Neptune is a web-based proofing framework for LATEX authors. It is part of TEXFolio, the complete journal production system on the cloud. But the question where is the link to start editing?

Neptune website: https://neptune.texfolio.org/main.html

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    Isn't it part of a commercial article editing system?
    – Joseph Wright
    Commented Apr 8, 2021 at 20:59
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    Well on texfolio.org it says that this is "Free/Open source". So, maybe you should just ask them directly. Commented Apr 8, 2021 at 21:38
  • Is there a documentation available for nepture or texfolio? I couldn't find either. Commented Jun 10, 2021 at 1:26
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    I think it rather says that it is "based on free software", not that it is free software itself. Commented Apr 14, 2022 at 10:35

1 Answer 1


I think you can request free access to it if you are a scholar. https://stmdocs.com/gray-flyer.pdf

Otherwise, I guess you will need to pay to get it as "software as a service" (SaaS).

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