Show HN: OverType – A Markdown WYSIWYG editor that's just a textarea

Post by acherion » Sun, Aug 17, 2025, 11:48 PM UTC

ForceBru wrote: post #39

I thought it should be extremely portable ("everything just works, it's native"), but it doesn't work on iOS 9.3.6. It doesn't even let me input text into the textarea... A natural extension seems to be a source code editor with syntax highlighting, like those used in https://marimo.io/ , Jupyter, https://plutojl.org/ and other notebook-like Web editors.

Post by jv22222 » Mon, Aug 18, 2025, 12:00 AM UTC

Post by jagged-chisel » Mon, Aug 18, 2025, 12:06 AM UTC

pedrovhb wrote: post #31

Nice! Seems very useful if you can drop in and have everything work. Nitpicking a bit: it's not as much _rendering_ markdown as it's _syntax highlighting_ it. Another interesting approach there could be to use the CSS Custom Highlight API [0]. Then it wouldn't need the preview div, and perhaps it'd even be possible to have non-mono fonts and varying size text for headers. [0] https://developer.mozilla.org/en-US/docs/…

Post by 4b11b4 » Mon, Aug 18, 2025, 12:23 AM UTC

jagged-chisel wrote: post #45

pedrovhb wrote: post #31

Nice! Seems very useful if you can drop in and have everything work. Nitpicking a bit: it's not as much _rendering_ markdown as it's _syntax highlighting_ it. Another interesting approach there could be to use the CSS Custom Highlight API [0]. Then it wouldn't need the preview div, and perhaps it'd even be possible to have non-mono fonts and varying size text for headers. [0] https://developer.mozilla.org/en-US/docs/…

The animated exploded demo definitely shows formatting differently from plain text (bold is bold, hyphens replaced with bullets.)

Post by jackbridger » Mon, Aug 18, 2025, 12:58 AM UTC