How many companies use KaTeX?

TechLeads currently detects KaTeX on 13,800 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 21,801 pages in September 2026.

Who are KaTeX's biggest competitors?

By number of websites, the largest JavaScript graphics technologies besides KaTeX are WOW (693,733), Chart.js (475,064), particles.js (467,218), anime.js (249,916), Three.js (164,810).

Which companies use KaTeX?

Websites using KaTeX include huggingface.co, influencermarketinghub.com, weaviate.io, stepik.org, philpapers.org, guardianproject.info. The full list of 13,800 websites can be exported as a CSV for $29.

KaTeX market share and customers

As of October 8, 2026, KaTeX is used by 13,800 websites in the TechLeads index: 0.55% of all JavaScript graphics detections, the 16th most-used of 52 JavaScript graphics technologies.

13,800

websites using KaTeX

0.55%

share of JavaScript graphics

#16

of 52 in JavaScript graphics

Cite this data

Quoting these numbers? Credit TechLeads with a link to this page.

Citation

TechLeads. "KaTeX Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/katex/market-share

HTML link

<a href="https://techleads.fyi/technology/katex/market-share">KaTeX market share (TechLeads data)</a>

KaTeX vs competitors in JavaScript graphics

Websites using each technology in the TechLeads index, and its share of all JavaScript graphics detections.

#	Technology	Websites	Share
1	WOW	693,733	27.8%
2	Chart.js	475,064	19.0%
3	particles.js	467,218	18.7%
4	anime.js	249,916	10.0%
5	Three.js	164,810	6.6%
6	MathJax	62,226	2.5%
7	D3	53,237

KaTeX usage over time

In HTTP Archive's monthly crawl of public websites, KaTeX was detected on 21,801 pages in September 2026, up 10.3% from a year earlier (peak: 22,196). Among the 1,000 most-visited sites, it appeared on 3. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.

Same month, other JavaScript Graphics technologies in HTTP Archive: Chart.js 617,482, anime.js 533,422, particles.js 414,722, Three.js 179,437, MathJax 113,955.

KaTeX customers by country

Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.

JP61
US58
CN18
GB8
DE6
FR5
CO4
MX3
AT3
ES2

Companies using KaTeX

huggingface.co
influencermarketinghub.com · Influencer Marketing Hub
weaviate.io
stepik.org
philpapers.org
guardianproject.info
qconcursos.com
velog.io
modelcontextprotocol.io · Modelcontextprotocol
distill.pub · Distill
insightcrime.org · Insightcrime
roamresearch.com

See all 13,800 websites using KaTeX or download the full list as a CSV for $29.

How these numbers are calculated

TechLeads scans public websites and detects KaTeX from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is KaTeX's website count divided by the website counts of all JavaScript graphics technologies we track; a site using two JavaScript graphics tools counts for both. Counts were last refreshed on October 8, 2026 and update daily.

FAQ

KaTeX accounts for 0.55% of JavaScript graphics detections in the TechLeads index (13,800 websites), which makes it the 16th most-used of 52 JavaScript graphics technologies we track.