Who is Using KaTeX?
KaTeX is used by many projects:

Khan Academy

CindyJS
CoCalc

Dropbox Paper

Editor.md

Expii

GitLab
Gatsby

Gitter

Gradescope

hack.chat
Idyll
Interactive Mathematics
Marker
MathWills

Messenger

MonsterWriter

namu.wiki

Notable
Observable
Quill
Rocket.Chat

Slides
Spinning Numbers
StackEdit

Tutti Quanti Shelf

Vade Mecum Shelf
Are you using KaTeX?
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