Copy LaTeX (KaTeX & MathJax & Wikipedia images) by Mapaor4

Quickly copy LaTeX code from mathematical expressions on websites like ChatGPT, DeepSeek, Stack Exchange, Wikipedia and other math sites or blogs by simply hovering and clicking.

5 (2 reviews)

2 Users

You'll need Firefox to use this extension

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About this extension

Copy LaTeX code from any KaTeX or MathJax-rendered math expression directly in your browser. It also works with Wikipedia images. Hover over an equation to reveal a “Click to copy” overlay, then click to instantly copy the LaTeX code to your clipboard. Works on ChatGPT, DeepSeek, Stack Exchange, GitHub, ProofWiki and any website using KaTeX or MathJax as well as Wikipedia and Wikiwand. No external dependencies are required, and it ensures fast, seamless copying for students, researchers, and developers working with mathematical content online.

GitHub repo with source code and more details: https://github.com/Mapaor/copy-latex-firefox-extension.

Rated 5 by 2 reviewers

Permissions and dataLearn more

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 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 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

Release notes for 1.1.0

Added support for Wikipedia images! Now you can copy their LaTeX code as if it was KaTeX or MathJax
Improved consistency with font fallbacks for the overlay
Added new default hosts (so one can disable "all sites" and still work for most popular math websites).

For more information and GIFs and images illustrating use cases see the repo README: https://github.com/Mapaor/copy-latex-firefox-extension.