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What is Sher?

Sher is a CLI tool that builds your frontend project and gives you a live preview URL in seconds. Instead of pushing to a branch and waiting for CI/CD or setting up a Vercel project, you can share your work instantly with a single command. 
sher link
That’s it. Sher builds your project, uploads it, and returns a shareable URL that expires after 24 hours by default.

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The Problem Sher Solves

Sharing work in progress is harder than it should be:
  • Git commits for every demo - You don’t want to commit half-finished work just to show someone
  • Complex CI/CD setup - Preview deployments require branch protection, webhooks, and configuration
  • Slow feedback loops - Waiting for builds to run before sharing a link wastes time
  • Overhead for quick tests - Sometimes you just want to see if something works on mobile or share a quick prototype
Sher removes all of this friction. Build locally, get a link, share it.

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Key Features

Framework Auto-Detection

Automatically detects Vite, Next.js, Astro, Create React App, and custom build setups

Package Manager Support

Works with npm, yarn, pnpm, and bun - no configuration needed

Static Export Handling

Next.js projects are automatically configured for static export

Password Protection

Protect your previews with passwords (Pro tier)

Ephemeral URLs

Links expire automatically (6 hours to 7 days depending on tier)

Deployment Management

List and delete your active deployments

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Use Cases

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Quick Client Previews

Show clients work in progress without deploying to production or creating a staging branch: 
sher link --ttl 48
Send the link, get feedback, iterate.

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Testing on Real Devices

Quickly test your local build on mobile devices without ngrok or network configuration: 
sher link --no-build
Open the URL on your phone and test immediately.

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AI Coding Agents

Sher is designed to work with AI agents that need to deploy what they build. Install the agent skill: 
px skills add sherdotsh/sher
Agents can use sher link to deploy their work and return a live URL.

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Team Collaboration

Share prototypes and experiments with teammates without cluttering your Git history: 
sher link --pass
The link is password-protected and expires automatically.

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How It Works

1

Build Detection

Sher detects your framework (Vite, Next.js, Astro, etc.) and package manager (npm, yarn, pnpm, bun) automatically.
2

Build Execution

Runs your build script (typically npm run build) to generate static output.
3

File Collection

Collects all files from your output directory (dist/, build/, or out/).
4

Upload & Deploy

Uploads files to Cloudflare R2 and returns a public URL hosted on Cloudflare Workers.
Sher runs entirely on Cloudflare infrastructure (Workers + R2) and can be self-hosted if needed.

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Pricing Tiers

Sher offers three tiers to fit different use cases:
FeatureFreeStarterPro
Price$0$0 (GitHub login)$8/mo
Links per day125200
Max TTL6 hours24 hours7 days
Max upload size10 MB50 MB100 MB
Password protection--✓
List & delete links-✓✓
Run sher login to authenticate with GitHub and unlock the Starter tier (free). Run sher upgrade to subscribe to Pro.

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Next Steps

Installation

Install Sher globally with npm, yarn, pnpm, or bun

Quickstart

Deploy your first project in under 60 seconds

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