# WebP to PNG Converter — Free, Instant, No Upload | TechnoSports

URL: https://technosports.co.in/webp-to-png-converter-free/  
Published: 2026-06-06  
Updated: 2026-06-06  
Author: Raunak Saha

*WebP to PNG Converter:*Need a [WebP](https://en.wikipedia.org/wiki/WebP) image as a standard PNG? Convert it instantly, with no upload. WebP is great for the web but isn’t accepted everywhere — this tool turns WebP files into universally supported PNGs right in your browser, keeping full quality and transparency intact.

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.ts-tool-wrapper {
    background: #0d0e12;
    border: 1px solid #1f222e;
    padding: 30px;
    border-radius: 16px;
    color: #f1f2f6;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", sans-serif;
    max-width: 650px;
    margin: 30px auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.6), 0 0 100px rgba(0, 86, 255, 0.05);
    transition: all 0.3s ease;
    box-sizing: border-box;
}
@media (max-width: 768px) {
    .ts-tool-wrapper {
        margin: 15px 10px;
        padding: 20px 15px;
        border-radius: 12px;
    }
}
.ts-tool-title {
    font-size: 2rem;
    font-weight: 800;
    margin-top: 0;
    margin-bottom: 12px;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-left: 5px solid #0056ff;
    padding-left: 15px;
    letter-spacing: -0.5px;
}
@media (max-width: 480px) {
    .ts-tool-title {
        font-size: 1.5rem;
        padding-left: 10px;
    }
}
.ts-tool-subtitle {
    font-size: 0.95rem;
    color: #94a3b8;
    margin-bottom: 30px;
    line-height: 1.6;
}
.ts-form-group {
    margin-bottom: 22px;
    box-sizing: border-box;
}
.ts-form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: #cbd5e1;
    font-size: 0.9rem;
    letter-spacing: 0.2px;
}
.ts-form-input {
    width: 100%;
    padding: 14px 16px;
    background: #151821;
    border: 1px solid #2a2f3f;
    border-radius: 8px;
    color: #ffffff;
    font-size: 1rem;
    box-sizing: border-box;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.ts-form-input:focus {
    border-color: #3b82f6;
    background: #1a1e2a;
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.ts-form-select {
    width: 100%;
    padding: 14px 16px;
    background: #151821;
    border: 1px solid #2a2f3f;
    border-radius: 8px;
    color: #ffffff;
    font-size: 1rem;
    box-sizing: border-box;
    cursor: pointer;
    transition: all 0.25s ease;
}
.ts-form-select:focus {
    border-color: #3b82f6;
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.ts-btn-submit {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    border: none;
    padding: 16px;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}
.ts-btn-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}
.ts-btn-submit:active:not(:disabled) {
    transform: translateY(0);
}
.ts-btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #1e293b;
    box-shadow: none;
    color: #64748b;
}
.ts-result-box {
    margin-top: 35px;
    background: #151821;
    border: 1px solid #222736;
    padding: 24px;
    border-radius: 12px;
    display: none;
    animation: tsFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
@keyframes tsFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.ts-result-box.visible {
    display: block;
}
.ts-result-title {
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.9rem;
    color: #3b82f6;
    margin-bottom: 20px;
    border-bottom: 1px solid #222736;
    padding-bottom: 12px;
    letter-spacing: 0.5px;
}
.ts-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    font-size: 1.05rem;
    border-bottom: 1px dashed #222736;
}
.ts-result-row:last-child {
    border-bottom: none;
}
.ts-result-val {
    font-weight: 700;
    color: #ffffff;
}
.ts-badge {
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    display: inline-block;
}
.ts-badge-success { background: rgba(34, 169, 0, 0.15); color: #4ade80; }
.ts-badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.ts-badge-danger { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.ts-back-link {
    display: inline-flex;
    align-items: center;
    margin-top: 25px;
    color: #94a3b8;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
}
.ts-back-link:hover {
    color: #3b82f6;
    transform: translateX(-3px);
}
/* Premium range input overrides */
input[type="range"] {
    -webkit-appearance: none;
    height: 6px;
    background: #2a2f3f;
    border-radius: 5px;
    outline: none;
    margin: 15px 0;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #3b82f6;
    cursor: pointer;
    transition: transform 0.1s;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
}
input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}
/* Drag & Drop Area Styles */
.ts-dropzone {
    border: 2px dashed #2a2f3f;
    background: #11141e;
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    margin-bottom: 20px;
    box-sizing: border-box;
}
.ts-dropzone:hover, .ts-dropzone.dragover {
    border-color: #3b82f6;
    background: #151926;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.05);
}
.ts-dropzone-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
}
.ts-dropzone-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: #f1f2f6;
    margin: 0 0 6px 0;
}
.ts-dropzone-text span {
    color: #3b82f6;
    text-decoration: underline;
}
.ts-dropzone-info {
    font-size: 0.8rem;
    color: #64748b;
    margin: 0;
}

