 24
(–22.9%) | ***23
(–26.5%)*** | 23
(–25.3%) | 26
(–16.3%) |

| [A List Apart](https://alistapart.com/) | 63 | 57
(–9.6%) | 53
(–15.2%) | 56
(–10.2%) | ***39
(–37.6%)*** | 55
(–12.1%) | 58
(–7.4%) |

| [Apple](https://www.apple.com/) | 248 | 237
(–4.2%) | ***222
(–10.4%)*** | 236
(–4.8%) | 226
(–8.9%) | 233
(–5.9%) | 236
(–4.9%) |

| [BBC](https://www.bbc.co.uk/) | 685 | 644
(–6%) | ***629
(–8.1%)*** | n/a | 642
(–6.3%) | 639
(–6.7%) | 679
(–0.8%) |

| [Bun](https://bun.sh/) | 461 | 435
(–5.7%) | 420
(–8.8%) | n/a | ***374
(–18.9%)*** | 436
(–5.3%) | 455
(–1.3%) |

| [CERN](https://home.cern/) | 151 | 93
(–38.5%) | ***80
(–46.6%)*** | 95
(–36.9%) | 90
(–40.5%) | 90
(–40%) | 93
(–38.6%) |

| [CSS-Tricks](https://css-tricks.com/) | 169 | 149
(–12.2%) | 125
(–26.3%) | 150
(–11.2%) | ***115
(–32.3%)*** | 148
(–12.5%) | 156
(–8%) |

| [DIN](https://www.din.de/) | 253 | 175
(–30.7%) | 163
(–35.3%) | 176
(–30.5%) | ***136
(–46.3%)*** | 174
(–31.1%) | 182
(–27.8%) |

| [DLR](https://www.dlr.de/) | 567 | 532
(–6%) | 523
(–7.8%) | n/a | ***518
(–8.6%)*** | 525
(–7.4%) | 564
(–0.5%) |

| [ECMAScript](https://tc39.es/ecma262/) | 7355 | 6759
(–8.1%) | ***6536
(–11.1%)*** | n/a | 6671
(–9.3%) | 6672
(–9.3%) | 6726
(–8.6%) |

| [EDRi](https://edri.org/) | 83 | 74
(–11.1%) | 70
(–15.9%) | 76
(–9.5%) | ***54
(–34.7%)*** | 74
(–11.3%) | 78
(–6.7%) |

| [EFF](https://www.eff.org/) | 54 | 48
(–10.9%) | ***44
(–18%)*** | 48
(–10.1%) | 46
(–14.2%) | 47
(–12.6%) | 48
(–9.7%) |

| [European Alternatives](https://european-alternatives.eu/) | 49 | 33
(–33.2%) | ***31
(–37.7%)*** | 33
(–33%) | 31
(–37%) | 33
(–33.8%) | 33
(–33.1%) |

| [FAZ](https://www.faz.net/aktuell/) | 1445 | 1395
(–3.5%) | 1339
(–7.4%) | n/a | ***1267
(–12.3%)*** | 1384
(–4.2%) | 1396
(–3.4%) |

| [French Tech](https://lafrenchtech.gouv.fr/) | 156 | 130
(–17%) | 125
(–20%) | 130
(–16.5%) | ***55
(–65.1%)*** | 129
(–17.6%) | 136
(–13.2%) |

| [Front-End Social](https://front-end.social/) | 36 | 34
(–3.7%) | ***31
(–13.9%)*** | 35
(–3.1%) | 31
(–13.8%) | 34
(–5.6%) | 35
(–3.1%) |

| [Frontend Dogma](https://frontenddogma.com/) | 219 | 227
(+3.7%) | ***211
(–3.5%)*** | 218
(–0.2%) | 224
(+2.3%) | 218
(0%) | 237
(+8.4%) |

| [Google](https://www.google.com/) | 78 | 74
(–5%) | 73
(–5.8%) | 77
(–0.8%) | ***62
(–20%)*** | 75
(–3.7%) | 78
(–0.3%) |

| [Ground News](https://ground.news/) | 1511 | 1418
(–6.1%) | ***1344
(–11.1%)*** | n/a | 1393
(–7.8%) | 1416
(–6.3%) | 1498
(–0.9%) |

