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Localhost port manager - Electron desktop app for managing dev ports and apps

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PortPilot

Localhost Port Manager for Windows & Linux — A desktop app for developers to manage local development ports and applications.

View Landing Page & Download

MCP Integration Setup

Version Tests Licence MCP

PortPilot

📑 Table of Contents

✨ NEW: AI Agent Integration

Control PortPilot with natural language! Works with Claude Code, Cursor, Windsurf, and any MCP-compatible AI assistant.

"Start the azure-practice-exam-platform app"
"What's running on port 3001?"
"Kill whatever is running on port 3000"

→ Setup MCP Integration

What's New in v1.6.2

Documentation & UI Cleanup

  • Icon-Based Action Buttons — START/STOP buttons now use intuitive green play (▶) and red square (■) icons for better visual scanning
  • Removed Expand All/Collapse All Buttons — Commands now show in tooltips, no need for button clutter
  • Comprehensive Auto Detection Documentation — README now includes detailed docs for all 8 language detectors
  • Table of Contents — Easy navigation through README sections
  • Updated Landing Page — Added 4 new language detector badges (Go, .NET, Rust, Ruby)
  • Knowledge Base Updates — Framework details for new language detectors

Language Detector Documentation Added

Complete detection criteria, supported frameworks, port detection methods, and confidence scoring for:

  • Node.js (React, Next.js, Vue, Angular, Vite, Express, Fastify)
  • Python (FastAPI, Django, Flask)
  • Docker (docker-compose, Dockerfile)
  • Go (Gin, Fiber, Echo) ✨
  • .NET (ASP.NET Core) ✨
  • Rust (Actix-web, Rocket, Axum, Warp) ✨
  • Ruby (Rails, Sinatra, Rack) ✨
  • Static Sites

What's New in v1.6.1

Enhanced Port Cards

  • CMD Icon with Hover Tooltip — Black CMD badge shows full command path on hover with copy button
  • Single-Row Layout — Removed second row, CMD tooltip replaces expandable command display
  • Brighter Stats — Improved visibility of Memory, Uptime, and Connections badges
  • Cleaner Design — More compact while showing all essential information

Knowledge Carousel System

  • Horizontal Navigation — 13 tabs for easy access to all help sections
  • Single Card View — Clean, focused presentation with smooth transitions
  • v1.6.2 Documentation — New sections for Port Cards and Port Actions features
  • Enhanced Troubleshooting — Added FAQs for new features (N/A values, bind indicators)

App Card Enhancements

  • Folder Button — 📂 icon opens app's working directory in file explorer
  • Consistent UX — Matches port card folder button functionality
  • Quick Access — One-click navigation to project files

UI Refinements

  • Aligned Keyboard Shortcuts — Fixed grid layout with centered keys
  • Wider CMD Tooltips — Increased from 500px to 600px with scrolling support
  • Better Text Wrapping — Improved long command path display

What's New in v1.6.0

Compact & Sharp UI Redesign

  • 30-40% More Density — See more apps and ports on screen without scrolling
  • Sharp 2px Corners — Modern, clean aesthetic (down from 8px)
  • Tighter Spacing — Reduced padding and gaps throughout
  • Compact Port Cards — Process and PID combined on one line for space efficiency
  • Smaller Fonts — Better information density while maintaining readability

MCP Auto-Refresh

  • External Changes Detected — Automatically refreshes when MCP or other tools modify config
  • File Watcher — Monitors config file for changes with 100ms debounce
  • Toast Notifications — Visual feedback when apps list updates externally
  • No Restart Required — Apps added via MCP appear instantly

Smart Window Auto-Resize

  • Dynamic Height — Window grows/shrinks based on number of apps
  • Optimal Sizing — 400px minimum, 1200px maximum
  • Seamless Integration — Works with MCP auto-refresh
  • Better UX — No wasted space, no excessive scrolling

Enhanced Testing

  • 100% Test Coverage — All 11 E2E tests passing
  • Integrated Test Servers — HTTP servers on ports 3000, 3001, 8080
  • Test Mode Support — Singleton lock bypass for running tests alongside GUI
  • Improved Reliability — Fixed visibility issues, better wait strategies

Bug Fixes

  • ConfigStore Null Reference — Fixed critical crash on startup
  • Test Infrastructure — All tests now passing reliably
  • Load Strategy — Improved app initialization wait logic

