Localhost:3000
Noun · Slang · Slang & Abbreviations
Definitions
The default development URL for React, Next.js, and countless other frontend tools. The most visited URL in web development that will never make it to production.
In plain English: The web address every developer sees hundreds of times a day — it means 'my own computer, port 3000,' which is where most web development tools show your work in progress.