Know Your Ports
What usually runs on common localhost ports, and how to fix them when they won't load.
localhost:1313
Hugo Static Site Generator
The default port for Hugo static site generator development server and live reload functionality.
localhost:1337
Jan Local AI
The default port for Jan, an open-source alternative to ChatGPT that runs entirely offline.
localhost:3000
Development Server
The most popular development server port used by React, Express.js, Rails, and many other frameworks.
localhost:3001
AnythingLLM Workspace
The default port for AnythingLLM, an all-in-one desktop AI app for local models.
localhost:3080
LibreChat Web App
The default port for LibreChat, a powerful open-source ChatGPT clone.
localhost:3210
LobeChat Application
The default port for LobeChat, an open-source, modern-design AI chat framework.
localhost:4200
Angular Development Server
The default port for Angular development server used by Angular CLI and modern frontend development.
localhost:4891
GPT4All API
The default port for the GPT4All local API server.
localhost:5173
Vite Development Server
The default port for Vite development server used by Vue.js, React, and modern frontend frameworks.
localhost:5432
PostgreSQL Database
The default port for PostgreSQL database server, connections, and development workflows.
localhost:8000
Python and Development Server
The popular port used by Django, Python HTTP servers, and various development frameworks.
localhost:8080
Web Server and Application
The popular alternative HTTP port used by Tomcat, Jenkins, development servers, and web applications.
localhost:9090
Prometheus Web UI
The default port of the Prometheus web UI and HTTP API, also used by the Cockpit server console and the Openfire admin console.
localhost:11434
Ollama Local LLM
The default port for Ollama, the popular open-source tool for running local LLMs.
localhost:11501
Khajane 2 (K2) Treasury App
The local port used by the Khajane 2 (K2) desktop app from Karnataka's Department of Treasuries, with fixes for certificate warnings and connection errors.