Markdown Editor with Obsidian-style Preview

Hi there,

I am searching for an Markdown Editor, with a similar Live-Preview feature to Obsidian. In particular, I do not want to split the view into source and preview, but have the preview as the main window and only switch to source code for the line/block I am currently editing. Nextcloud uses a similar feature for their in-browser editor, but I need an offline variant.

Do you have any suggestions?