Images · Free browser tool
Private PNG to WebP Converter
Convert a PNG image to a smaller WebP copy locally. Preserve transparency, choose quality, and compare the exact file sizes before download.
Runs on this device
No file upload
Free to use
Private workspace
Create a modern WebP copy while keeping the source PNG on your device.
Ready.
Selected file— · Reading…
Choose a file to begin
Create a modern WebP copy while keeping the source PNG on your device.
What this tool does
A focused job, with a visible boundary.
Create a modern WebP copy while keeping the source PNG on your device.
Adjustable WebP quality
Exact before-and-after size comparison
Know the limits
Local does not mean unlimited.
Browser processing protects the file from an upload workflow, but the browser, device, output format, and selected settings still matter.
- Animated PNG is not supported.
- Lossy WebP can change fine detail and color.
- Source metadata is not guaranteed to survive browser re-encoding.
Four local steps
How to use png to webp.
- 01
Choose one PNG image.
- 02
Select the desired WebP quality.
- 03
Convert and compare the source and output sizes.
- 04
Download the WebP copy.
Clear answers
PNG to WebP questions.
Will transparency remain transparent?
Yes, when the browser decodes the source transparency correctly. The preview uses a checkerboard so transparent areas remain visible.
Is WebP always smaller than PNG?
Usually for photographs and complex images, but not always for tiny or simple graphics. The tool reports the exact result before download.
Does conversion happen locally?
Yes. The selected PNG is decoded and encoded by the browser on this device.