PNG → WEBP
Convert PNG to WEBP
Free, instant and 100% private. Your PNG file is converted on your own device and never uploaded anywhere.
Drop your PNG file here
or click to choose — converted to WEBP instantly, on your device
Nothing is uploaded. Your files never leave this browser.
Converting PNG to WEBP is a common task when you need smaller than jpg/png at the same quality. PNG (Portable Network Graphics) is a lossless raster format with a full alpha (transparency) channel. It reproduces sharp edges and text without compression artefacts, making it the default for logos, icons, UI assets and screenshots. WEBP, on the other hand, gives you smaller than jpg/png at the same quality and supports transparency. ZeroUpload performs this conversion entirely inside your browser, so your PNG file is never uploaded to a server.
How to convert PNG to WEBP
- 1
Drop your PNG file into the box (or click to select it).
- 2
ZeroUpload converts it to WEBP instantly, right inside your browser.
- 3
Download your new WEBP file. Nothing was ever uploaded.
When should you convert PNG to WEBP?
You should convert PNG to WEBP when you want speeding up website load times but your source is PNG. Typical situations include logos and brand assets that need a transparent background, screenshots where text must stay crisp, where the destination expects WEBP instead.
PNG vs WEBP
Portable Network Graphics (PNG)
PNG (Portable Network Graphics) is a lossless raster format with a full alpha (transparency) channel. It reproduces sharp edges and text without compression artefacts, making it the default for logos, icons, UI assets and screenshots.
Strengths
- + Lossless quality
- + Transparency (alpha) support
- + Great for sharp edges and text
Trade-offs
- – Larger files than JPG for photos
- – No animation
WebP Image (WEBP)
WebP is a modern Google format with both lossy and lossless modes. At equal quality it is typically 25–35% smaller than JPG or PNG, supports transparency, and is now backed by every major browser.
Strengths
- + Smaller than JPG/PNG at the same quality
- + Supports transparency
- + Modern browser support
Trade-offs
- – Less universal in old desktop apps
- – Occasionally rejected by legacy tools
Frequently asked questions
How do I convert PNG to WEBP? +
Drop your PNG file into the box above (or click to choose it), and ZeroUpload converts it to WEBP right inside your browser. Then download the result. No account, no waiting.
Is it safe to convert PNG files here? +
Completely. ZeroUpload does the entire conversion on your own device. Your PNG file is never uploaded to any server, so your data stays 100% private.
Does converting PNG to WEBP cost anything? +
No. It is free with no limits and no signup. Because the conversion runs on your device, there are no server costs and therefore no paywalls.
What is the difference between PNG and WEBP? +
PNG is a lossless image format with transparency support, ideal for graphics, logos and screenshots. WEBP is a modern Google format offering superior compression and smaller file sizes for the web. Converting from PNG to WEBP trades lossless quality for smaller than jpg/png at the same quality.
Will it work offline? +
Yes. Once the page (and engine) has loaded, the PNG to WEBP conversion works even with your internet disconnected, because everything happens locally.