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@anandchakru
Created August 22, 2023 19:23
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webp to png bulk upload/download
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>Bulk convert WebP to png created by anandchakru</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style>
body {
font-family: Arial, sans-serif;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
}
.container {
text-align: center;
}
h1 {
margin-bottom: 10px;
}
h3 {
color: #777;
}
input[type='file'] {
margin-bottom: 10px;
}
button {
padding: 8px 16px;
background-color: #007bff;
color: white;
border: none;
cursor: pointer;
border-radius: 4px;
}
button#cleanupButton {
display: none;
text-align: center;
}
#output {
margin-top: 20px;
}
div.desc {
margin-bottom: 25px;
}
</style>
</head>
<body>
<div class="container">
<h1>WebP to PNG Converter</h1>
<h3>
By <a href="https://rathnas.com">anandchakru</a> Hosted
<a href="https://free-online-webp-to-png.stackblitz.io/">here</a>
</h3>
<div class="desc">Free online tool to convert webp to png</div>
<input type="file" id="fileInput" accept=".webp" multiple />
<button id="convertButton">Convert to PNG</button>
<div id="output"></div>
<button id="cleanupButton">Cleanup</button>
</div>
<script>
document.addEventListener('DOMContentLoaded', function () {
const fileInput = document.getElementById('fileInput');
const convertButton = document.getElementById('convertButton');
const cleanupButton = document.getElementById('cleanupButton');
const outputDiv = document.getElementById('output');
cleanupButton.addEventListener('click', function () {
outputDiv.innerHTML = ''; // Clear previous output
cleanupButton.style.display = 'none';
});
convertButton.addEventListener('click', function () {
const files = fileInput.files;
outputDiv.innerHTML = ''; // Clear previous output
if (files.length > 0) cleanupButton.style.display = 'unset';
for (let i = 0; i < files.length; i++) {
const file = files[i];
const reader = new FileReader();
reader.onload = function (event) {
const img = new Image();
img.src = event.target.result;
img.onload = function () {
const canvas = document.createElement('canvas');
canvas.width = img.width;
canvas.height = img.height;
const ctx = canvas.getContext('2d');
ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
const outputImg = new Image();
outputImg.src = canvas.toDataURL('image/png');
// Create a download link for the converted PNG
const link = document.createElement('a');
link.href = outputImg.src;
link.download = file.name.replace('.webp', '.png'); // Use the same name, replace extension
link.textContent = link.download;
outputDiv.appendChild(link);
outputDiv.appendChild(document.createElement('br'));
outputDiv.appendChild(document.createElement('br'));
};
};
reader.readAsDataURL(file);
}
});
});
</script>
</body>
</html>
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