Build, time, and polish your slides — fast.

Markdown → Slides, Slide Timer, Aspect Ratio calculator, and practical guides. Free, no login.

Markdown → Slides Slide Timer Aspect Ratio

Markdown → Slides

Write slides in Markdown, split with ---, export clean HTML, choose themes, auto numbering, and watermark.

Open tool

Slide Timer

Plan talk time per slide, run a focused rehearsal timer with audible cues.

Open tool

Aspect Ratio Calculator

Fix stretched slides. Convert between 16:9, 4:3, 1:1 and custom ratios.

Open tool

Guides & Templates

The 7-part structure for persuasive slides How to write slides in Markdown Best free presentation templates

Pro coming soon

Export PDF with notes, more themes, offline export. Join waitlist: