A collection of regularly updated benchmarks for HTML+ minifiers (context). Early release, benchmarks are still being cross-checked and fine-tuned.
Two tests are run: One exclusively applying HTML minification (with the most aggressive settings that do not impact conformance), the other enabling all minification features 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, by maximum effectiveness (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
- 💁 Innocent bystander? Please share observations and suggestions
| @swc/html | HTML Minifier Next | htmlcompressor.com | htmlnano | minify-html | minimize | |
|---|---|---|---|---|---|---|
| Last npm update |  |
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n/a |  |
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| Socket health status | n/a | |||||
| GitHub sponsors |  |
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n/a | n/a | n/a | n/a |
| Site | Original Size (KB) | @swc/html | HTML Minifier Next | htmlcompressor.com | htmlnano | minify-html | minimize |
|---|---|---|---|---|---|---|---|
| Minifier Test | 31 | 26 (–17.2%) | 26 (–17.4%) | 26 (–17%) | 26 (–16.4%) | 25 (–19.2%) | 26 (–16.3%) |
| A List Apart | 63 | 59 (–6.4%) | 57 (–8.9%) | 58 (–7.4%) | 58 (–8.2%) | 57 (–8.9%) | 58 (–7.4%) |
| Apple | 227 | 209 (–8.3%) | 202 (–11.1%) | 207 (–8.8%) | 206 (–9.2%) | 205 (–10.1%) | 207 (–8.9%) |
| BBC | 668 | 663 (–0.7%) | 658 (–1.4%) | n/a | 661 (–0.9%) | 658 (–1.4%) | 662 (–0.8%) |
| Bun | 461 | 451 (–2.2%) | 444 (–3.6%) | n/a | 454 (–1.5%) | 452 (–2%) | 455 (–1.3%) |
| CERN | 150 | 92 (–38.6%) | 81 (–46.1%) | 95 (–37%) | 91 (–39.3%) | 91 (–39.8%) | 92 (–38.7%) |
| CSS-Tricks | 155 | 143 (–7.6%) | 141 (–9%) | 141 (–8.8%) | 141 (–8.8%) | 140 (–9.3%) | 141 (–8.7%) |
| DeepSeek | 104 | 104 (–0.2%) | 97 (–6.2%) | 103 (–1%) | 102 (–1.4%) | 103 (–1.2%) | 103 (–1.1%) |
| DIN | 250 | 181 (–27.5%) | 176 (–29.6%) | 182 (–27.1%) | 182 (–27.2%) | 179 (–28.5%) | 182 (–27.2%) |
| DLR | 576 | 572 (–0.6%) | 570 (–1%) | n/a | 571 (–0.8%) | 570 (–1%) | 573 (–0.5%) |
| ECMAScript | 7306 | 6716 (–8.1%) | 6494 (–11.1%) | n/a | 6679 (–8.6%) | 6629 (–9.3%) | 6680 (–8.6%) |
| EDRi | 80 | 73 (–8%) | 73 (–8.3%) | 74 (–7%) | 74 (–7.7%) | 73 (–8.4%) | 74 (–7%) |
| EFF | 56 | 51 (–7.8%) | 49 (–11.4%) | 52 (–7.5%) | 50 (–9.6%) | 50 (–11.2%) | 51 (–9.4%) |
| European Alternatives | 48 | 32 (–32.5%) | 32 (–33.1%) | 32 (–32.3%) | 32 (–32.3%) | 32 (–33%) | 32 (–32.4%) |
