How do I convert base64 to an html file?

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I am getting a mail body encoded in base64:

PCFET0NUWVBFIGh0bWw-PGhlYWQ-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-WW91IGNhbiBzaW1wbHkgV0lQRSBPdXQgeW91ciBlbWFpbCBmcm9tIE1haWxpbmcgTGlzdMKgPGEgaHJlZj0iaHR0cDovL25saWMuc3BlZWRvbWFpbGh1Yi5pbi9saXN0cy9sYzczMTdoYWhnM2Q4L3Vuc3Vic2NyaWJlL2F3MzUxYXhidHY3ZjYvZGozOTR5a2hwMzkyYy8zIiB0YXJnZXQ9Il9ibGFuayI-IGNsaWNrIGhlcmUgPC9hPjwvZGl2Pgo8aW1nIHdpZHRoPSIxIiBzcmM9Imh0dHA6Ly9ubGljLnNwZWVkb21haWxodWIuaW4vY2FtcGFpZ25zL2RqMzk0eWtocDM5MmMvdHJhY2stb3BlbmluZy9hdzM1MWF4YnR2N2Y2IiBhbHQ9IiIvPjwvYm9keT48L2h0bWw-DQoNCg==

I have an html page:

<a href="data:text/css;base64,PCFET0NUWVBFIGh0bWw-PGhlYWQ-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-WW91IGNhbiBzaW1wbHkgV0lQRSBPdXQgeW91ciBlbWFpbCBmcm9tIE1haWxpbmcgTGlzdMKgPGEgaHJlZj0iaHR0cDovL25saWMuc3BlZWRvbWFpbGh1Yi5pbi9saXN0cy9sYzczMTdoYWhnM2Q4L3Vuc3Vic2NyaWJlL2F3MzUxYXhidHY3ZjYvZGozOTR5a2hwMzkyYy8zIiB0YXJnZXQ9Il9ibGFuayI-IGNsaWNrIGhlcmUgPC9hPjwvZGl2Pgo8aW1nIHdpZHRoPSIxIiBzcmM9Imh0dHA6Ly9ubGljLnNwZWVkb21haWxodWIuaW4vY2FtcGFpZ25zL2RqMzk0eWtocDM5MmMvdHJhY2stb3BlbmluZy9hdzM1MWF4YnR2N2Y2IiBhbHQ9IiIvPjwvYm9keT48L2h0bWw-DQoNCg==" />See html</a>

which on clicking See html opens a file with html written in the form of text:

<!DOCTYPE html>
<head><meta name="charset" content="utf-8">
  <title></title>
  </head>
  <body>
    <div align="center">
      <a href="http://nlic.speedomailhub.in/campaigns/dj394ykhp392c/track-url/aw351axbtv7f6/9c18729445dcca36e45efc0daa4c94be18b198aa">
      <img alt="" src="http://hasq.speedomailhub.in/sk55119gb8900/dj394ykhp392c/vq015xz7ba1c2_1.png"></a>
    </div>
    
    <div style="text-align:center;">You can simply WIPE Out your email from Mailing List <a href="http://nlic.speedomailhub.in/lists/lc7317hahg3d8/unsubscribe/aw351axbtv7f6/dj394ykhp392c/3" target="_blank"> click here </a>
    </div>
    
    <img width="1" src="http://nlic.speedomailhub.in/campaigns/dj394ykhp392c/track-opening/aw351axbtv7f6" alt=""/>
  </body>
  
  </html>

How do I show this as an actual html file, just like it shows on run code instead of just plain html text.

Is there any way I can directly convert the base64 to an actual html page. IS it possible with python?

base64 css html python javascript
3 Answers

Use it with iframe. Simply make sure you use the correct data (data:text/html;charset=utf-8;base64) and that you have a valid converted HTML

iframe {
 border:none;
 width:100%;
 height:1000px;
}


body {
 margin:0;
}
<iframe src="data:text/html;charset=utf-8;base64,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"></iframe>

user_86203330

if you want to convert a base64 file try by using a third party web like https://www.base64decode.org/ but what the file is supposed to be for? it seem like it's corrupted.. where do you get it/how do you created it?

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