Websites Powered by CodeMirror

48,024 websites tracked using CodeMirror (Editors) · codemirror.net

CodeMirror is a online editor or content-authoring tool. Its official site is codemirror.net. PoweredBy tracks the websites that use CodeMirror across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the editors ecosystem.

Usage trend

Domains observed using CodeMirror in each month's HTTP Archive crawl, Jun 2018 to Aug 2026 · peak 18,151 in Mar 2026. The tracked total above also counts sites not re-crawled recently.

Core Web Vitals

LCP 2.1 s INP 75 ms CLS 0 TTFB 900 ms

Median site among 20,145 CodeMirror sites with Chrome UX data, p75 values, Aug 2026.

Top countries

United States 11,605
India 2,977
United Kingdom 2,501
Canada 2,325
Germany 1,980
Brazil 1,954
France 1,686
Spain 1,646

Sites using CodeMirror by audience country, Chrome UX Report.

Top sites by authority

9+ 8% · 28 of 372 sites
8+ 3% · 236 of 7,677 sites
7+ 1% · 554 of 45,712 sites
6+ <1% · 848 of 110,136 sites
5+ <1% · 1,231 of 246,751 sites

The share of the web's most authoritative domains, by Open Page Rank tier, seen running CodeMirror in recent crawls. Only 372 domains worldwide score 9 or higher.