| FAZ | 1594 | 1541 (–3.3%) | 1510 (–5.3%) | n/a | 1542 (–3.3%) | 1530 (–4%) | 1539 (–3.5%) |
| French Tech | 152 | 133 (–13%) | 131 (–14%) | 132 (–13.1%) | 132 (–13.3%) | 131 (–14%) | 132 (–13.1%) |
| Front-End Social | 36 | 34 (–3.7%) | 34 (–3.2%) | 35 (–3.1%) | 34 (–5.5%) | 34 (–5.6%) | 35 (–3.1%) |
| Frontend Dogma | 225 | 233 (+3.5%) | 225 (0%) | 225 (–0.2%) | 240 (+6.6%) | 225 (0%) | 244 (+8.3%) |
| 18 | 18 (–0.6%) | 18 (–2%) | 18 (–0.9%) | 18 (–2.3%) | 18 (–1.9%) | 18 (–0.9%) | |
| Ground News | 1634 | 1609 (–1.5%) | 1572 (–3.8%) | n/a | 1617 (–1%) | 1608 (–1.6%) | 1620 (–0.8%) |
| HTML 3.2 | 123 | 119 (–3%) | 119 (–3%) | 121 (–1.2%) | 124 (+1.1%) | 119 (–3.2%) | 123 (+0.5%) |
| HTML Living Standard | 149 | 152 (+1.8%) | 148 (–0.6%) | 149 (–0.2%) | 155 (+3.8%) | 149 (–0.3%) | 155 (+3.8%) |
| IETF | 82 | 34 (–58.8%) | 32 (–61%) | 34 (–58.4%) | 34 (–59%) | 33 (–60%) | 34 (–58.8%) |
| Igalia | 48 | 37 (–23.5%) | 34 (–28.9%) | 37 (–24.6%) | 37 (–24.5%) | 36 (–25.5%) | 36 (–25%) |
| Ladybird | 31 | 29 (–4.6%) | 28 (–9.9%) | 29 (–5.8%) | 29 (–5.7%) | 29 (–6.4%) | 29 (–5.9%) |
| Leanpub | 238 | 235 (–1.1%) | 231 (–3%) | 235 (–1.2%) | 235 (–1.4%) | 233 (–2%) | 233 (–2%) |
| Legge Stanca | 17 | 12 (–28.5%) | 12 (–30.4%) | 12 (–27.3%) | 12 (–29.6%) | 12 (–30.2%) | 12 (–27.5%) |
| Mastodon | 38 | 37 (–3.8%) | 37 (–3.4%) | 37 (–3.2%) | 36 (–5.8%) | 36 (–5.8%) | 37 (–3.3%) |
| MDN | 107 | 65 (–39%) | 63 (–40.8%) | 67 (–37.6%) | 66 (–38.7%) | 64 (–40.2%) | 67 (–38%) |
| Middle East Eye | 220 | 204 (–7.3%) | 195 (–11.2%) | 200 (–8.8%) | 200 (–8.9%) | 197 (–10.3%) | 199 (–9.3%) |
| Mistral AI | 377 | 369 (–2.1%) | 367 (–2.6%) | n/a | 372 (–1.2%) | 368 (–2.4%) | 373 (–0.9%) |
| Mondoweiss | 373 | 365 (–2.3%) | 354 (–5.2%) | n/a | 358 (–4.1%) | 357 (–4.4%) | 359 (–3.7%) |
| Mozilla | 47 | 37 (–21%) | 35 (–24.3%) | 36 (–22.2%) | 36 (–23.7%) | 35 (–26.1%) | 36 (–23.1%) |
| Nielsen Norman Group | 97 | 81 (–16.7%) | 80 (–17%) | 81 (–16.3%) | 82 (–15.8%) | 80 (–17.4%) | 81 (–16%) |
| Opera | 209 | 153 (–26.7%) | 150 (–28.2%) | 153 (–27%) | 152 (–27.1%) | 152 (–27.5%) | 152 (–27.3%) |
| OSCE | 171 | 144 (–16.2%) | 143 (–16.6%) | 144 (–16.1%) | 144 (–15.7%) | 141 (–17.4%) | 144 (–15.8%) |
| Scrum Guide | 34 | 31 (–8.9%) | 31 (–10.1%) | 32 (–7.3%) | 31 (–7.9%) | 31 (–10.1%) | 31 (–7.8%) |
