I built Basealign, a web

I built Basealign, a web tool that helps developers instantly check their code for Baseline compatibility and accessibility issues, together with @Johannes Specht.

You can paste your HTML, CSS, or JavaScript, and Basealign analyzes it in real time, highlighting features that aren’t part of the shared browser baseline and scoring issues by severity.

We built it with React + TypeScript, powered by axe-core for accessibility insights and the web-features dataset for accurate browser support data. Our goal was to create a developer experience that feels fast, visual, and intuitive, making complex compatibility checks effortless.

🔗 Try it live: https://basealign.de