image to javascript converter

How to convert image source into a JavaScript File object

stackoverflow.com › questions › 62179675 › how-to-convert-image-source-into-a-javascript-file-object

Convert your image src https://cdn.shopify.com/s/files/1/0234/8017/2591/products/young-man-in-bright-fashion_925x_f7029e2b-80f0-4a40-a87b-834b9a283c39.jpg into Base64 ULR format and than convert Base64 URL into javaScript File Object.

***Here is the code for converting "image source" (url) to "Base64".***

let url = 'https://cdn.shopify.com/s/files/1/0234/8017/2591/products/young-man-in-bright-fashion_925x_f7029e2b-80f0-4a40-a87b-834b9a283c39.jpg'
const toDataURL = url => fetch(url)
      .then(response => response.blob())
      .then(blob => new Promise((resolve, reject) => {
      const reader = new FileReader()
      reader.onloadend = () => resolve(reader.result)
      reader.onerror = reject
      reader.readAsDataURL(blob)
     }))


***Here is code for converting "Base64" to javascript "File Object".***

  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});
  }


*** Calling both function ***

  toDataURL(url)
  .then(dataUrl => {
     console.log('Here is Base64 Url', dataUrl)
     var fileData = dataURLtoFile(dataUrl, "imageName.jpg");
     console.log("Here is JavaScript File Object",fileData)
     fileArr.push(fileData)
   })

Answer from Kumar on Stack Overflow

GitHub

github.com › WangYuLue › image-conversion

GitHub - WangYuLue/image-conversion: A simple and easy-to-use JS image convert tools, which can specify size to compress the image. · GitHub

A simple and easy-to-use JS image convert tools, which can specify size to compress the image. - WangYuLue/image-conversion

Starred by 953 users

Forked by 141 users

Languages TypeScript 95.6% | JavaScript 2.9% | HTML 1.5%

DEV Community

dev.to › ninofiliu › lets-write-an-image-converter-in-20-lines-of-htmljs-bng

Let's write an image converter in 20 lines of html+js - DEV Community

June 24, 2022 - One of its powerful features is toDataURL that can export the current canvas image into the format of your choice, like image/jpeg or image/png, and we're gonna use it to write our converter.

Discussions

node.js - How to convert image source into a JavaScript File object - Stack Overflow

contentType should be based on the type of the actual image downloaded. You can read more about several approaches and browser support to convert a Blob to File here: More on stackoverflow.com

stackoverflow.com

Using convert image in JavaScript - Automation - DEVONtechnologies Community

After reading some older posts here on the AppleScript method convert image, I wrote a tiny little thingy in JavaScript: function performsmartrule(records) { var app = Application("DEVONthink 3"); app.includeStandardAdditions = true; records.forEach (r => { if (r.wordCount() === 0) { const ... More on discourse.devontechnologies.com

discourse.devontechnologies.com

November 16, 2021

Convert Images Using Canvas and Javascript

This code could be optimised by using an ImageBitmap. That way you you can directly take the dimensions from there, and then transfer it to the canvas. More on reddit.com

r/webdev

March 14, 2024

html - How to convert from image to text using Javascript - Stack Overflow

I am trying to convert image to text. When anyone upload image then press "Submit" image text should be show into the textarea. My following code is not working, please help! Code: More on stackoverflow.com

stackoverflow.com

Top answer

1 of 5

***Here is the code for converting "image source" (url) to "Base64".***

let url = 'https://cdn.shopify.com/s/files/1/0234/8017/2591/products/young-man-in-bright-fashion_925x_f7029e2b-80f0-4a40-a87b-834b9a283c39.jpg'
const toDataURL = url => fetch(url)
      .then(response => response.blob())
      .then(blob => new Promise((resolve, reject) => {
      const reader = new FileReader()
      reader.onloadend = () => resolve(reader.result)
      reader.onerror = reject
      reader.readAsDataURL(blob)
     }))


***Here is code for converting "Base64" to javascript "File Object".***

  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});
  }


*** Calling both function ***

  toDataURL(url)
  .then(dataUrl => {
     console.log('Here is Base64 Url', dataUrl)
     var fileData = dataURLtoFile(dataUrl, "imageName.jpg");
     console.log("Here is JavaScript File Object",fileData)
     fileArr.push(fileData)
   })

2 of 5

I'm assuming you want to run this in a browser environment. You can use the native fetch() method, read the response as Blob and convert it to a File object.

contentType should be based on the type of the actual image downloaded.

