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Sites built with highlight.js

Open source JavaScript syntax highlighting library for code on the web.

#69 of 1370 in Javascript Library First seen: May 14, 2026 Last seen: Sep 29, 2026 Website: highlightjs.org
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3,153 sites

3,104 found by StackScope, 49 via launch platforms

StackScope Wider Web 2,964 StackScope Discovery (Indie) 140 Product Hunt 26 Hacker News 17 PeerPush 4 Other 2
  • StackScope Wider Web 2,964
  • StackScope Discovery (Indie) 140
  • Product Hunt 26
  • Hacker News 17
  • PeerPush 4
  • Other 2
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.0% +0.0pp
Most used with jQuery, Cloudflare, HSTS
Top product types Developer Tools, Productivity, Education
Green hosting 51% vs 46% avg

highlight.js has been detected on 3,153 launches we've crawled, with 1177 of those in September 2026 (0.1% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Miorița AI — Asistent AI românesc, today.

It's most commonly paired with jQuery, Cloudflare, and HSTS. By product type, the launches using it are most often Developer Tools (15%), Productivity (14%), and Education (14%). The 46 scored launches using highlight.js average a StackScope score of 5.7 out of 10, against 6.4 across all launches we score.

What kind of products ship with highlight.js

810 launches

Developer Tools
14.69%
Productivity
14.32%
Education
13.58%
E-commerce
11.73%
Health
8.89%
AI
7.65%
Marketing
7.41%
Social
6.05%
Finance
4.20%
Content
3.95%
Games
3.83%
Design
1.73%
Crypto
0.86%
Hiring & HR
0.62%
Directory
0.49%

Domain endings using highlight.js

3,151 sites

  • .com 70.23%
  • .in 3.46%
  • .online 2.82%
  • .dev 2.70%
  • .xyz 2.25%
  • .org 2.09%
  • .net 1.84%
  • .site 1.81%
  • .io 0.98%
  • .me 0.95%
  • .ca 0.86%
  • .tech 0.86%
  • .uk 0.86%
  • .app 0.79%
  • .cloud 0.57%

Country

1,270 of 3,153 sites, where we are semi-confident of the country.

  • South Korea South Korea 82.36%
  • India India 5.04%
  • Japan Japan 1.50%
  • United Kingdom United Kingdom 1.34%
  • Brazil Brazil 1.18%
  • Canada Canada 1.10%
  • France France 0.87%
  • Australia Australia 0.79%
  • China China 0.79%
  • United States United States 0.79%
  • Slovakia Slovakia 0.71%
  • Poland Poland 0.63%
  • Iran Iran 0.55%
  • Switzerland Switzerland 0.39%
  • Germany Germany 0.31%

Share of new sites using highlight.js

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026. Chart starts at first detection.

