Copy LaTeX 2 by Leander

Hover and click to copy LaTeX expressions on ChatGPT, DeepSeek, Wikipedia, Stack Exchange and other math-related websites.

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About this extension

CopyLaTeX

A browser extension (Chrome & Firefox) that lets you quickly copy LaTeX code (KaTeX or MathJax) from equations displayed on websites like ChatGPT, DeepSeek, or any blog using mathematical equations. It works simply by hovering over an equation and clicking to copy the LaTeX expression.

Features

Click-to-copy LaTeX from KaTeX and MathJax equations
Hover overlay showing a “Copy LaTeX” badge
Wikipedia & Wikiwand support
Regex replacement rules
Customizable via the popup UI
Useful to automatically fix formatting quirks or tailor LaTeX output

Open Source

The code is available here.

Rated 0 by 0 reviewers

Permissions and data

Required permissions:

Access your data for all websites

Optional permissions:

Access your data for sites in the notion.site domain
Access your data for sites in the wikipedia.org domain
Access your data for sites in the wikiversity.org domain
Access your data for sites in the wikibooks.org domain
Access your data for chatgpt.com
Access your data for chat.deepseek.com
Access your data for math.stackexchange.com
Access your data for physics.stackexchange.com
Access your data for proofwiki.org
Access your data for www.notion.so
Access your data for www.wikiwand.com
Access your data for wikimedia.org
Access your data for mathoverflow.net
Access your data for publish.obsidian.md
Access your data for nbviewer.org
Access your data for www.phind.com
Access your data for chat.mistral.ai
Access your data for librechat-librechat.hf.space
Access your data for www.perplexity.ai
Access your data for phys.libretexts.org

Data collection:

The developer says this extension doesn't require data collection.