Docs / The bar in your dev server

The bar in your dev server

The npm package for Astro and Next.js.

For Astro and Next.js projects, the notemend npm package puts the bar in your dev server — only under npm run dev, never in a production build. It is the same bar as on a live site, with a designer's tools around it.

npm i -D notemend && npx notemend init

init wires the bar in (Astro: the integration in astro.config; Next.js: a client loader, a route and transpilePackages), finds your breakpoints in the CSS, lists your pages and writes notemend.config.mjs. --yes takes every default.

What the dev bar adds

  • Inspectors — spacing, size and type in design pixels, with WCAG contrast for text.
  • A layout grid over the page, from your container and columns.
  • A breakpoint canvas — every width side by side — and device previews in real frames.
  • The page list from your routes, to jump between pages.

Where comments go

Unlinked, comments stay in the project as feedback/comments.json with screenshots in feedback/images/ — no account needed. npx notemend login and link send them to a cabinet project instead, shared with the team and the live site's bar.