Pixel Melt: Free Batch Image to WebP Converter Online — Convert PNG, JPG, GIF to WebP, No Upload

100% Browser-Based · Zero Upload

Drop any image. Get a smaller WebP.
Faster pages. Lower bandwidth. Better SEO. Free forever.

PNG JPG GIF BMP TIFF AVIF → WEBP

25–35% Smaller Files

WebP compresses better than PNG and JPEG at the same visual quality. Less bytes, same pixels.

Instant Conversion

No upload queue. No waiting. Your browser does all the work. Hundreds of images in seconds.

Totally Private

Images never leave your device. No server, no account, no tracking, no data collection. Ever.

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Converted
0 KB
Saved
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Avg. Reduction
82
Drop images here or click to browse
PNG · JPG · GIF · BMP · TIFF · AVIF · unlimited batch · never leaves your device
0 files 0 KB saved

Frequently Asked Questions

What is Pixel Melt?
Pixel Melt is a free browser-based tool that batch converts images to WebP format. It accepts PNG, JPG, GIF, BMP, TIFF, and AVIF. Everything runs locally in your browser — your images are never uploaded to any server.
Is it free?
Yes, completely free. No account, no watermarks, no feature gates, no ads. Convert as many images as you want, as often as you want.
Does it upload my images?
No. Everything runs locally using the Canvas API and JavaScript. Your images never leave your device. There is no server involved at all.
What image formats are accepted?
PNG, JPG/JPEG, GIF, BMP, TIFF, AVIF, and even existing WebP files. If your browser can display it, Pixel Melt can convert it.
How does this compare to CloudConvert or FreeConvert?
Unlike CloudConvert and FreeConvert, which upload your files to their servers, Pixel Melt processes everything in your browser. Faster conversions, total privacy, no file size limits, no account needed. Also completely free with no ads.
What quality setting should I use?
For most web images, 80–85 gives excellent results with major savings. Use 90–100 for photography or portfolio images. Use 60–75 for thumbnails where smaller file size matters most.
Why convert to WebP?
WebP images are typically 25–35% smaller than PNGs and 25–34% smaller than JPEGs at equivalent quality. Smaller images mean faster page loads, better Core Web Vitals, improved SEO scores, and lower hosting costs. Every major browser supports WebP.
Can I download all files at once?
Yes. Click Download All to get a single ZIP file with every converted WebP image. You can also save files individually. For other media tasks, check out Video Shrinker for compressing video or Picturino for full image editing.