Side by side

impress.js vs MDX Deck

Both stand on presentation software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

impress.js

Free plan Self-hostedWeb

impress.js provides a code-based way to create web presentations with canvas movement and 3D effects. Its modern browser requirements and need for HTML/CSS authoring are important considerations.

Visit impress.js

MDX Deck offers a code-friendly way to build web presentations from Markdown and MDX. Its free open-source license and built-in presentation features suit technical authors comfortable with a development workflow.

Visit MDX Deck

The facts

	impress.js	MDX Deck
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Self-hosted, Web	Web
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Not published	Not published
Website	impress.js.org	github.com
On presentation software	#67 of 93	#71 of 93

impress.js: what it does well

Free MIT-licensed framework
Infinite canvas with positioning, rotation, and scaling
Presenter console shows current and previous slides
Plugins add navigation, progress, and blackout controls
Works from CDN or local copy

What to know first

Older browsers are unsupported
Embedded presentations may fail to display correctly
Requires HTML and CSS authoring

MDX Deck: what it does well

Markdown separates slides with a simple marker
React components can appear inline
Zero-config CLI starts a development server
Presenter mode and synchronized windows are included
Free, MIT-licensed open source

What to know first

Web platform only
Optional libraries may have version compatibility issues
Requires development-dependency installation

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