sher is a tiny CLI that exposes whatever you're building locally over a public preview URL. Run sher in a Vite, Next.js, Astro or plain HTML project and it serves the dev output through a tunnel; you copy the link, paste it to a coworker or client, and they see the live state of your machine in their browser.

No signup, no config file, no separate account flow — that's the whole pitch. It overlaps with tools like ngrok or Cloudflare Tunnel but optimizes for the "share this preview right now" use case: minimum ceremony, just one command. Free to use; built for indie devs and design-handoff moments where you don't want to bother with a deploy.