Sher: Instant Local Dev Previews That Actually Work

You haven't heard of Sher, but it solves a daily developer frustration that bigger tools ignore: instantly sharing local development previews.

The Problem

You're building a feature locally. Your client wants to see progress, your teammate needs to review on mobile, or you want to test across devices. Your options suck:

• Deploy to staging (slow, overkill)
• Create a GitHub repo and Vercel deploy (heavyweight)
• Describe it over Slack (useless)
• Screen share (awkward, not interactive)

What Sher Does Differently

One command generates a public URL for your localhost. That's it. No configuration, no deployment pipelines, no repository requirements.

npx sher

Your local Vite/Next.js/Astro server becomes instantly accessible via a public URL. Share the link, get feedback, iterate. When you're done, kill the process and the link dies.

Why It's Underrated

Sher focuses specifically on the dev preview use case with framework-aware optimization. While ngrok and similar tools exist, they're general-purpose tunneling solutions. Sher knows about development servers and optimizes for that workflow.

It's freemium and lightweight — perfect for the "just show me quickly" moments that happen multiple times per day.

The Comparison

ngrok costs $8/month for basic features and feels like using a sledgehammer for a thumbtack. Vercel previews require Git commits and deployment overhead. CloudFlare Tunnel needs configuration.

Sher is the bicycle solution: simple, fast, and perfectly suited for the job.

Try It

Next time you need to share local work, try npx sher instead of your usual workflow. The best tools are often the ones that solve unglamorous but real problems.

Sometimes you don't need enterprise features — you just need your localhost to have a public URL for five minutes.