Based on our record, Previm seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've been a happy user of https://github.com/previm/previm the plantuml and mermaid support are the cherry on top. Source: about 3 years ago
SuperNotecard - Introducing SuperNotecard. SuperNotecard is an online writing tool that features virtual notecards to help arrange facts or scenes, track details, organize paragraphs, and clarify your composition process.
Markdown Preview for (Neo)vim - Preview markdown on your modern browser with synchronized scrolling and flexible configuration.
vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.
Markdown Viewer - Markdown document viewer. Allows to visualize formatted markdown documents in browser.
Freeplane - Freeplane is a powerful and free software for building mind maps.
vmd - Preview markdown files in a separate window. Markdown is formatted exactly the same as on GitHub.