Free Online Tool
PNG to WebP & JPG to WebP Converter
Drop your images below or click to upload. No file limit, no sign-up, no upload to any server — everything happens right in your browser.
Drop images here
PNG, JPG or JPEG files — convert multiple images at once
Tip: higher quality means a larger file size. For general web use, 75–85% is a good starting point.
How it works
Drop or select images
Choose one or more PNG/JPG files from your device.
Set the quality
Adjust the slider — 75–85% works well for most websites.
Download instantly
Each image converts and downloads automatically as .webp.
Why convert to WebP?
- 25–35% smaller file size than PNG or JPG at the same visual quality
- Faster page load times and better Core Web Vitals (LCP) scores
- Supported by all modern browsers (Chrome, Firefox, Safari, Edge)
- Supports both lossy and lossless compression, plus transparency like PNG
WebP vs PNG vs JPG
| Feature | WebP | PNG | JPG |
|---|---|---|---|
| Typical file size | Smallest | Largest | Medium |
| Transparency support | Yes | Yes | No |
| Lossless option | Yes | Yes | No |
| Best for | Websites, apps | Logos, graphics | Photos |
| Browser support | All modern browsers | Universal | Universal |
Related tool
Is your WebP file still too large?
File size depends on pixel dimensions, not just format. Try our free Image Compressor & Resizer to shrink huge photos first.
Frequently asked questions
Is this WebP converter really free, with no limits?
Yes. There is no daily limit, no file-count limit, and no account required. Convert as many images as you need.
Are my images uploaded to a server?
No. The conversion happens entirely inside your browser using the Canvas API. Your files never leave your device.
What image formats can I convert to WebP?
You can convert PNG and JPG/JPEG images to WebP. You can drop multiple files at once and they'll be converted one by one.
Why should I use WebP instead of PNG or JPG?
WebP images are typically 25–35% smaller than equivalent JPGs and PNGs at the same visual quality, which means faster page loads and better Core Web Vitals scores.
Can I control the output quality?
Yes. Use the quality slider (1–100%) to balance file size against visual quality. 75–85% is a good default for most websites.
Can I convert multiple images at once (batch conversion)?
Yes. Drop or select as many PNG/JPG files as you like and each one will be converted and downloaded automatically as a separate .webp file.
Does this work on mobile devices?
Yes. The converter runs in any modern mobile browser. You can select images from your phone's gallery and download the WebP files directly.
Will converting to WebP reduce image quality?
At quality settings of 75% or higher, the visual difference is usually unnoticeable, while the file size drops significantly. You can always increase the quality slider for near-lossless results.