0.0%
last 7 days
+0.0pp vs prior week
0.1%
September so far
1,177 of 1,813,136 sites
3,153
sites all time
since May 2026
highlight.js daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 10 September 2026: we improved our infrastructure to index new sites much sooner, often on the day they go live, so the cohort this share is measured against changes here. 5% 2% 0% May Jun Jul Aug Sep Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Weekly averages before this point, daily after. Jul 1 · 0 / 795 = 0.0% Jul 2 · 1 / 603 = 0.2% Jul 3 · 1 / 499 = 0.2% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 1 / 551 = 0.2% Jul 7 · 0 / 1188 = 0.0% Jul 8 · 9 / 12584 = 0.1% Jul 9 · 16 / 23770 = 0.1% Jul 10 · 16 / 22591 = 0.1% Jul 11 · 9 / 16097 = 0.1% Jul 12 · 13 / 20379 = 0.1% Jul 13 · 15 / 21001 = 0.1% Jul 14 · 14 / 20536 = 0.1% Jul 15 · 8 / 17604 = 0.0% Jul 16 · 6 / 14379 = 0.0% Jul 17 · 12 / 19768 = 0.1% Jul 18 · 13 / 22775 = 0.1% Jul 19 · 15 / 26337 = 0.1% Jul 20 · 12 / 22807 = 0.1% Jul 21 · 17 / 21763 = 0.1% Jul 22 · 14 / 23322 = 0.1% Jul 23 · 7 / 16967 = 0.0% Jul 24 · 3 / 12954 = 0.0% Jul 25 · 2 / 9009 = 0.0% Jul 26 · 6 / 20051 = 0.0% Jul 27 · 15 / 33960 = 0.0% Jul 28 · 18 / 38339 = 0.0% Jul 29 · 42 / 50169 = 0.1% Jul 30 · 48 / 44021 = 0.1% Jul 31 · 39 / 51163 = 0.1% Aug 1 · 52 / 50576 = 0.1% Aug 2 · 47 / 49762 = 0.1% Aug 3 · 39 / 48263 = 0.1% Aug 4 · 30 / 37364 = 0.1% Aug 5 · 26 / 32723 = 0.1% Aug 6 · 16 / 36611 = 0.0% Aug 7 · 15 / 37844 = 0.0% Aug 8 · 29 / 39713 = 0.1% Aug 9 · 21 / 34245 = 0.1% Aug 10 · 35 / 28977 = 0.1% Aug 11 · 19 / 32134 = 0.1% Aug 12 · 37 / 33634 = 0.1% Aug 13 · 46 / 50056 = 0.1% Aug 14 · 43 / 51412 = 0.1% Aug 15 · 36 / 51528 = 0.1% Aug 16 · 37 / 51824 = 0.1% Aug 17 · 60 / 41498 = 0.1% Aug 18 · 39 / 53923 = 0.1% Aug 19 · 32 / 49454 = 0.1% Aug 20 · 58 / 66751 = 0.1% Aug 21 · 76 / 90390 = 0.1% Aug 22 · 90 / 91308 = 0.1% Aug 23 · 76 / 90204 = 0.1% Aug 24 · 89 / 79045 = 0.1% Aug 25 · 53 / 69453 = 0.1% Aug 26 · 58 / 65474 = 0.1% Aug 27 · 66 / 84064 = 0.1% Aug 28 · 78 / 84118 = 0.1% Aug 29 · 75 / 84687 = 0.1% Aug 30 · 90 / 92879 = 0.1% Aug 31 · 121 / 90548 = 0.1% Sep 1 · 103 / 92245 = 0.1% Sep 2 · 108 / 98278 = 0.1% Sep 3 · 90 / 93538 = 0.1% Sep 4 · 74 / 89351 = 0.1% Sep 5 · 102 / 93366 = 0.1% Sep 6 · 65 / 81686 = 0.1% Sep 7 · 59 / 79249 = 0.1% Sep 8 · 57 / 72163 = 0.1% Sep 9 · 43 / 68467 = 0.1% Sep 10 · 42 / 72162 = 0.1% Sep 11 · 42 / 77658 = 0.1% Sep 12 · 38 / 51348 = 0.1% Sep 13 · 39 / 53609 = 0.1% Sep 14 · 29 / 53502 = 0.1% Sep 15 · 27 / 52971 = 0.1% Sep 16 · 17 / 53637 = 0.0% Sep 17 · 20 / 51656 = 0.0% Sep 18 · 14 / 48174 = 0.0% Sep 19 · 9 / 41105 = 0.0% Sep 20 · 17 / 40619 = 0.0% Sep 21 · 25 / 46586 = 0.1% Sep 22 · 17 / 50099 = 0.0% Sep 23 · 23 / 53069 = 0.0% Sep 24 · 18 / 47933 = 0.0% Sep 25 · 22 / 46476 = 0.0% Sep 26 · 25 / 97920 = 0.0% Sep 27 · 23 / 48981 = 0.0% Sep 28 · 29 / 57288 = 0.1%
Apr 20, 2026 90 days Sep 28, 2026

The shaded parts of the chart are measured against a different set of sites.

Grey: until 8 July 2026 we only tracked launches from launch platforms. From that date we crawl the wider web as well.

Amber: on 10 September 2026 we improved our infrastructure so we can index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from that date. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time, so it can step at these lines without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

Javascript Library leaders

Tool % of launches % of category
#1 – jQuery 14.61% 35.68%
#2 – React Router 6.26% 15.29%
#3 – Motion 5.83% 14.25%
#4 – TanStack Router 4.13% 10.08%
#5 – Swiper 3.70% 9.04%
…
#69 ▲7 highlight.js Current page 0.07% 0.18%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among August launches it ranked #66 in Javascript Library, up from #73 in July. All 1370 in Javascript Library →

Often used with

Tool Sites
jQuery 2,546
Cloudflare 2,032
HSTS 1,570
cdnjs 1,560
Google Fonts 1,355

Tools most often detected on the same sites as highlight.js.

Recent launches we can show

189 of the 3,153 sites using highlight.js are product launches we list individually. The other 2,964 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

Miorița AI — Asistent AI românesc Sep 28, 2026 AI Frame Notes Sep 28, 2026 Quorum — Multi-engine AI deliberation. Better answers. Fewer rounds. Sep 28, 2026 AI Connecto • Real-Time Community Platform for Tactical Squads & Gamers Sep 28, 2026 Social QuickPad — Zero-Knowledge Real-Time Scratchpad Sep 27, 2026 Review management for local businesses | Operation Five Star Sep 25, 2026 Marketing AI App Builder: Build Apps and Websites With AI | Puter Sep 24, 2026 AI Whatsfood Sep 24, 2026 Screenshot of Dsci, a launch using highlight.js Dsci Sep 24, 2026 · score 0.7 Developer Tools InfinityPaste | Share Code & Text Instantly Sep 24, 2026 Developer Tools Screenshot of Lineselect, a launch using highlight.js Lineselect Sep 23, 2026 · score 2.2 Developer Tools RIP Memo: Progamme des obsèques, Livre des condoléances et de souvenirs digital Sep 23, 2026

Showing the most recent 12 of 189.

The StackScope API serves all 3,153 sites using highlight.js, filterable and exportable, from £15 a month.

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