See full changelog →

What's New in v1.5.0

Linux Platform Support

  • Cross-Platform Builds — Now officially supports Windows AND Linux
  • AppImage Package — Universal Linux binary that runs on any distro (98 MB)
  • .deb Package — Native Debian/Ubuntu installer (69 MB)
  • WSL Testing — Full testing support in Windows Subsystem for Linux
  • Platform Auto-Detection — Automatically adapts commands for Windows/Linux

System Tray & Window Behaviour

  • Stop All Apps from Tray — Right-click tray icon to stop all PortPilot-managed apps without quitting
  • Configurable Window Behaviour — Choose whether close button minimises to tray or exits completely
  • Smart Process Cleanup — Optionally stop all apps when quitting (only affects PortPilot-managed processes)
  • External Process Safety — Never touches processes started outside PortPilot

Single-Instance Lock

  • One Instance Only — Prevents multiple copies of PortPilot from running simultaneously
  • Smart Window Focusing — Launching a second instance automatically focuses the existing window
  • No More Confusion — Single system tray icon, clear state management

See full changelog →

What's New in v1.4.0

Browse & Auto-detect Project

  • One-Click Project Setup — Click "Browse & Auto-detect" in Add App modal to automatically configure any project
  • Recursive Scanning — Finds projects up to 2 levels deep in subdirectories
  • Package Manager Detection — Auto-detects pnpm, yarn, or npm and uses the correct command
  • Smart Port Detection — Only uses explicit port config (no more "everything gets port 3000")
  • Works with Monorepos — Finds the actual project inside parent folders (e.g., manual-build/ inside root)

Port Conflict Warnings

  • Unknown Process Detection — Warns when unknown processes block your app's preferred port
  • 🌐 Preview Button — Click globe to see what's running on the blocked port
  • Kill Blocker Button — Terminate blocking processes with one click
  • Toast Notifications — Visual warnings when port conflicts are detected
  • Improved Matching — Two-phase algorithm with keyword extraction prevents false positives

Project Auto-Discovery

  • Automatic Project Detection — Scan your project directories to automatically discover Node.js, Docker, Python, and static site projects
  • Smart Metadata Extraction — Automatically detects project names, start commands, and ports
  • User-Configurable Paths — Add your own scan directories (e.g., C:\Projects, C:\Dev)
  • Confidence Scoring — Shows match confidence (95%, 85%, etc.) for each discovered project
  • Bulk Import — Add all discovered projects at once or pick individual ones
  • Scan Depth Control — Configure how deep to search (1-5 directory levels)

Favorites System

  • Star Your Apps — Click the star (⭐/☆) button to mark frequently-used apps as favorites
  • Organized Sections — Apps automatically organised into:
    • ⭐ Favorites — Starred apps at the top for quick access
    • 📁 Other Projects — Non-starred apps below
  • Collapsible Sections — Click section headers to expand/collapse
  • Persistent State — Section collapse state saved across app restarts

Delete All

  • Bulk Delete — Remove all apps in one click with "Delete All" button
  • Safety First — Strong confirmation modal warns before deletion
  • Export Reminder — Prompts to export config before deleting

See full changelog →

Features

  • 🔍 Browse & Auto-detect — One-click project setup with recursive scanning and package manager detection
  • ⚠️ Port Conflict Warnings — Visual warnings when unknown processes block app ports, with preview and kill options
  • 🔍 Project Auto-Discovery — Scan directories to automatically find and import dev projects (Node.js, Docker, Python, static sites)
  • ⭐ Favorites — Star frequently-used apps for quick access with collapsible sections
  • 🗑 Bulk Operations — Delete all apps at once with safety confirmations
  • Port Scanner — Discover all active TCP ports with process details (name, PID, command line)
  • One-Click Kill — Free up stuck ports instantly
  • App Registry — Register your dev projects with start commands and preferred ports
  • Process Management — Start/stop apps directly from PortPilot
  • Smart Port Matching — Two-phase algorithm with CWD validation and keyword extraction for accurate detection
  • Requirement Badges — Visual indicators for Docker, Node.js, Python, and more
  • Docker Integration — Click to start Docker Desktop, with status detection
  • IPv4/IPv6 Awareness — Shows which protocol your app is bound to
  • System Tray — Minimize to tray, "Stop All Apps" menu option, configurable window behaviour
  • Single-Instance Lock — Only one PortPilot runs at a time, focuses existing window
  • Multi-Theme Support — 6 themes including TokyoNight, Brutalist, Nord, Dracula
  • Knowledge Base — Built-in help with tips, shortcuts, and common ports reference

Auto Detection

PortPilot automatically detects 8 different languages and platforms when you use "🔍 Browse & Auto-detect Project" or Project Auto-Discovery. Detection is intelligent, framework-aware, and includes confidence scoring.

