Convert PNG to WEBP — Free, Private, In Your Browser
If PNG images are making your website slow, this is the fix. WEBP keeps the transparency PNG gives you while cutting the file size roughly in half. Runs entirely in your browser — your image never leaves your device.
- 100% Private
- No Upload
- Free Forever
Drop your PNG here or click to upload
Only PNG files accepted on this page.
Converting to WEBP…
This is happening on your device — no upload.
How it works
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1
Upload your PNG
Drag your file into the box or click to pick. Nothing is sent to a server.
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2
We re-encode it as WEBP
Your browser converts the image using the built-in Canvas API — instant, no library download.
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3
Download instantly
Get your converted WEBP file. Ready to use anywhere.
Why convert PNG to WEBP?
PNG is the format most sites use for logos, icons and any graphic that needs a transparent background — and it is heavy. WEBP was built to solve exactly that: it supports the same full alpha transparency, but typically lands 25–50% smaller on graphics and often far more on complex ones. Because page weight feeds directly into Core Web Vitals, swapping PNG assets for WEBP is one of the least disruptive speed wins available. Every current browser supports it, so for anything that lives on a web page this is nearly always the right move.
When this conversion is the right call
- Logos, icons and UI graphics on a website that need to stay transparent
- Improving Largest Contentful Paint and overall Core Web Vitals scores
- Cutting hosting bandwidth on an image-heavy site
- Speeding up pages for mobile visitors on slower connections
FAQ
Do all browsers support WEBP?
Yes — Chrome, Firefox, Edge, Safari and all current mobile browsers have supported it for years. Only genuinely ancient software is a problem, and that rarely matters for a website.
Is transparency preserved?
Yes. WEBP supports a full alpha channel just like PNG, so transparent and semi-transparent pixels convert faithfully.
Is my image uploaded anywhere?
No. The conversion happens entirely in your browser. Your image never leaves your device.
What is the maximum file size?
There's no hard limit — it depends on your device's memory. Most photos under 50 MB convert in under a second.
Why convert to WEBP?
WEBP is a modern image format developed by Google. It's typically 25-35% smaller than JPG and PNG at the same visual quality, which makes your web pages load faster.
What output quality do you use?
We use a high-quality preset (0.92) that balances visual fidelity and file size. PNG output is always lossless.