How to convert PNG to WebP
- 1 Drop your PNG images on the box, or click browse to choose them. You can add many at once.
- 2 Choose the quality; Maximum keeps text and edges sharpest.
- 3 Press Convert. One image downloads directly; several come in a ZIP file.
- 4 Check the new size and file size shown under each image.
When WebP beats PNG
WebP shines for photos and complex graphics saved as PNG. Simple flat logos are often best as SVG. For JPG photos, use JPG to WebP; to return to PNG, use WebP to PNG.
- Use Maximum quality for screenshots with small text.
- Keep the PNG master for future edits.
- Compare file sizes in the list before downloading.
Features
Transparency kept
Logos and cut-out product images keep their transparent background.
Much smaller
Often far smaller than the PNG, especially for photos.
Batch
Convert many PNG files in one go.
When to use it
Website graphics
Replace heavy PNG banners and illustrations with WebP. For JPG photos, use JPG to WebP.
Product cut-outs
Transparent product photos for online shops load faster as WebP.
App assets
Mobile apps and games can use WebP to reduce download size.
Screenshots
Screenshots saved as PNG shrink a lot as WebP at high quality.
Related Image tasks
Frequently asked questions
Does WebP support transparency?
Yes. WebP supports full alpha transparency, so transparent PNG areas stay transparent.
How much smaller will my files be?
It varies. Simple graphics may shrink a little, while photos saved as PNG often become several times smaller.
Will text in screenshots stay sharp?
Choose Maximum quality for screenshots with small text. Lower settings can blur fine lines slightly.
Can I convert back to PNG?
Yes, with the WebP to PNG converter. The quality you chose for WebP will carry over.
Why is my WebP bigger than the PNG?
Very small or flat-colour PNGs are already efficient. Keep the PNG in that case, or try a lower quality.
Do email apps show WebP?
Many do, but some older email clients do not. Use PNG or JPG for email newsletters to be safe.
Is there a limit on the number of files?
No fixed limit; very large batches depend on your device's memory.
Should I convert every PNG on my site?
Large PNG photos and banners benefit most. Tiny icons may not shrink much, and SVG is often better for simple logos and icons.
Does converting change the colours?
No noticeable change. Colours stay the same, although lossy compression can slightly soften smooth gradients at lower quality settings.
Can WordPress use WebP images?
Yes. WordPress has supported WebP uploads since version 5.8, and most themes display them like any other image, so you can upload the converted files directly.
Do I need to install anything?
No. The converter runs in any modern browser on Windows, Mac, Android or iPhone, with nothing to download or sign up for.
How this tool works. These image tools run entirely in your browser using the Canvas API built into every modern browser, the open-source libheif decoder for iPhone HEIC photos and Tesseract, a widely used open-source OCR engine, for reading text. Each tool is tested with real phone photos, screenshots and scans before it goes live, and nothing you open is sent to a server.
Built and reviewed by Hamza Farooq, founder and lead developer
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