| [HTML 3.2](https://www.w3.org/TR/2018/SPSD-html32-20180315/) | 123 | 119
(–3.1%) | ***118
(–3.4%)*** | 121
(–1.3%) | 123
(+0.7%) | 119
(–3.3%) | 123
(+0.5%) |

| [HTML Living Standard](https://html.spec.whatwg.org/multipage/) | 149 | 152
(+1.8%) | ***148
(–0.7%)*** | 149
(–0.3%) | 153
(+2.5%) | 149
(–0.3%) | 155
(+3.8%) |

| [IETF](https://www.ietf.org/) | 83 | 34
(–58.8%) | ***32
(–61.5%)*** | 35
(–58.2%) | 33
(–59.9%) | 33
(–59.7%) | 34
(–58.5%) |

| [Igalia](https://www.igalia.com/) | 49 | 37
(–25%) | ***34
(–31.3%)*** | 37
(–25.5%) | 36
(–27.7%) | 36
(–26.9%) | 37
(–25.1%) |

| [Ladybird](https://ladybird.org/) | 24 | 23
(–4.6%) | ***22
(–8.7%)*** | 23
(–5.5%) | 22
(–7.7%) | 23
(–6.6%) | 23
(–5.6%) |

| [Leanpub](https://leanpub.com/) | 343 | 328
(–4.2%) | ***313
(–8.6%)*** | n/a | 319
(–6.8%) | 326
(–5%) | 337
(–1.7%) |

| [Legge Stanca](https://www.gazzettaufficiale.it/atto/serie_generale/caricaDettaglioAtto/originario?atto.dataPubblicazioneGazzetta=2004-01-17&atto.codiceRedazionale=004G0015&elenco30giorni=false) | 17 | 10
(–43.8%) | ***9
(–46.5%)*** | 10
(–42.7%) | 9
(–46.5%) | 10
(–40.5%) | 12
(–27.5%) |

| [Mastodon](https://mastodon.social/explore) | 34 | 32
(–4.9%) | ***29
(–15.2%)*** | 33
(–3.3%) | 29
(–15.1%) | 32
(–5.7%) | 33
(–3.1%) |

| [MDN](https://developer.mozilla.org/en-US/) | 110 | 67
(–39.2%) | 63
(–42.8%) | 68
(–37.8%) | ***51
(–53.9%)*** | 65
(–40.5%) | 68
(–38.2%) |

| [Mistral AI](https://mistral.ai/) | 349 | 317
(–9.2%) | ***301
(–13.8%)*** | n/a | 309
(–11.7%) | 316
(–9.6%) | 346
(–1.1%) |

| [Mondoweiss](https://mondoweiss.net/) | 406 | 382
(–5.8%) | 369
(–8.9%) | n/a | ***363
(–10.4%)*** | 378
(–6.9%) | 392
(–3.4%) |

| [Mozilla](https://www.mozilla.org/) | 47 | 37
(–21%) | ***33
(–30.4%)*** | 37
(–22.2%) | 33
(–29.5%) | 35
(–26.1%) | 36
(–23.1%) |

| [Nielsen Norman Group](https://www.nngroup.com/) | 102 | 84
(–17.2%) | ***60
(–41.2%)*** | 85
(–16.7%) | 61
(–40.5%) | 84
(–17.8%) | 86
(–15.7%) |

| [Opera](https://www.opera.com/) | 231 | 173
(–25%) | 147
(–36.5%) | 176
(–23.9%) | ***109
(–52.7%)*** | 170
(–26.3%) | 177
(–23.5%) |

| [OSCE](https://www.osce.org/) | 173 | 145
(–16%) | ***136
(–21.3%)*** | 145
(–15.9%) | 137
(–20.7%) | 143
(–17.4%) | 145
(–15.7%) |

| [Scrum Guide](https://scrumguides.org/scrum-guide.html) | 34 | 31
(–9%) | ***31
(–10.4%)*** | 32
(–7.3%) | 31
(–8.3%) | 31
(–10.1%) | 31
(–7.8%) |

| [Scrum.org](https://www.scrum.org/) | 209 | 179
(–14.5%) | ***174
(–16.8%)*** | 178
(–14.9%) | 175
(–16.5%) | 177
(–15.3%) | 179
(–14.7%) |