| Scrum.org | 207 | 177 (–14.5%) | 175 (–15.2%) | 176 (–14.9%) | 177 (–14.5%) | 175 (–15.2%) | 176 (–14.7%) |
| SELFHTML | 21 | 20 (–7.5%) | 18 (–17.3%) | 18 (–13.5%) | 18 (–14.2%) | 18 (–16.7%) | 18 (–14.1%) |
| SitePoint | 481 | 475 (–1.3%) | 476 (–0.9%) | n/a | 476 (–0.9%) | 476 (–1.1%) | 477 (–0.7%) |
| Smashing Magazine | 292 | 293 (+0.2%) | 291 (–0.5%) | 292 (–0.1%) | 292 (–0.2%) | 291 (–0.4%) | 292 (+0%) |
| Startup-Verband | 44 | 32 (–26.2%) | 31 (–29.1%) | 32 (–26.6%) | 32 (–26.9%) | 31 (–28.1%) | 32 (–26.3%) |
| TAZ | 421 | 399 (–5.3%) | 379 (–9.9%) | n/a | 391 (–7.3%) | 389 (–7.6%) | 392 (–6.8%) |
| TetraLogical | 59 | 53 (–10%) | 54 (–9%) | 54 (–9.6%) | 54 (–9.5%) | 53 (–10.2%) | 54 (–9.6%) |
| TPGi | 174 | 178 (+2.1%) | 168 (–3.6%) | 172 (–1.6%) | 170 (–2.2%) | 170 (–2.7%) | 171 (–1.6%) |
| United Nations | 151 | 130 (–13.7%) | 125 (–16.7%) | 130 (–13.8%) | 129 (–14.6%) | 128 (–15.3%) | 130 (–14%) |
| UX Collective | 98 | 141 (+44.5%) | 95 (–2.6%) | 97 (–0.8%) | 96 (–1.2%) | 96 (–1.4%) | 97 (–0.9%) |
| Vivaldi | 93 | 85 (–8.8%) | 83 (–11%) | 84 (–9.8%) | 83 (–10%) | 83 (–11%) | 84 (–9.7%) |
| W3C | 51 | 41 (–18.8%) | 40 (–20.8%) | 41 (–19.2%) | 41 (–19.4%) | 40 (–20.4%) | 41 (–19.1%) |
| WordPress Blog | 194 | 179 (–7.8%) | 176 (–9%) | 180 (–7%) | 179 (–7.7%) | 177 (–8.7%) | 181 (–6.9%) |
| Sites processed (of sites overall) | 50/50 | 50/50 | 40/50 | 50/50 | 50/50 | 50/50 | |
| Average processing time | 31 ms | 41 ms | 768 ms | 31 ms | 8 ms | 182 ms | |
| Average result (KB) | 370 | 345 (–6.7%) | 335 (–9.3%) | 358 (–3.1%) | 343 (–7.2%) | 340 (–8%) | 343 (–7.1%) |
| Site | Original Size (KB) | @swc/html | HTML Minifier Next | htmlcompressor.com | htmlnano | minify-html | minimize |
|---|---|---|---|---|---|---|---|
| Minifier Test | 31 | 24 (–23.3%) | 23 (–25.4%) | 24 (–22.9%) | 23 (–26.2%) | 23 (–25.3%) | 26 (–16.3%) |
| A List Apart | 63 | 57 (–9.6%) | 53 (–15.2%) | 56 (–10.2%) | 39 (–37.5%) | 55 (–12.1%) | 58 (–7.4%) |
| Apple | 227 | 208 (–8.4%) | 192 (–15.4%) | 207 (–8.8%) | 197 (–13.2%) | 204 (–10.1%) | 207 (–8.9%) |
| BBC | 668 | 632 (–5.3%) | 618 (–7.4%) | n/a | 625 (–6.4%) | 627 (–6.1%) | 662 (–0.8%) |
| Bun | 461 | 435 (–5.7%) | 420 (–8.8%) | n/a | 374 (–18.9%) | 436 (–5.3%) | 455 (–1.3%) |
| CERN | 150 | 92 (–38.6%) | 80 (–46.8%) | 95 (–37%) | 89 (–40.5%) | 90 (–40.2%) | 92 (–38.7%) |
| CSS-Tricks | 155 | 139 (–10.3%) | 114 (–26.5%) | 138 (–11%) | 108 (–30.2%) | 137 (–11.6%) | 141 (–8.7%) |
