PNG to WebP
Convert PNG to modern WebP retaining alpha transparency.
Drag & Drop Your Images Here
Supports .png files up to 50MB
Browse From DeviceFiles never leave your device. All processing happens locally in your browser.
Supported Formats: All common image formatsMaximum File Size: 50 MB
Savings vary by image and quality setting — lossy compression and modern formats like WebP shrink photos dramatically.
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Why Convert PNG to WebP?
PNG's lossless DEFLATE compression is reliable but dated — bulky screenshots and graphics waste bandwidth. WebP's lossless mode uses more advanced entropy coding to shrink the same pixels significantly, and crucially, it preserves the full 8-bit alpha channel. You keep perfect transparency at a fraction of the file weight.
- ✓Keeps full transparency: 8-bit alpha channel preserved — logos and overlays stay perfect
- ✓Much smaller files: lossless WebP is typically ~26% smaller than equivalent PNG
- ✓Lossy option available: quality slider trades imperceptible detail for even tinier files
- ✓Web-optimized: ideal for logos, UI graphics, and illustrations served online
PNG vs WebP: Key Differences
Both support lossless storage and transparency — WebP just does it with a modern codec.
How to Convert PNG to WebP in 3 Steps
Add Your PNG Files
Drag and drop one or more .png images — transparency included — into the upload zone, or click to browse. Files up to 50MB each.
Choose Lossless or Lossy
Keep the default for pixel-perfect lossless output, or lower the quality slider for dramatically smaller lossy files.
Download WebP Files
Download individually or as a ZIP archive. Transparency is preserved in every output.
When Should You Convert PNG to WebP?
Convert PNGs destined for the web: site logos, icons, UI screenshots, illustrations. A PNG hero image that weighs 800KB often becomes a 500KB lossless WebP — or 150KB lossy — with no visible change. Keep original PNGs for editing and archival (every editor opens PNG; fewer handle WebP), and serve WebP to visitors.
Key insight: PNG's DEFLATE is a general-purpose compressor from the 1990s. WebP lossless instead uses a dedicated image pipeline — spatial prediction plus custom entropy coding tuned for pixels. That specialization is why the same transparent logo compresses ~26% smaller without losing a single bit.
Any Reason to Keep PNG?
Yes — compatibility. PNG opens in every image editor, email client, and operating system ever made; WebP still trips up older design tools and some upload forms. For master files you'll edit repeatedly, PNG remains the safer archive. Convert copies for web delivery, keep PNG originals.
Related: Starting from JPGs? Use our JPG to WebP converter.
Need to go back? Try WebP to PNG. To shrink PNGs without converting, the image compressor helps.
Frequently Asked Questions
Yes — fully. WebP's lossless mode preserves the complete 8-bit alpha channel, so semi-transparent shadows, anti-aliased edges, and overlays look exactly as they did in the PNG.
In lossless mode, typically around 26% smaller than PNG. Switch to lossy at 85% quality and photographic PNGs can shrink 60–80% with no visible difference. Simple flat-color graphics save the most.
Yes. Smaller images load faster, improving page speed and Core Web Vitals — both ranking signals. Google explicitly recommends modern formats like WebP in its PageSpeed guidance.
All modern browsers render WebP, including Safari 14+. For the rare legacy visitor, the <picture> element lets you serve WebP with a PNG fallback.
No. Everything runs in your browser via the native WebP encoder — files never leave your device.
Yes — drop in a whole folder of assets, convert once, and download a single ZIP. Ideal for migrating a site's graphics to WebP.