Supported Languages & Frameworks

📦 Node.js

Detection Criteria:

  • package.json file present
  • Package manager files: package-lock.json, yarn.lock, pnpm-lock.yaml, bun.lockb

Supported Frameworks:

  • React, Next.js, Vue, Angular, Vite
  • Express, Fastify, Nest.js
  • Gatsby, Nuxt, SvelteKit

Port Detection:

  • Reads package.json scripts for port numbers (e.g., --port 3000)
  • Checks Vite/Next.js config files
  • Checks .env files for PORT variable

Default Values:

  • Port: 3000
  • Command: Auto-detected package manager (pnpm run dev, yarn dev, npm run dev)
  • Confidence: 90-95%

🐍 Python

Detection Criteria:

  • requirements.txt, pyproject.toml, or Pipfile present
  • Python files with common framework imports

Supported Frameworks:

  • FastAPI (port 8000)
  • Django (port 8000)
  • Flask (port 5000)

Port Detection:

  • Scans Python files for uvicorn.run(), app.run() with port arguments
  • Checks framework-specific config files

Default Values:

  • Port: 8000 (FastAPI/Django), 5000 (Flask)
  • Command: Framework-specific (uvicorn main:app, python manage.py runserver, flask run)
  • Confidence: 85-90%

🐳 Docker

Detection Criteria:

  • docker-compose.yml or docker-compose.yaml present
  • Dockerfile present

Port Detection:

  • Parses docker-compose.yml for exposed ports
  • Reads port mappings (e.g., 3000:3000, 8080:80)

Default Values:

  • Port: Extracted from compose file
  • Command: docker compose up or docker-compose up
  • Confidence: 95%

🔷 Go

Detection Criteria:

  • go.mod file present
  • main.go file present

Supported Frameworks:

  • Gin (port 8080)
  • Fiber (port 3000)
  • Echo (port 1323)

Port Detection:

  • Scans go.mod for framework dependencies
  • Parses main.go for port literals (e.g., :8080)

Default Values:

  • Port: 8080 (Gin), 3000 (Fiber), 1323 (Echo)
  • Command: go run .
  • Confidence: 80-95%

⚙️ .NET / C#

Detection Criteria:

  • .csproj file present
  • .sln solution file present

Supported Frameworks:

  • ASP.NET Core

Port Detection:

  • Reads Properties/launchSettings.json for applicationUrl
  • Parses port from URLs (e.g., https://localhost:5001)

Default Values:

  • Port: 5000
  • Command: dotnet run
  • Confidence: 85-95%

🦀 Rust

Detection Criteria:

  • Cargo.toml file present

Supported Frameworks:

  • Actix-web (port 8080)
  • Rocket (port 8000)
  • Axum (port 3000)
  • Warp (port 3030)

Port Detection:

  • Scans Cargo.toml dependencies for framework
  • Parses src/main.rs for bind() or listen() with port

Default Values:

  • Port: Framework-specific (see above)
  • Command: cargo run
  • Confidence: 85-95%

💎 Ruby

Detection Criteria:

  • Gemfile file present
  • config.ru file present
  • Rakefile present

Supported Frameworks:

  • Ruby on Rails (port 3000)
  • Sinatra (port 4567)
  • Rack (port 9292)

Port Detection:

  • Checks for config/application.rb (Rails)
  • Reads Gemfile for framework gems

Default Values:

  • Port: 3000 (Rails), 4567 (Sinatra), 9292 (Rack)
  • Command: rails server, ruby app.rb, or rackup
  • Confidence: 70-95%

🌐 Static Sites

Detection Criteria:

  • index.html in root directory
  • No backend framework files present

Port Detection:

  • No port needed (serves HTML directly)

Default Values:

  • Port: N/A
  • Command: N/A
  • Confidence: 80%

Detection Priority

Detectors run in priority order (highest to lowest):

  1. Docker (95) — Most explicit configuration
  2. Node.js (90) — Very common, well-structured
  3. Go (85)
  4. .NET (85)
  5. Rust (85)
  6. Ruby (85)
  7. Python (80) — Lower due to less standardized structure
  8. Static Sites (60) — Fallback for simple projects

If multiple detectors match, the highest-priority one wins.