| [SELFHTML](https://wiki.selfhtml.org/) | 21 | 18
(–14.1%) | ***17
(–19%)*** | 18
(–14.3%) | 18
(–15.8%) | 18
(–17.5%) | 18
(–14.1%) |

| [SitePoint](https://www.sitepoint.com/) | 235 | 224
(–5%) | ***211
(–10.5%)*** | 233
(–1%) | 212
(–9.9%) | 224
(–4.8%) | 234
(–0.7%) |

| [Smashing Magazine](https://www.smashingmagazine.com/) | 280 | 280
(–0.3%) | 276
(–1.4%) | 280
(–0.1%) | ***266
(–5%)*** | 278
(–0.9%) | 280
(0%) |

| [Startup-Verband](https://startupverband.de/) | 44 | 33
(–26.3%) | ***31
(–30.7%)*** | 33
(–26.7%) | 32
(–28.7%) | 32
(–28.3%) | 33
(–26.3%) |

| [TAZ](https://taz.de/) | 450 | 406
(–9.8%) | ***380
(–15.6%)*** | n/a | 395
(–12.1%) | 405
(–10%) | 418
(–7.2%) |

| [TetraLogical](https://tetralogical.com/) | 60 | 54
(–10.2%) | ***50
(–16.9%)*** | 54
(–9.9%) | 50
(–16.5%) | 54
(–10.5%) | 54
(–9.7%) |

| [TPGi](https://www.tpgi.com/) | 181 | 136
(–24.9%) | 132
(–26.6%) | 142
(–21.6%) | ***117
(–35.3%)*** | 141
(–21.9%) | 166
(–8.3%) |

| [United Nations](https://www.un.org/en/) | 152 | 128
(–16.1%) | 114
(–25.4%) | 124
(–18.5%) | ***85
(–43.9%)*** | 126
(–17.6%) | 131
(–13.9%) |

| [UX Collective](https://uxdesign.cc/) | 97 | 90
(–7.1%) | ***88
(–9.5%)*** | 92
(–5.1%) | 88
(–8.9%) | 89
(–7.8%) | 96
(–0.9%) |

| [Vivaldi](https://vivaldi.com/) | 91 | 80
(–12.1%) | 73
(–20.1%) | 81
(–11.2%) | ***67
(–25.7%)*** | 79
(–12.7%) | 82
(–9.4%) |

| [W3C](https://www.w3.org/) | 50 | 39
(–22.6%) | ***36
(–28.9%)*** | 39
(–23%) | 36
(–27.5%) | 38
(–24.3%) | 41
(–19.1%) |

| [WordPress Blog](https://wordpress.com/blog/) | 201 | 164
(–18%) | 155
(–22.7%) | 174
(–13.2%) | ***138
(–31.2%)*** | 172
(–14.5%) | 187
(–6.7%) |

| **Sites processed (of sites overall)** |  | 48/48 | 48/48 | 38/48 | 48/48 | 48/48 | 48/48 |

| **Average processing time** |  | 35 ms | 62 ms | 1290 ms | 156 ms | ***11 ms*** | 189 ms |

| **Average result (KB)** | 374 | 340
(–9%) | 326
(–13%) | 361
(–3.5%) | ***323
(–13.7%)*** | 337
(–9.9%) | 347
(–7.2%) |

Benchmarks last updated: Apr 4, 2026

## Notes

* Minifiers:

  - htmlcompressor.com incorrectly converts no-break spaces to spaces which can give an impression of greater effectiveness (last confirmed Apr 4, 2026).

  - minify-html “invalidates” markup, notably by removing spaces in doctypes (``) (last confirmed Apr 4, 2026).

  - Minimize only minifies HTML.

  - [HTML Minifier Terser](https://github.com/terser/html-minifier-terser) is currently not included due to issues around whitespace collapsing and removal of code using modern CSS features, issues which appeared to distort the data.

* Calculation:

  - Calculations are done based on bytes, which are used to compare effectiveness.

  - Failed sites are not excluded from the calculation for the average result, but counted as unminified. This avoids test failures advantaging the respective minifier.

* Benchmarks are currently run manually (on a 2024 Apple Mac Mini) but may be automated in the future.
ecosyste.ms

Data

Tools

Indexes

Applications

Experiments

Awesome

https://github.com/j9t/minifier-benchmarks

Awesome Lists containing this project

README
