Hi HN, please join us for our first event in 2026.

This is a space where Hacker News readers can come along and discuss technology, science, and business.

Location: The Masque Haunt (Wetherspoon) 168–172 Old Street, London, UK

Time: Tuesday, January 27, 6pm - 9pm

Meetup (65 attendees so far): https://www.meetup.com/hackernewslondon/events/312720206

This is an unofficial, community organized event from Hacker News readers for Hacker News readers.

Support for bigger group sizes (5 - 8 users) for https://catchup.rocks

In case anyone is looking for an alternative - I've launched https://latex.to here on HN last year. Since then I've added the option to save formulas in your browser via IndexedDB.

I will design a proper favicon! I think I implemented the current placeholder according to https://stackoverflow.com/a/13416784

The data URI you're using has no MIME type, and even then the data is still an invalid PNG image. Not sure why the Stack Overflow answer is suggesting that.

This looks really interesting! I will definitely have a look.

Thank you, those are both very good suggestions I will look into!

I could add a GPT based pdf to latex functionality in the future.

Thank you for your feedback.

I've just added the links to both projects in the info modal.

I will look into adding HTML and MathML exports in the next version.

KaTeX has a build in MathML feature, but I haven't yet looked into it for rendering.

The "Share text" functionality of the website uses KaTeX's MathML feature as an intermediate step.

Thank you for your positive feedback.

KaTeX does not support all LaTeX features but initializes very quickly.

LaTeX via WebAssembly supports more features but might need longer to initialize.

There's an existing WebAssembly project: https://www.swiftlatex.com