HTML Editor

Full control with custom HTML.

For teams that need pixel-level precision, our HTML editor gives you full control with syntax highlighting, live preview, and dynamic variables that auto-populate per user.

SigStudio HTML Editor interface
Pixel-perfect control

Write HTML, see results instantly

Our code editor is built for signature developers who need complete control over every element.

  • Syntax highlighting -- Color-coded HTML and CSS with instant visual feedback
  • Live preview rendering -- See your signature render in real time as you type
  • Dynamic variables -- Merge fields like , HTML Editor, auto-populate per user on deploy
  • Full HTML/CSS access -- No restrictions on what you can build -- tables, images, links, and more

Ready to build pixel-perfect signatures?

Get started with a $1 trial and build your first signature in minutes.