Image Base64 Embed Code Generator Upload Image
Uploading files using Base64 encoding is a common practice. In this guide, I'm going to show yous how to upload files using base64 encoding
What is Base64 encoding?
Base64 Encoding is the well-nigh widely used technique for storing or transmitting binary information by converting it to text. With this technique, binary data, which basically consists of 8-chip bytes, is divided into 6-chip (two^6 = 64) parts. 64 different numbers expressed in 6 bits are matched with 64 different characters expressed as Printable Characters in the ASCII character set.
Base64 encoding is most usually used to adhere binary files to e-mail in applications of the MIME (Multipurpose Internet Mail Extensions) standard.
Another usage surface area of Base64 Encoding is adding images and other files to HTML and CSS documents past encoding with Base64 using Data URLs format in modern browsers.
Example
In our example, we will upload the paradigm file by encoding the image as Base64. First, let's write elementary HTML and prepare the Bootstrap CSS link.
<! DOCTYPE html >
< html lang = " en " >
< head >
< meta charset = " utf-eight " />
< meta name = " viewport " content = " width=device-width, initial-scale=1 " />
< link rel = " stylesheet " href = " ./alphabetize.css " />
< link
href = " https://cdn.jsdelivr.internet/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css "
rel = " stylesheet "
integrity = " sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC "
crossorigin = " anonymous "
/>
< championship > Base64 File Upload </ title >
</ head >
< body >
< div style = " margin : 24 px " >
< h2 > Upload Image </ h2 >
</ div >
< script src = " ./alphabetize.js " > </ script >
</ trunk >
</ html >
Then nosotros demand to apply the HTML input tag to receive an image file from the user.
We will utilise file input because it must be the input type file we want to receive.
<! DOCTYPE html >
< html lang = " en " >
< head >
< meta charset = " utf-8 " />
< meta name = " viewport " content = " width=device-width, initial-scale=1 " />
< link rel = " stylesheet " href = " ./alphabetize.css " />
< link href = " avails/css/bootstrap-responsive.css " rel = " stylesheet " />
< link
href = " https://cdn.jsdelivr.net/npm/bootstrap@5.0.two/dist/css/bootstrap.min.css "
rel = " stylesheet "
integrity = " sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC "
crossorigin = " anonymous "
/>
< title > Base64 File Upload </ championship >
</ head >
< trunk >
< div style = " margin : 24 px " >
< h2 > Upload Image </ h2 >
</ div >
< div style = " margin : 16 px ; padding : 16 px " >
< input
class = " form-control form-control-lg "
id = " selectAvatar "
type = " file "
/>
</ div >
</ html >
Now we have an input to interact with the user and select a file. Let's add the HTML elements that volition testify the prototype file and Base64 lawmaking nosotros received from the user.
<! DOCTYPE html >
< html lang = " en " >
< head >
< meta charset = " utf-viii " />
< meta name = " viewport " content = " width=device-width, initial-calibration=i " />
< link rel = " stylesheet " href = " ./index.css " />
< link href = " avails/css/bootstrap-responsive.css " rel = " stylesheet " />
< link
href = " https://cdn.jsdelivr.internet/npm/bootstrap@five.0.2/dist/css/bootstrap.min.css "
rel = " stylesheet "
integrity = " sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC "
crossorigin = " bearding "
/>
< title > Base64 File Upload </ title >
</ head >
< body >
< div style = " margin : 24 px " >
< h2 > Upload Image </ h2 >
</ div >
< div style = " margin : 16 px ; padding : 16 px " >
< input
class = " form-control form-control-lg "
id = " selectAvatar "
type = " file "
/>
</ div >
< div class = " container " >
< div class = " row " >
< div grade = " col " >
< h6 > Image Preview: </ h6 >
< img class = " img " id = " avatar " />
</ div >
< div class = " col " >
< h6 > Base64 Output </ h6 >
< textarea id = " textArea " rows = " 30 " cols = " 50 " > </ textarea >
</ div >
</ div >
</ div >
< script src = " ./alphabetize.js " > </ script >
</ body >
</ html >
Our fields are ready to display the image file and Base64 code. At present allow's do our operations on the JavaScript side.
const input = document . getElementById ( "selectAvatar" ) ;
const avatar = document . getElementById ( "avatar" ) ;
const textArea = document . getElementById ( "textAreaExample" ) ;
const convertBase64 = ( file ) => {
return new Promise ( ( resolve , refuse ) => {
const fileReader = new FileReader ( ) ;
fileReader . readAsDataURL ( file ) ;
fileReader . onload = ( ) => {
resolve ( fileReader . result ) ;
} ;
fileReader . onerror = ( error ) => {
reject ( error ) ;
} ;
} ) ;
} ;
const uploadImage = async ( event ) => {
const file = event . target . files [ 0 ] ;
const base64 = look convertBase64 ( file ) ;
avatar . src = base64 ;
textArea . innerText = base64 ;
} ;
input . addEventListener ( "change" , ( east ) => {
uploadImage ( due east ) ;
} ) ;
Here we accept data in file format and encode it every bit Base64. Then nosotros show this encoded paradigm and Base64 encoding output.
Live Codesandbox Instance
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How to Base64 Upload with Refine?
The Base64 file upload procedure with refine is very simple. How to use it is explained step by step in the guide and instance.
Refer to the refine Base64 Upload guide for more data. →
View Source
Refine Base64 Upload Live Codesandbox Example
Source: https://refine.dev/blog/how-to-base64-upload/
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