WebP Converter
Convert PNG, JPG, and GIF images to WebP format online — or convert WebP back to PNG. Adjust quality, preview results, and download instantly. Free, browser-based, no upload.
How to Use
- Choose a conversion direction: PNG/JPG/GIF → WebP or WebP → PNG.
- Adjust the Quality slider (WebP output only) — 85 is a good default.
- Drop your images onto the drop zone or click to open the file picker.
- Each file shows a thumbnail, original size, converted size, and savings percentage.
- Click Download next to any file, or Download All to save everything at once.
When to Convert Images to WebP
- Web performance: Replace JPEG/PNG assets on websites to reduce page weight and improve Core Web Vitals scores.
- Email campaigns: Smaller images load faster in email clients that support WebP.
- App development: Use WebP in mobile and web apps to reduce asset bundle size.
- CDN cost reduction: Smaller files mean less egress bandwidth billed by your CDN.
WebP vs JPEG vs PNG
WebP supports both lossy and lossless compression, as well as transparency (like PNG) and animation (like GIF). For photographic content, WebP lossy at quality 80 typically matches JPEG quality 90 at roughly half the file size. For graphics with transparency, WebP lossless beats PNG by 20–30% on average.
FAQ
What is WebP and why should I use it?
WebP is a modern image format developed by Google that provides superior compression for both lossy and lossless images. WebP files are typically 25–35% smaller than JPEG or PNG at equivalent visual quality, making pages load faster and reducing bandwidth costs.
Is my image uploaded to a server?
No. All conversion happens entirely in your browser using the Canvas API. Your images never leave your device.
What does the Quality slider control?
Quality (0–100) sets the lossy compression level when converting to WebP. Higher values preserve more detail but produce larger files. A value of 80–90 is a good starting point for photographs; 60–75 works well for illustrations.
Can I convert WebP back to PNG?
Yes. Switch the mode to 'WebP → PNG' and drop your WebP files. The tool uses lossless PNG output so no additional quality is lost.
Why is my converted file larger than the original?
Some images — especially ones already heavily compressed — may not compress further. PNG screenshots and simple graphics can actually be smaller in PNG than in lossy WebP at high quality settings. Try lowering the quality slider.
How many files can I convert at once?
There is no hard limit. You can select or drop multiple files and they will all be processed in parallel. Download each file individually or use 'Download All' to trigger batch downloads.