Big Savings on PNG File Size
PNG screenshots and graphics can be large. WebP often makes them far smaller while keeping transparency.
Keeps TransparencyPNG to WebP Converter
Convert PNG images to WebP to cut file size and keep transparency. Free, private and processed entirely in your browser. Nothing is uploaded.
No sign-up required Transparency kept Files never uploaded
Drag & drop your PNG images here
or click to browse files
PNG→WebP
Up to 20 images at once
0 images selected
Recommended: 80-85% for most photos
Upload an image to begin
—Saved
—Before
→—After
Choose Your Quality
Lower the quality for the smallest file, or raise it to keep text and edges crisp. 85-90% suits most images.
Adjustable QualityYour Images Are Never Uploaded
The conversion runs entirely in your browser. Your PNG files stay on your device and are never stored, shared or sent to any server.
100% PrivateFree PNG to WebP Converter
Works on Windows, Mac, iPhone and Android, right in your browser. No account, no watermark and no limits, forever free.
Always FreeHow to Convert PNG to WebP Online in 4 Steps
Converting PNG to WebP with FreeConverto takes under 30 seconds. Everything runs in your browser, so there is nothing to install, no account to create and your files never leave your device.
01
Upload Your PNG Files
Drag and drop up to 20 PNG images, or click to browse. You can add more files at any time.
02
Set the Quality
Choose the WebP quality with the slider. 80-85% suits most photos.
03
Convert to WebP
Click Convert to WebP. Everything happens in your browser, usually in a second or two per image.
04
Download
Download images one by one or all at once as a ZIP. No watermark and no sign-up.
Why Convert PNG to WebP?
PNG files can be heavy. Converting to WebP is a popular way to shrink them without losing transparency. Here is when it helps.
✓
Faster websites
Smaller images load faster, which is great for logos, banners and screenshots on web pages.
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Transparent images, smaller
Unlike JPG, WebP supports transparency, so you keep see-through backgrounds and still save space.
✓
Screenshots and graphics
Screenshots and illustrations saved as PNG are often large. WebP can shrink them considerably.
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Save storage and bandwidth
Lighter files use less hosting space and bandwidth for every visitor.
Best WebP Quality for Each Type of PNG
PNG files are used for very different things. Here is a good starting point for the quality slider, depending on what your image is.
🖥️
Screenshots
Use 85-90%. Text stays readable and the files usually shrink a lot.
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Logos and icons
Use 90% or higher so edges stay crisp. Keep the original PNG as your master copy.
🛍️
Product images with transparency
Use 85-90%. The transparent background is kept, so they still sit cleanly on any page.
📷
Photos saved as PNG
Use 80-85%. These usually see the biggest savings, because PNG photos are very large.
Convert PNG to WebP on iPhone, Android, Windows and Mac
FreeConverto runs in your browser, so the steps are almost the same on every device. There is nothing to download or install.
📱
iPhone and iPad
iPhone screenshots are saved as PNG, so this is a quick way to shrink them for a website. Open this page in Safari, tap the upload area, choose your files, set the quality and tap Convert to WebP.
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Android
Open this page in Chrome, tap the upload area and pick PNG files from your gallery or files. Convert, then download them one by one or as a ZIP.
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Windows
Drag PNG files from File Explorer into the upload area. It works in Edge, Chrome and Firefox, with no software to install.
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Mac
Drag PNG files from Finder into the upload area. It works in Safari, Chrome and Firefox, and you can convert up to 20 images at once.
PNG vs WebP at a Glance
A quick comparison of the two formats so you can pick the right one for your image.
PNG
Best for logos, screenshots and transparency
Lossless quality with full transparency support. Ideal for sharp text, logos and graphics, but files are much larger than JPG or WebP for photos.
WebP
Best for fast websites
A modern format with lossy and lossless modes plus transparency. Typically around 25-35% smaller than JPG at similar quality, but a few older apps cannot open it.
Good to know: The WebP files made here use lossy compression at your chosen quality, so they can differ very slightly from the PNG. Keep your original PNG if you need exact pixels, for example for editing or archiving. For text-heavy graphics, use a higher quality such as 90%. A few older apps cannot open WebP, so use WebP to PNG to convert back when needed.
PNG to WebP Converter: Frequently Asked Questions
How do I convert PNG to WebP?
Upload your PNG files with the converter above, set the quality, click Convert to WebP and download the results one by one or all together as a ZIP.
Does PNG to WebP keep transparency?
Yes. WebP supports transparency, so transparent backgrounds in your PNG stay transparent.
How much smaller is WebP than PNG?
It depends on the image, but screenshots, graphics and photos saved as PNG often become much smaller as WebP, especially at 80-90% quality.
Why is my WebP file larger than the PNG?
For very small or simple images, such as flat-colour icons, the PNG can already be tiny, and a very high quality setting can make the WebP bigger. Try a lower quality, or keep the PNG if it is already small.
Is the WebP output lossless?
No. The WebP files are created with lossy compression at the quality you choose. Keep the original PNG if you need a pixel-perfect copy.
What quality should I choose for PNG to WebP?
Use 85-90% for most images and 90% or higher for graphics with fine text. Lower it for the smallest files.
Is WebP better than PNG?
For websites, usually yes: WebP files are typically much smaller and still support transparency. PNG is better when you need a pixel-perfect lossless copy or must open the file in older software.
Will the WebP have the same size and resolution as my PNG?
Yes. The WebP keeps the exact pixel dimensions of your PNG. Only the file format and the file size change.
Can I use the WebP files on my website?
Yes. All modern browsers support WebP, and WordPress accepts WebP uploads in current versions.
Can I use a WebP image as my website logo?
Yes. All modern browsers show WebP logos with transparency. Use a quality of 90% or higher so edges stay crisp, and keep the original PNG as your master copy.
Can I convert several PNG files at once?
Yes. Convert up to 20 images in one batch and download them together as a ZIP.
How do I convert PNG to WebP on iPhone or Android?
Open this page in your phone's browser, tap the upload area, choose your PNG files, set the quality and tap Convert to WebP. Download the results one by one or as a ZIP. No app is needed.
Are my images uploaded anywhere?
No. Everything runs in your browser, so your images never leave your device. The tool is free with no sign-up and no watermark.
More Free Image Converters and Tools
Need a different format or want to resize or compress your images? Try these free tools. All of them work in your browser with no sign-up.