I just shipped a new public-facing tool: markdowntoemailconverter.com
This project was born from a critical bottleneck in my content pipeline. Writing articles in markdown is efficient, but manually converting them to email-ready HTML for my newsletter (GetViajo.com) was a tedious, error-prone process that wasted hours. Tables, formatting, and inline CSS were a constant problem.
In two days, working with Claude and Gemini as development partners, I built a solution.
The impressive part of this, IMO, is the intelligent truncation engine. It automatically calculates the total size of the HTML (including the inline CSS) to proactively prevent the “email clipping” that Gmail and other clients enforce. It solves the entire ecosystem problem, not just the formatting one.
This was a 48-hour investment that will save me dozens of hours and eliminate a major point of friction in my marketing workflow. I put it online for anyone to use—free, no signup. If you run a newsletter and write in markdown, this will save you time.