Convert PNG to WebP
Quick answer
What to expect
Expect 25–35% smaller files with lossless WebP, or 60–80% smaller with lossy WebP at quality 85: visually identical for most images. Transparency is preserved either way. All modern browsers have supported WebP since 2020.
What changes in this conversion
Use this before converting to check whether the output keeps the capability you need.
| Property | PNG source | WebP output |
|---|---|---|
| Transparency | Full alpha | Full alpha |
| Motion | No | Yes |
| Compatibility | Broad support across browsers and image tools | All modern browsers |
| Best suited to | Screenshots, graphics, and transparent assets | Compact web images and lightweight animation |
| Main tradeoff | Lossless files can be large for photographs | Some older creative tools still prefer PNG, JPG, or GIF |
How to finish the conversion
- 01
Open the converter
Use the drop zone on this page or app.fastedit.net. No install, no account.
- 02
Drop your PNG files
Drag in .png images. Select a whole folder to batch-convert site assets with one shared quality setting.
- 03
WebP is pre-selected
This page opens the editor with WebP output ready.
- 04
Choose quality
Quality 85 lossy is the web-performance sweet spot. Use lossless mode only for pixel-art, line art, or images that will be edited again.
- 05
Export and compare
Download the WebP and check the size difference. For a site migration, replace references and verify the pages render identically.
Benefits
- Typically 60–80% smaller than the PNG for photos and screenshots at quality 85: direct PageSpeed/LCP improvement.
- Transparency preserved: WebP supports full alpha, unlike JPG.
- Batch-convert an entire assets folder with one quality setting.
- Universal browser support since 2020: Chrome, Firefox, Safari 14+, Edge.
- Client assets stay on your machine; nothing is uploaded to a third-party server.
Switch formats in the browser, then download the version that actually fits.
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