You can read more about several approaches and browser support to convert a Blob to File here:

Convert blob to file

How to convert Blob to File in JavaScript

const url = 'https://cdn.shopify.com/s/files/1/0234/8017/2591/products/young-man-in-bright-fashion_925x_f7029e2b-80f0-4a40-a87b-834b9a283c39.jpg?v=1572867553'
const fileName = 'myFile.jpg'

fetch(url)
  .then(async response => {
    const contentType = response.headers.get('content-type')
    const blob = await response.blob()
    const file = new File([blob], fileName, { contentType })
    // access file here
  })

Espruino

espruino.com › Image+Converter

Converting Bitmaps for Graphics - Espruino

This page helps you to convert an image file into a JS object that can be used with Espruino.

TutorialsPoint

tutorialspoint.com › convert-image-to-data-uri-with-javascript

Convert Image to Data URI with JavaScript

<!DOCTYPE html> <html> <head> <title>Convert Image URL to Data URI</title> </head> <body> <img src="https://via.placeholder.com/150" id="myImg" alt="Sample Image"> <button onclick="convertImage()">Convert to Data URI</button> <div id="output"></div> <script> function toDataURL(src, callback) { var image = new Image(); image.crossOrigin = 'Anonymous'; image.onload = function() { var canvas = document.createElement('canvas'); var context = canvas.getContext('2d'); canvas.height = this.naturalHeight; canvas.width = this.naturalWidth; context.drawImage(this, 0, 0); var dataURL = canvas.toDataURL('

Advanced Themer

advancedthemer.com › features › image-to-code

Convert any Image to HTML/CSS/JavaScript Code - Advanced Themer

May 27, 2025 - This feature is a game-changer: just upload any image or design screenshot, and Structure Generator — powered by AI — will transform it into clean HTML, CSS, and JavaScript code, ready to import into Bricks as native elements.

ToolJet

blog.tooljet.ai › home › quick guide: build image converter using tooljet and javascript

Quick Guide: Build Image Converter Using ToolJet and JavaScript

November 15, 2024 - 2. Use the name in the newFileName (Text Input) component to rename the image. 3. Adjust its quality based on the number we enter in the qualitySetting (Number Input) component. 4. Convert its format based on the choice we make on the selectFormat (Radio Button) component. For more details on base64 and the above JavaScript function, refer to this Base64 Data article.

David Walsh

davidwalsh.name › convert-canvas-image

JavaScript Canvas Image Conversion

February 12, 2014 - I've showed you how you can create ... with JavaScript, but all animation is CSS), an animated Photo Stack, a sweet... ... Some of the finest parts of web apps are hidden in the little things. These "small details" can often add up to big, big gains. One of those small gains can be found in keyboard shortcuts. Awesome web apps like Gmail and GitHub use loads of... ... convertCanvasToImage should have a callback parameter, because the data set as image src takes ...

Toms Editor

tomseditor.com › convert › convert-image-to-JSON

Convert image to JavaScript Object Notation, a lightweight data-interchange format (.JSON) - Tom's Editor

With this tool you can convert almost any image to the JSON format.

Nutrient

nutrient.io › web › conversion › image to text

Convert image to text with JavaScript library | Nutrient SDK

Next, detect the text in the image by running the performOcr operation: ... This feature requires the OCR component to be enabled in your license. Then you can extract the text using the NutrientViewer.Instance#textLinesForPageIndex method: const textLines = await instance.textLineForPageIndex(0); To log all text in the image on the console, you can then run:

npm

npmjs.com › package › image-conversion

image-conversion - npm

March 23, 2020 - Latest version: 2.1.1, last published: 6 years ago. Start using image-conversion in your project by running `npm i image-conversion`. There are 77 other projects in the npm registry using image-conversion.

