portless

Create named .localhost URLs for local development servers.

Updated May 2, 2026
One-click install
npx skills add https://github.com/mpppk/roadmap-tool --skill portless-mpppk
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: portless
Source: https://github.com/mpppk/roadmap-tool/tree/main/.agents/skills/portless
Command: npx skills add https://github.com/mpppk/roadmap-tool --skill portless-mpppk

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

Developers face challenges with port conflicts, memorizing ports, and sharing URLs during local development.

Core Features & Use Cases

  • Named URLs for Local Servers: Replace ports with memorable, stable .localhost URLs for easier access.
  • Proxy & Automation: Automatically proxy dev servers, handling TLS, LAN mode, and subdomains without manual setup.
  • Use Case: Imagine working with multiple services in a monorepo; portless enables seamless, conflict-free access via custom URLs like myapp.localhost or api.myapp.localhost.

Quick Start

Run your development server with portless to access it through a predictable, named URL.

Frequently Asked Questions about portless

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I access local development servers without memorizing port numbers?

Access local development servers without memorizing port numbers by using named, portless .localhost URLs. This approach replaces raw ports with stable, memorable domains, streamlining your workflow and preventing port conflicts across different services.

What is the best way to manage multiple local dev server URLs in a monorepo?

Managing multiple local dev server URLs in a monorepo is best handled by assigning custom, conflict-free domains like myapp.localhost or api.myapp.localhost. This ensures consistent, memorable access across team environments without manual port configuration.

Can I share my localhost development server over a public network or Tailscale?

Yes, you can share your localhost development server over a public network or Tailscale. The proxying mechanism supports sharing local dev URLs via Tailscale or the public internet, allowing external access to your local environment.

Does the portless proxy support TLS and LAN mode for local development?

Yes, the portless proxy supports TLS and LAN mode for local development. It automatically handles proxying dev servers, TLS configuration, and LAN mode access without requiring manual setup for each service.

How do I set up custom local domains for my development automation scripts?

Set up custom local domains for development automation scripts by running your dev server with the portless proxy. It provides predictable, named URLs that automation scripts can reliably target, eliminating hardcoded port dependencies.

Why do I get port conflicts when running multiple local development servers?

Port conflicts occur when multiple local development servers attempt to use the same port simultaneously. Using named, portless .localhost URLs resolves this by routing traffic via a proxy, eliminating the need to manage raw port assignments manually.