Convert PNG to WebP
WebP is the pragmatic replacement for PNG on the web. It supports transparency, sharp edges, and both lossy and lossless compression. For photographs saved as PNG, switching to WebP often cuts the file size by more than half with no visible difference. For logos and screenshots, WebP usually still beats PNG, though the gain is smaller. This converter runs in your browser and preserves the alpha channel. Quality 85% is a good starting point for photos; the slider tops out at 95% because this browser encoder is lossy. Keep the PNG if the image must remain pixel-identical. WebP is supported by all current major browsers, but some older desktop apps cannot import it.
- Private by design
- Runs in your browser
- No signup
How do I convert PNG to WebP?
Add a PNG, choose a quality level, and press Process. Toolabs converts the image to WebP on a local canvas, keeping transparent pixels intact. The result is usually much smaller than the PNG. Download single files or a ZIP, and compare the before and after size before using it.
How to use it
- Add one or more PNG files.
- Set the WebP quality. Use 80–90% for photos and near 100% for graphics.
- Press Process files to convert locally.
- Compare the original and WebP sizes shown in the results.
- Download each WebP file or all of them as a ZIP.
Why use this tool
Large size savings, especially for photographs saved as PNG.
Transparency is preserved; white boxes do not appear behind logos.
No upload keeps unreleased designs and client assets private.
Batch conversion makes a whole image folder web-ready.
When to use it
- Replacing heavy PNG product photos on an online store.
- Optimizing transparent logos for a faster website.
- Preparing images for a WebP-only CMS or CDN.
- Reducing screenshot attachments without converting to blurry JPG.
At a glance
| Content | PNG | WebP (85%) |
|---|---|---|
| Photograph | Very large | Often 50–80% smaller |
| Transparent logo | Sharp edges, moderate size | Sharp edges, usually smaller |
| Screenshot with text | Sharp, large | Sharp, usually smaller |
| Image for an old desktop app | Universally supported | May not open |
Savings depend on the image. The tool reports the real result rather than an advertised average.
If you need the smallest possible file and do not need transparency, compare WebP with a high-quality JPG. For photos, JPG and WebP are close; for graphics, WebP usually wins.
Frequently asked questions
Is WebP smaller than PNG?
Usually yes, often substantially for photographs. For simple flat graphics the difference is smaller, but WebP still tends to win. The result panel shows the actual saving for your file, so you can decide.
Is transparency preserved?
Yes. The converter keeps the alpha channel, so transparent PNG areas remain transparent in WebP. JPG would replace transparency with white, which is why WebP is the better choice for logos.
Is WebP supported everywhere?
All current versions of Chrome, Safari, Firefox, and Edge support WebP. Older desktop publishing, office, and design applications may not import it. If you need a file for a specific app, check its supported formats first.
Does conversion reduce quality?
This tool uses the browser’s lossy WebP encoder, so some pixel detail is discarded at every slider setting, including 95%. For photos, 80-90% is usually visually indistinguishable and much smaller. Keep the PNG when you need pixel-identical output, because the WebP lossless mode is not exposed here.
Can I convert animated PNG files?
Only the first frame is converted. APNG animation is not preserved. Use a dedicated animation converter if motion matters.
Are my images uploaded?
No. The PNG is decoded and encoded by your browser on a local canvas. Toolabs does not receive the file.
Related tools
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