Confidence Scoring

Score Meaning
95%+ Exact port found in config file
85-94% Framework detected, using framework default port
70-84% Files detected, using language default port
<70% Weak match, manual verification recommended

Screenshots

Explore all PortPilot features including My Apps management, Active Ports scanner, Knowledge Base, Settings, multiple themes, and more.

PortPilot Features

Installation

Download (Recommended)

Latest Release: v1.6.2

Windows:

Linux:

macOS:

  • Build from source (see below) — macOS is supported but not officially tested

Build from Source

# Clone the repo
git clone https://github.com/m4cd4r4/PortPilot.git
cd PortPilot

# Install dependencies
npm install

# Run the app
npm start

# Build for your platform
npm run build              # Windows (NSIS installer)
npm run build:linux        # Linux (AppImage + .deb)
npm run build:all-platforms  # Both Windows and Linux

Note for VSCode/Claude Code users: The app automatically clears the ELECTRON_RUN_AS_NODE environment variable via launch.js.

Usage

Scan Ports

Click "Scan Ports" to discover all listening TCP ports. You'll see:

  • Port number (large and prominent!)
  • Process name
  • PID
  • Command line (with clean ellipsis for long paths)

Click the ❌ button to kill any process.

Register Apps

Option 1: Auto-detect (Recommended)

  1. Click "Add App"
  2. Click "🔍 Browse & Auto-detect Project"
  3. Select your project folder (e.g., C:\Scratch\MyApp)
  4. PortPilot automatically fills in:
    • Name from package.json
    • Command with the correct package manager (pnpm run dev, yarn dev, npm run dev)
    • Working Directory path
    • Preferred Port from config files (if found)
  5. Review and edit if needed
  6. Click "Save App"

Option 2: Manual Entry

  1. Click "Add App"
  2. Fill in:
    • Name: Display name (e.g., "AzurePrep Frontend")
    • Command: Start command (e.g., npm run dev)
    • Working Directory: Project folder path
    • Preferred Port: The port your app should use (or leave blank to assign later)
    • Fallback Range: Alternative ports if preferred is taken (e.g., 3001-3010)
  3. Click "Save App"

Now you can start/stop your apps directly from PortPilot with visual countdown feedback!

Handle Port Conflicts

When a port is blocked by an unknown process:

  1. You'll see "⚠️ Port Blocked" status on the app card
  2. Click 🌐 Globe button to preview what's running on that port
  3. Click "Kill Blocker" to terminate the blocking process
  4. Click "Start" to launch your app

App Badges

PortPilot automatically detects app requirements and shows badges:

Badge Meaning Detected When
🐳 Docker app Command includes docker or compose
📦 Node.js app Command includes npm, npx, pnpm, yarn, or bun
🐍 Python app Command includes python, uvicorn, flask, or django
🗄️ Database Command includes postgres, mysql, redis, or mongo
⚡ Auto-start App configured to start on launch
🌐 Remote App runs on remote server/VPS

Docker Integration

  • Yellow pulsing 🐳 — Docker Desktop is not running (click to start)
  • Green 🐳 — Docker Desktop is running and ready

IPv4/IPv6 Indicators

When apps are running, PortPilot shows v4 or v6 to indicate the IP protocol:

  • v4 — Bound to IPv4 (e.g., 0.0.0.0:3000)
  • v6 — Bound to IPv6 (e.g., [::]:3000)

This ensures the browser button opens the correct URL.

Themes

Theme Description
TokyoNight Dark blue with cyan/magenta accents (default)
Brutalist Dark Pure black, yellow/cyan, monospace
Brutalist Light White with black borders, yellow highlights
Nord Cool arctic blues
Dracula Purple/pink dark theme
Solarized Light Warm, easy on the eyes

Keyboard Shortcuts

Shortcut Action
Ctrl+R Refresh/Scan ports
Ctrl+N Add new app
Ctrl+1 Ports tab
Ctrl+2 Apps tab
Ctrl+3 Knowledge tab
Ctrl+4 Settings tab
Escape Close modal

Config Location

Your config is stored at:

  • Windows: %APPDATA%/portpilot/portpilot-config.json
  • macOS: ~/Library/Application Support/portpilot/portpilot-config.json
  • Linux: ~/.config/portpilot/portpilot-config.json

Example Config

{
  "apps": [
    {
      "id": "app_azureprep",
      "name": "AzurePrep",
      "command": "npm run web",
      "cwd": "C:\\Scratch\\azure-practice-exam-platform",
      "preferredPort": 3001,
      "fallbackRange": [3002, 3010],
      "color": "#84CC16",
      "autoStart": false
    }
  ],
  "settings": {
    "autoScan": true,
    "scanInterval": 5000,
    "openDevTools": false
  }
}

Development

# Install dependencies
npm install

# Run in development
npm start

# Run in dev mode (with DevTools if enabled)
npm run dev

# Run all tests
npm run test:all

# Take screenshots
npm run screenshots

# Build installers
npm run build:all

Testing

PortPilot includes a comprehensive Playwright E2E test suite with 100% test coverage.

