PNG to WebP
Convert a PNG image to the smaller WebP format.
PNG to WebP converts a PNG image to WebP, a modern format that's usually smaller at similar quality, while keeping transparency — with a quality slider to control the tradeoff.
Click to choose an image, or drag one in here
One image at a time
How to use
- Upload a PNG image.
- Adjust the WebP quality if you like.
- Click "Convert to WebP & download".
Common use scenarios
- Shrinking website images to WebP for faster page load times.
- Reducing storage space used by a collection of PNG images.
- Preparing transparent images for a platform or app with strong WebP support.
- Converting PNG graphics to a more space-efficient format for a specific use case.
✓Content & verification reviewed: 2026-09-14
How we verify PNG to WebP
How to confirm the conversion preserved transparency and gave a size benefit.
Transparency is preserved
Unlike converting to JPG, WebP supports transparency, so any transparent areas in the source PNG remain transparent in the output.
WebP is usually, but not always, smaller
At similar visual quality, WebP is typically smaller than PNG for photographic content — for very simple graphics, compare the actual file sizes since the difference can vary.
Compatibility is generally strong but not universal
Modern browsers and platforms support WebP well, but some older or specialized software may not — check compatibility for your specific use case.
Before you rely on the result
- The uploaded file is genuinely a PNG (the tool rejects other formats).
- You've adjusted the quality slider and compared the resulting file size.
- You've confirmed transparency (if present) survived the conversion.
Who this is for
- Web developers converting PNG assets to WebP for faster page loads.
- Anyone shrinking a collection of transparent PNGs into a smaller format.
- People preparing images for platforms with strong WebP support.
Real-world examples
Shrinking website graphics
A developer converts a set of transparent PNG icons to WebP, keeping the transparency while noticeably reducing total page weight.
Saving storage on a large image library
Someone with many PNG screenshots converts them to WebP to free up meaningful storage space without losing transparency where it matters.
Limitations
- Very old browsers/apps may not support opening WebP files.
Frequently asked questions
Will transparent areas stay transparent?
Yes — WebP supports transparency, so it's preserved from the source PNG.
Is WebP always smaller than PNG?
Usually, but not guaranteed for every image — compare the before/after sizes if the difference matters for your use case.
What if I upload a JPG or other format by mistake?
The tool checks that the uploaded file is genuinely a PNG and shows an error instead of silently converting the wrong format.
🔒 Runs in your browser — nothing is uploaded. Results are for reference only; see the disclaimer. Last updated: 2026-09-14
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