Websites Powered by Mermaid
2,477 websites tracked using Mermaid (JavaScript graphics) · mermaidjs.github.io
Mermaid is a JavaScript graphics library for rendering visuals and animation. Its official site is mermaidjs.github.io. PoweredBy tracks the websites that use Mermaid across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the javascript graphics ecosystem.
Usage trend
200
400
600
800
Jun 2018
Jul 2020
Aug 2022
Aug 2024
Sep 2026
Domains observed using Mermaid in each month's HTTP Archive crawl,
Jun 2018 to Sep 2026 · peak 728 in Nov 2025. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.9 s
INP 75 ms
CLS 0
TTFB 700 ms
Median site among 851 Mermaid sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
397
India
296
Japan
252
Germany
213
Brazil
196
United Kingdom
196
Indonesia
182
France
179
Sites using Mermaid by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Blogs and publishing | 0.04% | 10 |
| Government | 0.02% | 2 |
| Games | 0.02% | 1 |
| Education | 0.02% | 9 |
| Software and apps | 0.02% | 19 |
| Non-profit and religious | 0.01% | 1 |
| Arts and entertainment | <0.01% | 3 |
| Finance and insurance | <0.01% | 1 |
| News and media | <0.01% | 1 |
| Retail | <0.01% | 6 |
Share of each industry's websites with a detected stack that use Mermaid; industries come from what sites declare in their own structured data.
Top sites by authority
9+
2% · 9 of 372 sites
8+
<1% · 46 of 7,677 sites
7+
<1% · 87 of 45,712 sites
6+
<1% · 110 of 110,136 sites
5+
<1% · 137 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Mermaid in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Mermaid
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | mozilla.org | 9.48/10 | 41,800 | 5,538 | Mar 2021 |
| 2 | github.io | 9.43/10 | 1,800 | 1 | Aug 2018 |
| 3 | blogspot.com | 9.39/10 | - | - | Mar 2021 |
| 4 | apache.org | 9.21/10 | 35,700 | 6,177 | Nov 2021 |
| 5 | pages.dev | 9.14/10 | - | - | Feb 2023 |
| 6 | zendesk.com | 9.10/10 | 416,900 | 60,938 | May 2022 |
| 7 | vercel.app | 9.05/10 | - | - | Mar 2024 |
| 8 | readthedocs.io | 9.04/10 | - | - | Feb 2020 |
| 9 | netlify.app | 9.01/10 | 2 | 2 | Oct 2020 |
| 10 | service.gov.uk | 8.99/10 | - | - | Mar 2025 |
| 11 | samsung.com | 8.96/10 | 5,663,200 | 685,042 | May 2023 |
| 12 | usgs.gov | 8.95/10 | 3,088,500 | 314,649 | Nov 2022 |
| 13 | uchicago.edu | 8.92/10 | 63,700 | 10,331 | Aug 2026 |
| 14 | gov.ru | 8.91/10 | 2,700 | 216 | Sep 2026 |
| 15 | nvidia.com | 8.89/10 | 1,840,400 | 290,399 | Apr 2023 |
| 16 | ufl.edu | 8.84/10 | 241,500 | 3,277 | Jan 2025 |
| 17 | js.org | 8.82/10 | 2 | 5 | Jul 2022 |
| 18 | fc2.com | 8.80/10 | 5,100 | 10 | Jun 2025 |
| 19 | uber.com | 8.77/10 | 2,357,500 | 481,915 | Aug 2026 |
| 20 | web.app | 8.76/10 | - | - | Sep 2020 |
| 21 | tencent.com | 8.73/10 | 7,900 | 2,172 | Nov 2025 |
| 22 | siemens.com | 8.68/10 | 155,200 | 53,421 | Sep 2024 |
| 23 | rust-lang.org | 8.65/10 | 69,100 | 9,489 | Jun 2022 |
| 24 | postman.com | 8.64/10 | 35,000 | 18,694 | Mar 2026 |
| 25 | gitlab.io | 8.64/10 | - | - | Dec 2022 |
| 26 | freebsd.org | 8.55/10 | 7,700 | 2,227 | Aug 2022 |
| 27 | eu.org | 8.51/10 | - | - | Mar 2023 |
| 28 | tu-dresden.de | 8.49/10 | 2,300 | 3,199 | Mar 2021 |
| 29 | hatenablog.com | 8.47/10 | - | - | Aug 2022 |
| 30 | adyen.com | 8.43/10 | 19,200 | 5,709 | May 2019 |
| 31 | escholarship.org | 8.39/10 | 40,900 | 61,048 | Sep 2026 |
| 32 | uni-lj.si | 8.37/10 | 3,200 | 359 | Mar 2024 |
| 33 | tu-berlin.de | 8.37/10 | - | - | Dec 2022 |
| 34 | uni-hannover.de | 8.35/10 | 1,300 | 518 | Apr 2026 |
| 35 | superoffice.com | 8.34/10 | 13,300 | 4,077 | Sep 2024 |
| 36 | tistory.com | 8.33/10 | 230 | 8 | Jun 2023 |
