Sher: The Preview URL Tool You Haven't Heard Of

You haven't heard of sher, but you should have. It's the CLI tool that generates instant preview URLs for your local development projects, and it's better than the alternatives you're probably using.

The Problem It Solves

Every vibecoder has been there: you've got something running on localhost that you need to show someone. Maybe it's a client review, maybe it's a teammate debugging, maybe it's just sharing a quick prototype.

Your options suck. ngrok works but the free tier is limited and the URLs are ugly. Vercel preview deployments are great but require pushing to git first. Most tools are either overkill or under-powered for the simple task of "share localhost quickly."

Why Sher Is Different

Built specifically for modern dev workflows, sher supports Vite, Next.js, and Astro out of the box. No configuration files, no account setup for basic usage, no vendor lock-in. Just run sher in your project directory and get a clean preview URL.

The tool is open-source and freemium, with video demos showing actual polish. This isn't some weekend hackathon project — it's a focused solution to a daily developer pain point.

The Underground Pick Test

Sher keeps appearing in developer tool roundups as an "underground pick," which usually means it solves a real problem but lacks marketing budget. The fact that it's repeatedly mentioned suggests developers who find it actually stick with it.

That's the mark of a tool that works: organic word-of-mouth from people who tried it and kept using it.

Check it out at sher.sh — sometimes the best tools are the ones nobody's talking about.