Markdown ↔ HTML Conversion Pipeline

Content creators switching between markdown and HTML waste time on manual conversion and formatting. A bidirectional conversion tool supporting markdown→beautiful HTML, HTML→markdown, and universal document import. Target: technical writers, bloggers, developers.

Markdown and HTML conversion has been a solved problem for years — Pandoc handles the core transformation for free, and every major static site generator bundles similar tooling. The "bidirectional with beautiful output" angle is a marginal UX bet, not a differentiated product, and the revenue ceiling of $1.5k/month reflects that ceiling accurately: the audience skews developer, meaning they'll reach for a CLI tool or a free web converter before paying a subscription. No single incumbent dominates the polished-UI layer, but the substitutes are so abundant and free that willingness to pay is structurally low. The most likely failure mode is building a technically solid tool that nobody pays for because the problem feels too small and too solved to justify a credit card.