function encodeImageWithCompression(canvas, targetMime, userQuality, originalSize) {
    var defaultQuality = userQuality ? (userQuality > 1 ? userQuality / 100 : userQuality) : 0.55;

    if (targetMime === "image/avif") {
        // Optimal quality for AVIF is 0.45 - 0.60
        var avifQuality = (defaultQuality > 0.70) ? 0.55 : defaultQuality;
        var dataUrl = canvas.toDataURL("image/avif", avifQuality);

        // Check if browser actually encoded AVIF (if unsupported, browser returns data:image/png)
        var isRealAvif = (dataUrl && dataUrl.indexOf("data:image/avif") === 0);

        if (isRealAvif) {
            var head = "data:image/avif;base64,";
            var size = Math.round((dataUrl.length - head.length) * 3 / 4);

            if (originalSize && size >= originalSize) {
                var compUrl = canvas.toDataURL("image/avif", 0.45);
                var compHead = "data:image/avif;base64,";
                var compSize = Math.round((compUrl.length - compHead.length) * 3 / 4);
                if (compSize < size) {
                    dataUrl = compUrl;
                    size = compSize;
                }
            }
            return { dataUrl: dataUrl, ext: "avif", mime: "image/avif", size: size, fallback: false };
        }

        // Fallback: WebP output encoded with .avif extension if browser canvas AVIF encoding is unsupported
        var webpUrl = canvas.toDataURL("image/webp", 0.70);
        var webpHead = "data:image/webp;base64,";
        var webpSize = Math.round((webpUrl.length - webpHead.length) * 3 / 4);
        return { dataUrl: webpUrl, ext: "avif", mime: "image/avif", size: webpSize, fallback: true };
    }

    var mime = targetMime;
    var ext = "jpg";
    if (mime === "image/png") ext = "png";
    if (mime === "image/webp") ext = "webp";
    if (mime === "image/gif") ext = "gif";

    var q = defaultQuality;
    if (mime === "image/webp" && q > 0.80) q = 0.70;
    if (mime === "image/jpeg" && q > 0.85) q = 0.75;

    var dataUrl = (mime === "image/png" || mime === "image/gif") ? canvas.toDataURL(mime) : canvas.toDataURL(mime, q);
    var head = "data:" + mime + ";base64,";
    var size = Math.round((dataUrl.length - head.length) * 3 / 4);

    if (originalSize && size >= originalSize && (mime === "image/webp" || mime === "image/jpeg")) {
        var tighterUrl = canvas.toDataURL(mime, 0.55);
        var tighterHead = "data:" + mime + ";base64,";
        var tighterSize = Math.round((tighterUrl.length - tighterHead.length) * 3 / 4);
        if (tighterSize < size) {
            dataUrl = tighterUrl;
            size = tighterSize;
        }
    }

    return { dataUrl: dataUrl, ext: ext, mime: mime, size: size, fallback: false };
}

