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---
title: crypto.MD5
linkTitle: md5
description: hashes the given input and returns its MD5 checksum.
categories: [functions]
keywords: []
menu:
docs:
parent: functions
function:
aliases: [md5]
returnType: string
signatures: [crypto.MD5 INPUT]
relatedFunctions:
- crypto.FNV32a
- crypto.HMAC
- crypto.MD5
- crypto.SHA1
- crypto.SHA256
aliases: [/functions/md5]
---
```go-html-template
{{ md5 "Hello world" }} → 3e25960a79dbc69b674cd4ec67a72c62
```
This can be useful if you want to use [Gravatar](https://en.gravatar.com/) for generating a unique avatar:
```html
<img src="https://www.gravatar.com/avatar/{{ md5 "your@email.com" }}?s=100&d=identicon">
```
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