Online MD5 Hash Calculator


Usage FAQ

Usage from Address Bar

You can use direct access to this page from your browser address bar. Type string that you need to encode with algorithm according to next schema: https://md5calc.com/hash/<ALGORITHM>/<PHRASE> For example to visit page that contains hash of "hello world" you can just visit url: https://md5calc.com/hash/md5/hello+world The another cool thing is that you can specify "json" or "plain" mode into URL and you will get only HASH in response. Schema of this future: https://md5calc.com/hash/<ALGORITHM>.<OUTPUT:plain|json>/<PHRASE> Example: https://md5calc.com/hash/md5.json/hello+world Will output only: "5eb63bbbe01eeed093cb22bb8f5acdc3"


Usage from PHP

You can use direct access to hash in your applications.

PHP Example: <?php
$str = 'hello world';
$url ='https://md5calc.com/hash/md5.plain/'.urlencode($str);
$md5hash = file_get_contents($url);
echo 'Hash of "'.$str.'" is "'.$md5hash.'"';
Will output: Hash of "hello world" is "5eb63bbbe01eeed093cb22bb8f5acdc3"

How to calculate md5 hash in PHP with hash function

Since version 5.1.2 PHP contains function hash() that you can use to get md5 hash from strings.

<?php
    $str = '¡Hola!';
    $hash = hash('md5', $str, false);
    echo '<pre>';
    echo $str.PHP_EOL
         .' &rarr; '.$hash.PHP_EOL
    ;
    echo '</pre>';

How to calculate MD5 hash in PHP with md5 function

md5() function - the mot popular way to get md5 hash in PHP

<?php
    $str = '¡Hola!';
    $hash = md5($str);
    echo '<pre>';
    echo $str.PHP_EOL
         .' &rarr; '.$hash.PHP_EOL
    ;
    echo '</pre>';

How to calculate MD5 hash in JavaScript

The Javascript has not built-in function to calculate MD5 hash, so you need one of the external libraries. For example: emn178/js-md5

<script src="https://cdn.jsdelivr.net/npm/js-md5@0.7.3/src/md5.js"></script>
<script>
    var str = '¡Hola!';
    var hash = md5(str);
    console.log(str);
    console.log('-> ' + hash);
</script>

How to calculate MD5 hash in Java

To calculate MD5 hash in Java use "MessageDigest" class from "java.security" namespace

String str = "¡Hola!";
 java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
md.update(str.getBytes());
 byte byteData[] = md.digest();
 //convert the byte to hex format
StringBuffer sb = new StringBuffer();
for (int i = 0; i < byteData.length; i++) {
    sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1));
}
 System.out.println(str + "\n-> " + sb.toString());

How to calculate MD5 hash in C#

The easiest way to get MD5 hash in C# is use "MD5" class from "System.Security.Cryptography" namespace

string str = @"¡Hola!";
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
    byte[] inputBytes = new System.Text.UTF8Encoding().GetBytes(str);
    byte[] hashBytes = md5.ComputeHash(inputBytes);
     // Convert the byte array to hexadecimal string
    System.Text.StringBuilder sb = new System.Text.StringBuilder();
    for (int i = 0; i < hashBytes.Length; i++)
    {
        sb.Append(hashBytes[i].ToString("X2"));
    }
     Console.WriteLine(sb.ToString());
}

How to calculate MD5 hash in Go

To calculate MD5 hash in Go use "md5" package from "crypto" namespace

package main
 import (
    "crypto/md5"
    "fmt"
)
 func main() {
    data := []byte("¡Hola!")
    fmt.Printf("%x", md5.Sum(data))
}