# Run all tests (20 tests)
npm run test:all

# Run core functionality tests (11 tests)
npm test

# Run v1.3.0 feature tests (9 tests)
npm run test:v1.3

# Generate UI screenshots
npm run screenshots

Test Coverage:

  • ✅ UI rendering and navigation (100%)
  • ✅ Port scanning functionality (100%)
  • ✅ Port filtering (100%)
  • ✅ Port killing (100%)
  • ✅ Process cleanup (100%)
  • ✅ Settings persistence (100%)
  • ✅ DevTools toggling (100%)
  • ✅ App configuration editing (100%)

Total: 20/20 tests passing — See TESTING_SUMMARY.md for details.

✨ AI Agent Integration (MCP)

PortPilot includes an MCP (Model Context Protocol) server that lets any compatible AI assistant manage your development environment with natural language.

Compatible Tools

Works with any MCP-enabled AI assistant:

  • Claude Code (CLI)
  • Claude Desktop
  • Cursor
  • Windsurf
  • Cline

Setup

# Install MCP server dependencies
cd mcp-server && npm install && cd ..

# Add to Claude Code
claude mcp add portpilot -- node "C:\path\to\PortPilot\mcp-server\index.js"

# Verify connection
claude mcp list
# Should show: portpilot: ... - ✓ Connected

Restart your AI tool after adding to load the new tools.

Example Commands

Just ask in natural language:

"List all my PortPilot apps"
"Start the azure-practice-exam-platform app"
"What's running on port 3001?"
"Add a new app called 'hero-concepts-preview' at C:\Scratch\azure-practice-exam-platform with command 'npm run web' on port 3001"
"Stop mocksnap"
"Kill whatever is running on port 3000"
"Delete all apps from PortPilot"
"Favorite the AzurePrep app"

Available Tools

Tool Description
list_apps List all registered apps
get_app Get details of a specific app
start_app Start an app by name or ID
stop_app Stop a running app
add_app Register a new app
update_app Update app configuration
delete_app Remove an app
list_running Show currently running apps
scan_ports Scan for active ports
kill_port Kill process on a port
toggle_favorite Star/unstar an app
delete_all_apps Remove all apps (requires confirmation)

See mcp-server/README.md for full documentation.

Tech Stack

  • Electron 27 — Cross-platform desktop framework
  • Node.js — Process management and port scanning
  • Playwright — End-to-end testing
  • Vanilla JS — No framework bloat, lightweight and fast
  • CSS Variables — Powerful theme system
  • Native Commands — netstat (Windows) / lsof (Mac/Linux)

Version History

v1.4.0 (2026-01-06) — Current Release

  • 🔍 Browse & Auto-detect — One-click project setup with recursive scanning
  • 📦 Package Manager Detection — Auto-detects pnpm, yarn, npm
  • ⚠️ Port Conflict Warnings — Visual warnings with preview and kill options
  • 🔍 Project Auto-Discovery — Bulk scan and import projects
  • ⭐ Favorites System — Star apps for quick access
  • 🗑 Delete All — Bulk delete with safety confirmations
  • ✨ Improved Port Matching — Two-phase algorithm with keyword extraction
  • ✨ Smart Port Detection — No more hard-coded framework defaults

v1.3.0 (2026-01-05)

  • 7 new features (DevTools, process cleanup, port conflict detection, etc.)
  • 7 UI/UX improvements (larger port numbers, better spacing, improved readability)
  • 100% test coverage (20/20 tests passing)
  • Comprehensive documentation (CHANGELOG.md, TESTING_SUMMARY.md)

v1.2.0

  • Fixed port kill functionality
  • Added comprehensive test suite

v1.1.0

  • Initial release with core features
  • Multi-theme support
  • App registry and management

Full changelog →

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Licence

MIT © Macdara

Built for developers who juggle multiple localhost apps

🚀 Download Latest Release | 📖 Documentation | 🐛 Report Issues

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Localhost port manager - Electron desktop app for managing dev ports and apps

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v1.6.2 Latest
Jan 13, 2026
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