| 37 | grpc.io | 8.32/10 | 8,400 | 4,604 | Jun 2023 |
| 38 | nta.co.jp | 8.23/10 | 45 | 214 | Jul 2026 |
| 39 | dji.com | 8.22/10 | 455,100 | 48,853 | Apr 2022 |
| 40 | jyu.fi | 8.12/10 | 4,000 | 784 | May 2026 |
| 41 | aasm.org | 8.10/10 | 43,200 | 16,265 | May 2026 |
| 42 | hateblo.jp | 8.10/10 | - | - | Jul 2023 |
| 43 | icm.edu.pl | 8.06/10 | 1 | 2 | Jan 2023 |
| 44 | univ-grenoble-alpes.fr | 8.05/10 | 770 | 497 | Aug 2022 |
| 45 | inpit.go.jp | 8.05/10 | - | 15 | May 2019 |
| 46 | uni-bayreuth.de | 8.03/10 | 720 | 442 | May 2025 |
| 47 | alibaba-inc.com | 7.97/10 | - | 1 | May 2026 |
| 48 | westpac.com.au | 7.95/10 | 29,300 | 19,318 | May 2023 |
| 49 | memphis.edu | 7.93/10 | 101,600 | 43,784 | Nov 2025 |
| 50 | hl7.org | 7.89/10 | 5,400 | 183 | Dec 2024 |
| 51 | cgu.gov.br | 7.89/10 | - | - | Aug 2020 |
| 52 | hexdocs.pm | 7.87/10 | 13,200 | 7,271 | Jul 2026 |
| 53 | mohw.gov.tw | 7.85/10 | 51 | 220 | Aug 2025 |
| 54 | illinoisstate.edu | 7.83/10 | 73,400 | 18,380 | Sep 2026 |
| 55 | metasploit.com | 7.75/10 | 2,400 | 4,255 | Jan 2023 |
| 56 | genesys.com | 7.72/10 | 19,100 | 5,892 | Jul 2022 |
| 57 | tuhh.de | 7.60/10 | 620 | 843 | Mar 2022 |
| 58 | clamav.net | 7.59/10 | 950 | 244 | Apr 2026 |
| 59 | spacelift.io | 7.55/10 | 31,900 | 12,020 | Apr 2026 |
| 60 | outsystems.com | 7.53/10 | 24,200 | 17,030 | Aug 2026 |
| 61 | ntnu.edu.tw | 7.52/10 | 180 | 38 | Mar 2024 |
| 62 | webdriver.io | 7.46/10 | 1,000 | 891 | Sep 2023 |
| 63 | volcengine.com | 7.44/10 | 83 | 145 | Apr 2026 |
| 64 | gvisor.dev | 7.41/10 | 32 | 31 | May 2026 |
| 65 | cloudfoundry.org | 7.41/10 | 1,200 | 298 | Aug 2018 |
| 66 | sbpayment.jp | 7.41/10 | 49 | 93 | Jul 2026 |
| 67 | korea.ac.kr | 7.39/10 | 160 | 108 | May 2023 |
| 68 | skia.org | 7.36/10 | 1,000 | 176 | Apr 2021 |
| 69 | hf.space | 7.34/10 | - | - | Jun 2023 |
| 70 | garr.it | 7.33/10 | 1 | 9 | Jun 2026 |
| 71 | pucv.cl | 7.29/10 | 2,700 | 2,805 | Jul 2026 |
| 72 | wasmtime.dev | 7.22/10 | - | 6 | Apr 2025 |
| 73 | divd.nl | 7.19/10 | - | 7 | Feb 2022 |
| 74 | unifei.edu.br | 7.16/10 | 19 | 8 | May 2026 |
| 75 | ufabc.edu.br | 7.07/10 | 58 | 135 | Jan 2022 |
| 76 | a2a-protocol.org | 7.06/10 | 780 | 613 | Sep 2025 |
| 77 | firewalld.org | 7.04/10 | 1,300 | 286 | Jun 2023 |
| 78 | omise.co | 7.02/10 | 130 | 81 | Feb 2020 |
| 79 | clerk.io | 7.02/10 | 150 | 177 | Dec 2025 |
| 80 | netdata.cloud | 7.02/10 | 3,800 | 2,999 | Feb 2026 |
| 81 | octoprint.org | 7.02/10 | 3,700 | 4,594 | Jan 2019 |
| 82 | turing.com | 7.02/10 | 26,800 | 17,653 | Aug 2026 |
| 83 | getindico.io | 7.02/10 | 210 | 10 | Feb 2025 |
| 84 | ki-campus.org | 7.02/10 | 120 | 118 | Oct 2025 |
| 85 | vib.be | 7.02/10 | 2,200 | 758 | May 2026 |
| 86 | fju.edu.tw | 7.02/10 | 150 | 16 | Jan 2026 |
| 87 | bht-berlin.de | 7.00/10 | 100 | 141 | Jan 2022 |
| 88 | lightningmaps.org | 6.98/10 | 34,200 | 6,478 | May 2024 |
| 89 | digdir.no | 6.97/10 | 240 | 49 | Feb 2024 |
| 90 | hft-stuttgart.de | 6.87/10 | 290 | 133 | Jul 2024 |
| 91 | jitpack.io | 6.85/10 | 750 | 1,099 | Apr 2022 |
| 92 | servo.org | 6.82/10 | 3,000 | 371 | Aug 2024 |
| 93 | knowledgeowl.com | 6.80/10 | 2,200 | 456 | Feb 2026 |
| 94 | vitess.io | 6.80/10 | 67 | 55 | May 2022 |
| 95 | gooddata.com | 6.78/10 | 5,000 | 1,990 | Dec 2022 |
| 96 | zybuluo.com | 6.73/10 | 68 | 74 | Jun 2018 |
| 97 | mofa.gov.vn | 6.72/10 | 130 | 100 | Jan 2023 |
| 98 | cloud-init.io | 6.71/10 | 83 | 41 | Mar 2026 |
| 99 | suitecrm.com | 6.69/10 | 4,800 | 1,523 | Aug 2018 |
| 100 | miccai.org | 6.69/10 | 410 | 61 | Jul 2026 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
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