How to Detect a User's Country and Currency from the IP in JavaScript

📰 Dev.to · Abdul Mateen

Detect a user's country and currency from their IP in JavaScript using the IPGeolocation.io API

intermediate Published 23 Apr 2026

Action Steps

Sign up for an API key on IPGeolocation.io
Use the Fetch API to make a GET request to the IPGeolocation.io API with your API key
Parse the JSON response to extract the user's country and currency data
Use the extracted data to personalize the user's experience, such as displaying prices in their local currency
Handle errors and edge cases, such as API rate limits or invalid responses

Who Needs to Know This

This benefits frontend developers and designers who need to personalize user experiences based on location, and backend developers who require geolocation data for analytics or security purposes.

Key Insight

💡 The IPGeolocation.io API provides a simple and effective way to detect a user's country and currency from their IP address in JavaScript