Built a privacy-first markdown tool - great engagement.

Hey,

I've built a markdown-to-PDF converter [https://convertmd2pdf.com] because I needed to convert reports to PDFs and hated that every tool uploaded my data somewhere.

What makes it different:

- Layout toggle (horizontal/vertical)

- Synced scrolling between panels

- Focus mode with 60:40 editor split

- IEEE/ACM academic theme (one-click black & white)

- Privacy-first: zero uploads, runs in browser, works offline as PWA

Numbers:

- 50 users/week

- 41-minute average session time

- Built with vanilla HTML/CSS/JS

- Deployed on Vercel

Thanks!