A is a digital document that can contain chapters with text, images, lists, tables, slides, math formulas et cetera. It can be used (for example) as a college book containing knowlegde, presentation slides, exercise assignments and flash cards. All in one document!

The output file is a single HTML file (with no dependencies, including font data) that can be read in every (major) browser on a computer, tablet or other mobile device.

It's source is written in plain text, for example in a Markdown editor or directly inside this app. And because a lot of the syntax is related to Markdown, editing will be a piece of cake.

Features of this app include:

• Structure: title, chapter, sub-chapter, print, hidden chapter
• Text style: emphasize, bold, strike through, mark, positive/negative/question, dimmed, inline math, code, newline, color, size, font familiy, alignment
• Inline elements: internal link, external link, reference figure/table, citation, footnote, image bitmap/vector, icon (more than 2000 included), symbol/emoticon
• Block elements: paragraph, math, sorted/unsorted list, check list, table, blockquote, box, sticker, figure, code block, table of contents, columns, folded block, scripting block
• Parameters: parametrized value, parametrized block, argument, calculation, unit
• Special code blocks: slide, sub slide, flashcard, exercise, tabulair data (csv), jsvg drawing, mermaid diagram
• Export options: save to file, export to html, export to plain html, print (to pdf)
• Import options: load from file, paste input code
• Interactive options: show slide show, practice flashcards, increase/decrease font size, toggle light/dark theme, responsive layout
• Editing options: save to local storage, image/asset manager, view icons, view colors, view symbols, view LaTeX math examples, view cheat sheet, word wrap