Finally a truly free unlimited converter! Convert unlimited images online – 100% free, no sign-up required

Convert PNG to WebP Online – Free, Fast & Unlimited

Use our free online converter to quickly turn PNG images into WebP format without losing quality. No limits – just upload, convert, and download instantly.

PixConverter.io – Universal Image Converter

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Use our free PNG to WebP converter

Reduce image file size without losing visual quality. Fully browser-based, lightning-fast, and completely free — no downloads, no sign-up, no file limits. Just upload your PNG files, convert to WebP, and download in seconds.

Why Convert PNG to WebP?

WebP is a next-generation image format developed by Google, designed to provide superior compression and quality compared to traditional formats like PNG. By converting your PNGs to WebP, you get faster loading times, reduced bandwidth usage, and better performance across your website or app. Learn why Google loves WebP.

  • Smaller file sizes: WebP images are typically 25–35% smaller than PNGs of the same quality.

  • Faster websites: Reduced image size means shorter loading times, better SEO, and improved Core Web Vitals.

  • Modern format: Supported by all major browsers including Chrome, Firefox, Safari, and Edge.

  • Same visual quality: WebP maintains sharpness, color depth, and clarity even at smaller sizes.

  • Better compression: Supports both lossy and lossless compression for various use cases.

How to Convert PNG to WebP Online

PixConvert.io makes it easy to transform your PNG files into fast, lightweight WebP images — instantly, right in your browser:

  1. Upload your PNG images: Drag & drop them into the converter or select from your device.

  2. Choose WebP as output: The converter automatically sets WebP as the target format.

  3. Click “Convert”: The conversion takes place in your browser — no data leaves your device.

  4. Download your new WebP images: Save optimized versions to your computer or phone instantly.

That’s all. No login, no watermarks, no limits — just fast, secure image conversion.

PNG vs WebP: What’s the Difference?

Feature PNG WebP
File Size Larger Smaller
Compression Lossless only Lossy & Lossless
Browser Support Universal Modern browsers
Transparency Support Yes Yes
Best For Graphics, icons Web-optimized images

👉 In short: WebP is the modern alternative to PNG — smaller, smarter, and designed for the web.

You can find out more details about WebP and PNG in our special article here.

Why Choose PixConvert?

  • Browser-based & Private: No files are uploaded to servers — conversion happens locally.

  • Unlimited Conversions: No limits on the number or size of files you convert.

  • Free Forever: No payment, no subscription, no trial period.

  • High Speed: Instantly convert even large batches of PNG files without waiting.

  • Mobile-Friendly: Works on any device — phone, tablet, laptop — without app installation.

Frequently Asked Questions (FAQ)

PNG is a lossless format great for graphics and UI with transparency. WebP supports both lossless and lossy compression (plus alpha), so you can get much smaller files at similar visual quality.

You’ll usually get significantly smaller file sizes (especially with lossy WebP), which means faster page loads, better Core Web Vitals, and improved SEO.

Yes. WebP supports full alpha transparency in both lossless and lossy modes.

Lossless WebP is commonly ~20–25% smaller than PNG. With lossy WebP, reductions of 60–80% are achievable with minimal visible change.

Lossless WebP preserves pixel-perfect quality. Lossy WebP trades a bit of detail for much smaller files; quality is adjustable to your needs.

Absolutely. Choose lossless (or lossy with alpha) and your transparency is preserved.

Yes—current versions of Chrome, Firefox, Safari, and Edge support WebP. For legacy browsers, use a fallback (e.g., serve PNG if WebP isn’t supported).

Typically yes. Smaller images improve LCP/CLS metrics and overall UX, which helps SEO.

Yes. Simply drag & drop multiple PNG files and convert them all at once.

Yes. It’s completely free, with no sign-up and no file count limits.

Yes. Conversion runs in your browser; images aren’t uploaded to a server.

Lossless keeps identical pixels (smaller than PNG). Lossy applies perceptual compression for much smaller files at adjustable quality.

WebP can store metadata, but many online converters strip it to reduce size. You can choose whether to retain it if the option is available.

Yes. Modern WordPress and Shopify themes/plugins support WebP. You can also use picture/srcset for fallbacks.

For photos/complex graphics: lossy WebP with quality ~70–85. For UI/icons/flat shapes: lossless WebP (or carefully tuned lossy with alpha).

How We’re Different from Other Free Converters

🚫 Most “free” online image converters come with hidden restrictions:

❌ Convert only 10 files per day
❌ File size limit (25 MB or less)
❌ Forced registration
❌ Watermarks on output files

💥 With PixConverter.io:

✅ No file count limit
✅ No sign-up required
✅ No watermarks
✅ Always free