URL Decode Online Tool

This online url decode tool helps you to convert one url format String into a regular string.

HTTP GET request often contains parameters. However, the potential unsafe ASCII within parameters can mess up the server. To address this problem, browser will automatically replace unsafe ASCII characters with % followed by 2 numbers. For example '&' will be replaced by '%26' and space will be replaced by '%20'.

Example: Url can contains various of parameters, sometime url contain another url as a parameter. For example:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://wordpress.org

In this case, web server will be confused, so the browser encode all the parameters to:

https://www.google.com/url?sa%3Dt%26source%3Dweb%26rct%3Dj%26url%3Dhttps%3A%2F%2Fwordpress.org

Absolutely NOT, this URL Decode doing all the formatting work on the client side, all logic are implemented by Javascript. There are 2 major advantages: 1.Your data never transmitted in the Open Internet, so you know it's secure; 2.It's much faster than doing all the work in the server side, because there is no Internet Delay.

import urllib.parse


def url_decode(input_str):
    output_msg = urllib.parse.unquote(input_str).strip()
    return output_msg
    

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;

public class URL {
    public static String url_decode(String url) throws UnsupportedEncodingException {
        return URLDecoder.decode(url, "UTF-8");
    }

    public static void main(String[] args) throws UnsupportedEncodingException {
        String result = url_decode("https%3A%2F%2Fmaps.google.com%2Fmaps%3Fll%3D37.413323%2C-122.081267%26z%3D11%26q%3DMountain+View+California+USA");
        System.out.println(result);
    }
}

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https://maps.google.com/maps?ll=37.413323,-122.081267&z=11&q=Mountain View California USA