Random Port Generator

A Random Port Generator creates TCP or UDP port numbers from specified ranges for network applications, development, and testing. Ports are endpoint identifiers in networking (0-65535), divided into well-known ports (0-1023), registered ports (1024-49151), and dynamic/private ports (49152-65535).

Our tool generates random ports from any range with collision detection, ensuring unique port selections for multi-service configurations. It highlights well-known ports with their common service names (HTTP-80, HTTPS-443, SSH-22) and validates against reserved port assignments.

Development and testing often require non-standard ports to avoid conflicts with system services. Random port selection prevents collisions in multi-service environments, containerized applications, and testing scenarios where multiple instances run simultaneously on the same host.

Perfect for developers configuring microservices, DevOps engineers setting up container ports, system administrators avoiding port conflicts, QA engineers testing port configurations, and students learning network programming with safe port ranges.

Development & Testing: Generate unique ports for local development servers, test environments, and CI/CD pipelines to prevent port conflicts when running multiple services.

Container Orchestration: Select random host ports for Docker containers, Kubernetes NodePorts, and service mesh configurations without conflicting with system services.

Configuration Management: Generate port numbers for microservice configurations, load balancers, proxies, and distributed systems requiring unique network endpoints.

Select the port range: well-known (0-1023, requires admin privileges), registered (1024-49151, common application ports), dynamic (49152-65535, recommended for testing), or specify a custom range. Choose to generate single or multiple ports.

Generate random port numbers instantly. The tool checks against common service ports and highlights any well-known port assignments. Copy generated ports for use in configuration files, Docker Compose files, or application settings.