You can export Whimsical files in a few different ways. Most options live under the Share button (top right), but some, like SVG and Mermaid,are right-click commands on the canvas.

On the Free plan, exports include a "Made with Whimsical" watermark. Upgrading to Pro or Business removes it.
Under Share → Export, you can download your board as a PNG.
Select objects on the canvas, right-click, and choose Copy as… to put an image on your clipboard. Paste it into Slack, a doc, an email, or anywhere that accepts an image. The submenu offers a few PNG variants:
Command + Shift + C (Mac) or Control + Shift + C (Windows/Linux).If text or connector labels look washed out or invisible after you paste, it's usually a color-mode mismatch: you copied in dark mode and pasted onto a light background, or the other way around. Use PNG in light mode or PNG in dark mode to pin the image to the mode that matches where you're pasting.
You can also use the Copy button on the Export tab to copy.
Under Share → Print, choose "Save as PDF" as the destination to get a PDF.
Select objects on the canvas, right-click, and choose Copy as… → SVG. Paste into Figma, Illustrator, a code editor, or anywhere that takes SVG.
For flowcharts and sequence diagrams, select the diagram, right-click, and choose Copy as… → Mermaid. The code preserves shape styles, colors, and grouping (as subgraphs).
See Working with Mermaid code in Whimsical for the full syntax reference.
Under Share → Export, you'll see a preview of your doc as Markdown along with:
.mdUse this to move content into GitHub, Notion, Obsidian, or anywhere else that reads Markdown.
Under Share → Print, choose "Save as PDF" as the destination to get a PDF.