      » npm install image-conversion

Published Mar 23, 2020

Version 2.1.1

CodeSandbox

codesandbox.io › s › convert-image-to-code-ny55x

convert image to code - CodeSandbox

October 28, 2021 - convert image to code by huy-lv using @emotion/react, @emotion/styled, @mui/material, react, react-dom, react-scripts

Published Oct 28, 2021

Author huy-lv

Repository https://codesandbox.io/s/ny55x

DEVONtechnologies Community

discourse.devontechnologies.com › devonthink › automation

Using convert image in JavaScript - Automation - DEVONtechnologies Community

November 16, 2021 - After reading some older posts here on the AppleScript method convert image, I wrote a tiny little thingy in JavaScript: function performsmartrule(records) { var app = Application("DEVONthink 3"); app.includeStandardAdditions = true; records.forEach (r => { if (r.wordCount() === 0) { const newRecord = app.convertImage (r, {record: r, type: "PDF document", waitingForReply: false}); } }) } which does nothing but produce weird error messages: If I leave out the first par...

reddit.com › r/webdev › convert images using canvas and javascript

r/webdev on Reddit: Convert Images Using Canvas and Javascript

March 14, 2024 -

Yes, what you are reading is correct. You can convert images into different format. But there is a catch. Your browser should support the output format. Read the article to know more.

Top answer

1 of 2

If you attach an event listener to the file input, you can then recognize text once the file has been loaded successfully, like so:

<html>
<body>

<input type="file" id="myFile" name="filename">  
<br><br>

<label><b>Your Converted Text:</b></label><br><br>

<textarea cols="30" name="original" rows="10" style="width: 100%;" id="convertedText">
</textarea>

<script src='https://cdn.rawgit.com/naptha/tesseract.js/1.0.10/dist/tesseract.js'></script>

<script>  

    var myFile = document.getElementById('myFile');
    myFile.addEventListener('change', recognizeText);

    async function recognizeText({ target: { files }  }) {
        Tesseract.recognize(files[0]).then(function(result) {
            console.log("recognizeText: result.text:", result.text);
            document.getElementById("convertedText").value = result.text;
        });
    }

</script>
        
</body>
</html>

2 of 2

Below code will convert any image to text!

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Image to Text Converter</title>
  <script src="https://cdn.jsdelivr.net/npm/tesseract.js/dist/tesseract.min.js"></script>
  <style>
    body {
      font-family: Arial, sans-serif;
      margin: 0;
      padding: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      flex-direction: column;
      min-height: 100vh;
      background-color: #f3f4f6;
    }
    .container {
      max-width: 500px;
      width: 100%;
      padding: 20px;
      background: white;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
      text-align: center;
    }
    .container h1 {
      font-size: 1.5rem;
      margin-bottom: 20px;
    }
    input[type="file"] {
      margin-bottom: 20px;
    }
    #output {
      margin-top: 20px;
      padding: 10px;
      background: #f9fafb;
      border: 1px solid #e5e7eb;
      border-radius: 5px;
      overflow: auto;
      max-height: 200px;
    }
    button {
      padding: 10px 20px;
      background-color: #2563eb;
      color: white;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 1rem;
    }
    button:hover {
      background-color: #1d4ed8;
    }
  </style>
</head>
<body>
  <div class="container">
    <h1>Image to Text Converter</h1>
    <input type="file" id="imageInput" accept="image/*">
    <button id="convertButton">Convert to Text</button>
    <div id="output" hidden>
      <h3>Extracted Text:</h3>
      <p id="text"></p>
    </div>
  </div>

  <script>
    const imageInput = document.getElementById('imageInput');
    const convertButton = document.getElementById('convertButton');
    const outputDiv = document.getElementById('output');
    const textOutput = document.getElementById('text');

    convertButton.addEventListener('click', () => {
      if (imageInput.files.length === 0) {
        alert('Please upload an image.');
        return;
      }

      const imageFile = imageInput.files[0];
      const reader = new FileReader();

      reader.onload = () => {
        Tesseract.recognize(
          reader.result, // Image data
          'eng', // Language
          {
            logger: (info) => console.log(info) // Log progress
          }
        ).then(({ data: { text } }) => {
          textOutput.textContent = text.trim();
          outputDiv.hidden = false;
        }).catch((error) => {
          console.error(error);
          alert('Error processing the image.');
        });
      };

      reader.readAsDataURL(imageFile);
    });
  </script>
</body>
</html>

GitHub

gist.github.com › N1ghting4le › fe802ebe8b55231df965d733027d8e91

JS Image File Format Converter · GitHub

This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters ... A simple image file format converter ing HTML JS.