Websites using CodeMirror

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
1 google.com 10.00/10 36,640,600 1,601,732 Aug 2018
2 cloudflare.com 9.78/10 984,600 93,222 Apr 2026
3 europa.eu 9.57/10 42,200 31,835 Sep 2021
4 amazonaws.com 9.50/10 - - Aug 2026
5 nih.gov 9.44/10 301,200 37,339 Feb 2020
6 github.io 9.43/10 1,800 1 Aug 2018
7 blogspot.com 9.39/10 - - Jun 2020
8 schema.org 9.27/10 35,200 4,492 Jul 2021
9 yahoo.com 9.27/10 16,064,700 10,883,592 Aug 2018
10 harvard.edu 9.24/10 472,900 13,570 Nov 2018
11 ca.gov 9.23/10 1,457,100 28,722 Jan 2022
12 stanford.edu 9.19/10 3,302,700 5,160 Aug 2018
13 trustpilot.com 9.14/10 4,788,100 791,788 Apr 2023
14 myshopify.com 9.12/10 - - Jun 2020
15 nist.gov 9.12/10 677,600 130,365 Jan 2022
16 zendesk.com 9.10/10 416,900 60,938 Feb 2023
17 berkeley.edu 9.10/10 166,900 5,412 Aug 2018
18 cloudinary.com 9.09/10 93,500 30,227 Oct 2022
19 vercel.app 9.05/10 - - Dec 2023
20 readthedocs.io 9.04/10 - - Dec 2020
21 mdpi.com 9.02/10 1,843,600 1,928,740 Jun 2026
22 netlify.app 9.01/10 2 2 Jan 2021
23 psu.edu 9.01/10 581,600 94,595 Aug 2022
24 umich.edu 9.01/10 36,500 1,974 Jan 2019
25 yale.edu 9.01/10 177,900 6,885 Sep 2020
26 gitlab.com 9.00/10 87,500 29,195 Aug 2022
27 uk.com 9.00/10 2 12 Apr 2019
28 upenn.edu 9.00/10 179,200 5,457 Dec 2022
29 android.com 8.98/10 540,200 161,498 Feb 2020
30 cmu.edu 8.97/10 436,800 81,774 Aug 2018
31 wisc.edu 8.97/10 461,400 7,361 Aug 2024
32 datatables.net 8.96/10 5,000 8,051 Aug 2018
33 telegram.org 8.96/10 400,200 21,051 Aug 2018
34 umn.edu 8.96/10 78 49 Mar 2022
35 elsevier.com 8.93/10 344,600 88,582 Mar 2025
36 utexas.edu 8.92/10 503,000 11,984 Jan 2020
37 uchicago.edu 8.92/10 63,700 10,331 Aug 2018
38 zoho.com 8.90/10 564,300 147,943 May 2025
39 azurewebsites.net 8.87/10 - - Mar 2020
40 appspot.com 8.87/10 - - Feb 2019
41 optimizely.com 8.86/10 149,400 9,101 Mar 2020
42 us.com 8.86/10 32 9 Sep 2021
43 northwestern.edu 8.86/10 193,400 45,922 Jan 2024
44 ilo.org 8.85/10 55,900 30,140 Aug 2022
45 brevo.com 8.84/10 36,700 8,656 Jul 2023
46 ufl.edu 8.84/10 241,600 3,624 Jan 2022
47 ubc.ca 8.84/10 14,500 2,813 May 2026
48 illinois.edu 8.83/10 47,000 4,065 Jan 2021
49 ct.gov 8.83/10 4,800 35 Dec 2022
50 ucdavis.edu 8.83/10 383,600 93,475 Mar 2025
51 cnrs.fr 8.82/10 4,300 2,992 Jul 2022
52 kakao.com 8.80/10 51 39 Apr 2026
53 uzh.ch 8.79/10 7,800 3,263 Dec 2022
54 mn.gov 8.78/10 964,200 281,325 Sep 2024
55 chromium.org 8.77/10 66,400 12,752 Feb 2020
56 wpenginepowered.com 8.77/10 - - Sep 2025
57 uber.com 8.77/10 2,357,500 481,915 Aug 2022
58 bu.edu 8.77/10 813,200 295,729 Dec 2023
59 dreamhost.com 8.76/10 34,700 11,767 Aug 2022
60 web.app 8.76/10 - - Jan 2023
61 tamu.edu 8.76/10 352,900 11,636 Jul 2020
62 rutgers.edu 8.75/10 147,400 31,478 Jul 2024
63 herokuapp.com 8.74/10 - - Feb 2020
64 ucl.ac.uk 8.74/10 154,800 93,062 Oct 2021
65 utah.edu 8.74/10 474,600 10,598 Dec 2024
66 brown.edu 8.73/10 377,100 26,065 Oct 2022
67 colorado.edu 8.72/10 591,600 213,520 Dec 2024
68 uwaterloo.ca 8.71/10 224,700 71,840 Aug 2018
69 rochester.edu 8.71/10 240,800 70,711 Mar 2025
70 ucsb.edu 8.71/10 73,800 11,445 Apr 2025
71 hku.hk 8.70/10 6,000 1,100 Mar 2025
72 usercentrics.com 8.69/10 14,200 4,889 Aug 2025
73 pitt.edu 8.69/10 62,900 8,815 Sep 2020
74 mozilla.com 8.68/10 64 1 Aug 2025
75 gatech.edu 8.68/10 72,600 12,653 Jul 2022
76 tufts.edu 8.68/10 98,500 9,726 Jun 2022
77 wildapricot.org 8.67/10 - - Aug 2018
78 pantheonsite.io 8.67/10 7 5 Jun 2026
79 ed.ac.uk 8.67/10 29,600 5,927 Aug 2022
80 americanbar.org 8.67/10 710,900 144,424 Apr 2025
81 esa.int 8.67/10 412,100 94,679 Mar 2020
82 delaware.gov 8.67/10 128,800 12,757 May 2019
83 mastercard.com 8.66/10 866,600 105,364 Jan 2024
84 altervista.org 8.66/10 - - Oct 2019
85 state.mn.us 8.65/10 1,200 52 Feb 2023
86 cuny.edu 8.65/10 294,000 61,388 Aug 2018
87 redis.io 8.64/10 53,300 36,680 Jul 2026
88 vt.edu 8.64/10 215,800 25,974 Aug 2018
89 gwu.edu 8.64/10 257,600 13,986 May 2023
90 epicgames.com 8.63/10 1,386,600 220,535 Aug 2022
91 wi.gov 8.63/10 - - Nov 2025
92 vanderbilt.edu 8.63/10 268,300 63,961 May 2025
93 argentina.gob.ar 8.62/10 91,600 117,452 Mar 2026
94 nus.edu.sg 8.62/10 20,200 3,936 Feb 2020
95 colostate.edu 8.62/10 189,200 11,352 Jun 2021
96 hawaii.edu 8.62/10 117,100 43,233 Sep 2023
97 lego.com 8.61/10 4,328,600 991,359 Apr 2024
98 unctad.org 8.61/10 82,400 29,936 Jul 2023
99 uic.edu 8.61/10 69,500 13,549 Nov 2024
100 teamtailor.com 8.59/10 360 380 Nov 2021

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.

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