Markdown usually looks simple in raw form until a heading level, list indentation, or link format renders differently than expected. A preview step catches those issues before the content goes live.
Why a preview matters
Raw Markdown is readable, but it does not always reveal the final structure. Nested lists, fenced code blocks, tables, and links can render differently across platforms when the syntax is slightly off.
A quick preview pass helps you catch those problems before publishing.
What to inspect first
Check heading hierarchy, list indentation, link text, code fences, and spacing between sections. These are the areas most likely to produce unexpected output.
If the content is going into a CMS or repository, it also helps to scan the rendered result for line-break issues and long sections that need trimming.
A faster editing loop
Keep the raw Markdown on one side and the preview on the other so you can fix syntax and immediately verify the result. That short loop is faster than publishing, noticing a render issue, and correcting it later.
If needed, pair the preview with a word counter when length and readability also matter.