Convert image URI into javascript file object

Question

So I have this webcam feature that returns base64 URI to me and I can't save it to AWS since it needs an image object. Is there any way to convert URI into javascript object?(file object the same as returned by file browser input tag to be exact)

I want to convert this

data:image/jpeg;base64,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

into this

File {
   lastModified : 1481782908707
   lastModifiedDate : Thu Dec 15 2016 14:21:48 GMT+0800 (Malay Peninsula Standard Time)
   name : "sampleicon2.jpg"
   size :64847
   type : "image/jpeg"
   webkitRelativePath : ""
   __proto__ : File
}

Is it possible? How? Thanks in advance..

Harel Levy · Accepted Answer · 2017-04-12 01:04:36Z

50

fastest way

function dataURLtoFile(dataurl, filename) {
var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
    bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
    while(n--){
        u8arr[n] = bstr.charCodeAt(n);
    }
    return new File([u8arr], filename, {type:mime});
}

Usage example:

var file = dataURLtoFile('data:image/png;base64,....', 'filename.png');
console.log(file);

edited Apr 12, 2017 at 1:04

answered Apr 12, 2017 at 0:58

Harel Levy

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4 Comments

JkAlombro Over a year ago

Wow, you just saved me from lots of trouble. It works perfectly thanks a lot :)

Dhara Vaghasiya Over a year ago

Thanx alot, your answer is saviour for me. @HarelLevy

samli prajapati Over a year ago

I am using this code for converting image file but i have got error "cannot read property 1 of null"

samli prajapati Over a year ago

mime = arr[0].match(/:(.*?);/)[1], bstr = atob(arr[1]),

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