Convert PNG to WEBP
Turn your PNG image into a WebP image — free, fast and without installing any software. This converter runs entirely in your browser: your files are processed locally and never uploaded to a server. You can convert multiple files at once and download everything as a ZIP.
Your files never leave your device — this conversion runs 100% in your browser.
How to convert
- 1
Upload your PNG file — drag & drop it into the box or click “Choose files”. You can convert several files at once.
- 2
Click “Convert now”. The conversion starts immediately and usually takes just a few seconds.
- 3
Download your finished WEBP file — individually or all files together as a ZIP archive.
About the PNG format
PNG is a lossless image format that preserves every pixel exactly and supports transparency. It is the standard choice for logos, screenshots, graphics with text and anything that needs a transparent background.
Why convert to WEBP?
WebP is a modern image format developed by Google. It compresses roughly 25–35% smaller than JPG at comparable quality and supports transparency, which makes it popular for fast-loading websites. Choose WebP for websites and online shops: smaller files mean faster pages and better Core Web Vitals.
Frequently asked questions
Is the PNG to WEBP converter really free?
Yes. Converting PNG to WEBP on ConvertInSeconds is completely free — no sign-up, no watermarks and no hidden costs. The service is financed through advertising.
Is it safe to convert my files here?
Yes — this particular conversion runs 100% in your browser. Your PNG files are never uploaded anywhere; all processing happens locally on your own device.
Can I convert several files at once?
Yes. Simply drop multiple PNG files into the upload box — they are converted in one go, and you can download the results individually or bundled as a ZIP archive.
Will the quality suffer when converting PNG to WEBP?
WEBP uses lossy compression, so there is a small trade-off between file size and quality. You can control it with the quality slider — at 90% or higher the difference is practically invisible.
Related converters
PNG to JPG
Convert PNG image to JPEG image online, free and private. Runs 100% in your browser
WEBP to JPG
Convert WebP image to JPEG image online, free and private. Runs 100% in your browser
WEBP to PNG
Convert WebP image to PNG image online, free and private. Runs 100% in your browser