| DeepSeek | 104 | 99 (–5%) | 83 (–19.7%) | 99 (–4.9%) | 89 (–14.5%) | 98 (–5.4%) | 103 (–1.1%) |
| DIN | 250 | 175 (–30.1%) | 163 (–34.7%) | 175 (–29.9%) | 136 (–45.7%) | 174 (–30.6%) | 182 (–27.2%) |
| DLR | 576 | 541 (–6.1%) | 531 (–7.9%) | n/a | 526 (–8.7%) | 533 (–7.5%) | 573 (–0.5%) |
| ECMAScript | 7306 | 6714 (–8.1%) | 6492 (–11.2%) | n/a | 6677 (–8.6%) | 6627 (–9.3%) | 6680 (–8.6%) |
| EDRi | 80 | 71 (–11.3%) | 67 (–16.3%) | 72 (–9.5%) | 53 (–33%) | 70 (–11.6%) | 74 (–7%) |
| EFF | 56 | 50 (–10.5%) | 46 (–17.4%) | 50 (–9.7%) | 48 (–13.7%) | 49 (–12.1%) | 51 (–9.4%) |
| European Alternatives | 48 | 32 (–32.5%) | 30 (–37.1%) | 32 (–32.4%) | 30 (–36.3%) | 32 (–33.1%) | 32 (–32.4%) |
| FAZ | 1594 | 1535 (–3.7%) | 1381 (–13.4%) | n/a | 1329 (–16.6%) | 1524 (–4.4%) | 1539 (–3.5%) |
| French Tech | 152 | 126 (–17.1%) | 122 (–20.1%) | 127 (–16.5%) | 51 (–66.2%) | 125 (–17.7%) | 132 (–13.1%) |
| Front-End Social | 36 | 34 (–3.7%) | 31 (–11.6%) | 35 (–3.1%) | 31 (–13.7%) | 34 (–5.6%) | 35 (–3.1%) |
| Frontend Dogma | 225 | 233 (+3.5%) | 217 (–3.6%) | 225 (–0.2%) | 231 (+2.6%) | 225 (0%) | 244 (+8.3%) |
| 18 | 17 (–7.9%) | 17 (–10.2%) | 18 (–1.7%) | 16 (–10.5%) | 18 (–5%) | 18 (–0.9%) | |
| Ground News | 1634 | 1534 (–6.1%) | 1457 (–10.8%) | n/a | 1508 (–7.7%) | 1533 (–6.2%) | 1620 (–0.8%) |
| HTML 3.2 | 123 | 119 (–3.1%) | 118 (–3.4%) | 121 (–1.3%) | 124 (+0.9%) | 119 (–3.3%) | 123 (+0.5%) |
| HTML Living Standard | 149 | 152 (+1.8%) | 148 (–0.7%) | 149 (–0.3%) | 155 (+3.7%) | 149 (–0.3%) | 155 (+3.8%) |
| IETF | 82 | 34 (–59.2%) | 31 (–61.8%) | 34 (–58.5%) | 33 (–59.8%) | 33 (–60.1%) | 34 (–58.8%) |
| Igalia | 48 | 36 (–24.9%) | 33 (–31.2%) | 36 (–25.5%) | 35 (–27.1%) | 35 (–26.9%) | 36 (–25%) |
| Ladybird | 31 | 29 (–4.6%) | 27 (–11.9%) | 29 (–5.8%) | 28 (–7.8%) | 29 (–6.4%) | 29 (–5.9%) |
| Leanpub | 238 | 226 (–5%) | 220 (–7.5%) | 235 (–1.2%) | 223 (–6.2%) | 224 (–5.9%) | 233 (–2%) |
| Legge Stanca | 17 | 10 (–43.8%) | 9 (–46.5%) | 10 (–42.7%) | 9 (–46.3%) | 10 (–40.5%) | 12 (–27.5%) |
| Mastodon | 38 | 36 (–5%) | 33 (–12.5%) | 37 (–3.5%) | 32 (–14.7%) | 36 (–6.2%) | 37 (–3.3%) |
| MDN | 107 | 65 (–39.1%) | 61 (–42.7%) | 67 (–37.7%) | 49 (–54%) | 64 (–40.3%) | 67 (–38%) |
| Middle East Eye | 220 | 204 (–7.3%) | 194 (–11.8%) | 200 (–8.8%) | 199 (–9.4%) | 197 (–10.3%) | 199 (–9.3%) |
| Mistral AI | 377 | 339 (–9.9%) | 327 (–13.2%) | n/a | 334 (–11.2%) | 338 (–10.3%) | 373 (–0.9%) |