function copyImageToolResultToClipboard(targetId, btn) {
    var element = document.getElementById(targetId);
    if (!element) {
        btn.textContent = "Error";
        setTimeout(function() { btn.textContent = "Copy Image"; }, 2000);
        return;
    }

    var originalText = btn.textContent;
    btn.disabled = true;
    btn.textContent = "Copying...";

    var dataUrl = "";
    if (element.tagName.toLowerCase() === "canvas") {
        dataUrl = element.toDataURL("image/png");
    } else if (element.tagName.toLowerCase() === "a") {
        dataUrl = element.href;
    } else if (element.tagName.toLowerCase() === "img") {
        dataUrl = element.src;
    }

    if (!dataUrl || dataUrl === "#" || dataUrl === "") {
        btn.textContent = "No image found";
        btn.disabled = false;
        setTimeout(function() { btn.textContent = originalText; }, 2000);
        return;
    }

    if (typeof ClipboardItem === "undefined") {
        btn.textContent = "Browser Blocked";
        btn.disabled = false;
        setTimeout(function() { btn.textContent = originalText; }, 2000);
        return;
    }

    fetch(dataUrl)
        .then(function(res) { return res.blob(); })
        .then(function(blob) {
            if (blob.type === "image/png") {
                var item = new ClipboardItem({ "image/png": blob });
                navigator.clipboard.write([item]).then(function() {
                    btn.textContent = "Copied!";
                    btn.disabled = false;
                    setTimeout(function() { btn.textContent = originalText; }, 2000);
                }).catch(function(err) {
                    btn.textContent = "Blocked";
                    btn.disabled = false;
                    setTimeout(function() { btn.textContent = originalText; }, 2000);
                });
            } else {
                var img = new Image();
                img.onload = function() {
                    var canvas = document.createElement("canvas");
                    canvas.width = img.width;
                    canvas.height = img.height;
                    var ctx = canvas.getContext("2d");
                    ctx.drawImage(img, 0, 0);
                    canvas.toBlob(function(pngBlob) {
                        var item = new ClipboardItem({ "image/png": pngBlob });
                        navigator.clipboard.write([item]).then(function() {
                            btn.textContent = "Copied!";
                            btn.disabled = false;
                            setTimeout(function() { btn.textContent = originalText; }, 2000);
                        }).catch(function(err) {
                            btn.textContent = "Blocked";
                            btn.disabled = false;
                            setTimeout(function() { btn.textContent = originalText; }, 2000);
                        });
                    }, "image/png");
                };
                img.src = dataUrl;
            }
        });
}

function showDropzoneUploadFeedback(toolPrefix, file) {
    var dropzone = document.getElementById(toolPrefix + "-dropzone");
    if (!dropzone) return;

    // Preserve the file input element so it is not destroyed when innerHTML is updated
    var inputEl = dropzone.querySelector('input[type="file"]');

    if (!dropzone.getAttribute("data-original-html")) {
        dropzone.setAttribute("data-original-html", dropzone.innerHTML);
    }

    var sizeStr = (file.size / 1024).toFixed(1) + " KB";
    var isImage = (file.type && file.type.startsWith("image/")) || /\.(jpg|jpeg|png|webp|gif|svg)$/i.test(file.name);
    var previewHtml = "";

    if (isImage) {
        var objectUrl = URL.createObjectURL(file);
        // Do NOT use onload URL revocation here to avoid Safari/Chrome repaint glitching
        previewHtml = <img decoding="async" src="${objectUrl}" style="max-height: 80px; max-width: 120px; object-fit: contain; border-radius: 6px; margin-bottom: 8px; border: 1px solid rgba(255,255,255,0.15); box-shadow: 0 4px 12px rgba(0,0,0,0.5);">;
    } else {
        previewHtml = <div style="font-size:2.5rem; filter: drop-shadow(0 0 10px rgba(34, 197, 94, 0.4));">📄`