An image is a link with an exclamation mark in front. Write alt text that describes the picture for screen readers and for when it fails to load. Relative paths like ./images/chart.png are resolved from the Markdown file's folder.
All ways to write it
An exclamation mark, then link syntax. The alt text describes the image.Works everywhere
With a tooltip title.Works everywhere
An image that is also a link.Works everywhere[](https://yamuno.com)
Example
You type
You get

The image shows at its natural size. To control the size, see image size.
Questions
Why is my image not showing?
Check the path is relative to the Markdown file, not to where you run the tool, and that the file name matches exactly, including case.
How do I add a caption?
Markdown has no captions. Put a line of italic text under the image, or use <figure> and <figcaption> where HTML is allowed.
Image in Confluence
Markdown Importer uploads local images as Confluence attachments, can fetch remote ones, and updates the image references for you. Inside a Markdown Macro+ macro, images must already be attached in Confluence: the toolbar inserts them, and outside image URLs are not loaded because of Atlassian's data policy.