| Mondoweiss | 373 | 352 (–5.7%) | 340 (–9%) | n/a | n/a | 347 (–6.9%) | 359 (–3.7%) |
| Mozilla | 47 | 37 (–21%) | 33 (–30.4%) | 36 (–22.2%) | 33 (–29.4%) | 35 (–26.1%) | 36 (–23.1%) |
| Nielsen Norman Group | 97 | 80 (–17.5%) | 58 (–40.5%) | 80 (–16.9%) | 59 (–39.5%) | 79 (–18%) | 81 (–16%) |
| Opera | 209 | 147 (–29.4%) | 134 (–35.9%) | 152 (–27.2%) | 100 (–52.3%) | 146 (–30%) | 152 (–27.3%) |
| OSCE | 171 | 144 (–16.2%) | 135 (–21.5%) | 144 (–16.1%) | 136 (–20.7%) | 141 (–17.6%) | 144 (–15.8%) |
| Scrum Guide | 34 | 31 (–9%) | 31 (–10.3%) | 32 (–7.3%) | 31 (–8.2%) | 31 (–10.1%) | 31 (–7.8%) |
| Scrum.org | 207 | 177 (–14.5%) | 172 (–16.9%) | 176 (–14.9%) | 173 (–16.3%) | 175 (–15.3%) | 176 (–14.7%) |
| SELFHTML | 21 | 18 (–14%) | 17 (–18.9%) | 18 (–14.2%) | 18 (–15.6%) | 18 (–17.5%) | 18 (–14.1%) |
| SitePoint | 481 | 458 (–4.8%) | 418 (–13.1%) | n/a | 420 (–12.6%) | 459 (–4.5%) | 477 (–0.7%) |
| Smashing Magazine | 292 | 291 (–0.3%) | 288 (–1.3%) | 292 (–0.1%) | 278 (–4.7%) | 290 (–0.9%) | 292 (+0%) |
| Startup-Verband | 44 | 32 (–26.3%) | 30 (–30.6%) | 32 (–26.8%) | 31 (–28.4%) | 31 (–28.3%) | 32 (–26.3%) |
| TAZ | 421 | 374 (–11.1%) | 350 (–16.8%) | n/a | 366 (–13.1%) | 377 (–10.5%) | 392 (–6.8%) |
| TetraLogical | 59 | 53 (–10.1%) | 49 (–16.9%) | 53 (–9.8%) | 50 (–16.1%) | 53 (–10.3%) | 54 (–9.6%) |
| TPGi | 174 | 165 (–5.2%) | 158 (–9.5%) | 171 (–1.8%) | 149 (–14.7%) | 165 (–5.6%) | 171 (–1.6%) |
| United Nations | 151 | 126 (–16.2%) | 112 (–25.6%) | 123 (–18.6%) | 84 (–44.1%) | 124 (–17.8%) | 130 (–14%) |
| UX Collective | 98 | 90 (–7.3%) | 88 (–9.7%) | 92 (–5.2%) | 89 (–9%) | 90 (–7.9%) | 97 (–0.9%) |
| Vivaldi | 93 | 81 (–12.1%) | 74 (–20.5%) | 82 (–11.4%) | n/a | 81 (–12.9%) | 84 (–9.7%) |
| W3C | 51 | 39 (–22.6%) | 36 (–28.9%) | 39 (–23%) | 37 (–27.4%) | 38 (–24.3%) | 41 (–19.1%) |
| WordPress Blog | 194 | 158 (–18.7%) | 149 (–23.4%) | 167 (–13.7%) | 134 (–30.7%) | 165 (–14.9%) | 181 (–6.9%) |
| Sites processed (of sites overall) | 50/50 | 50/50 | 40/50 | 48/50 | 50/50 | 50/50 | |
| Average processing time | 34 ms | 62 ms | 1216 ms | 145 ms | 10 ms | 179 ms | |
| Average result (KB) | 370 | 337 (–8.8%) | 320 (–13.4%) | 357 (–3.4%) | 321 (–13.1%) | 334 (–9.7%) | 343 (–7.1%) |
Benchmarks last updated: Feb 15, 2026
- Minifiers:
- Minimize only minifies HTML.
- 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.