Local by design
Your files remain on your device. The browser handles decoding, resizing, and encoding.
Private PNG-to-WebP conversion in your browser. Nothing is uploaded.
JPEG, PNG, WebP or AVIF · 30 MB maximum
The converter runs locally in your browser. There is no account, server upload, or waiting for a remote job to finish.
Add one file or a batch of JPEG, PNG, WebP, or AVIF images up to 30 MB each.
Choose WebP or AVIF, adjust quality, and use extra controls when you need resizing or lossless WebP.
Save images individually or download the completed batch together as a ZIP file.
PNG is ideal for screenshots, logos, interface graphics, and images that need transparency, but detailed PNG files can become large. WebP keeps transparency while offering both lossy and lossless compression, making it a practical alternative for many websites.
Start at 90% quality for a smaller file with a close visual match. For crisp graphics where every pixel matters, open More options and enable lossless WebP. The original PNG stays untouched on your device.
Your files remain on your device. The browser handles decoding, resizing, and encoding.
Process several images with the same settings and collect the finished files in one ZIP.
Balance quality and file size, resize proportionally, or use lossless WebP for pixel-perfect output.
For most websites, WebP at 90% is a dependable default. Try AVIF when the smallest possible file matters and you can spend a little longer encoding it.
The converter has no image upload endpoint. Your browser decodes, resizes and encodes each file locally. Standard host request logs never contain your image files or conversion settings.
Send feedbackPractical answers about quality, privacy, supported files, and browser-based conversion.
No. The image data is decoded and converted inside your browser. The website has no image upload endpoint.
You can add JPEG, PNG, WebP, and AVIF files and export them as WebP or AVIF. Each source image can be up to 30 MB.
WebP is a dependable default with fast encoding and broad support. AVIF often creates smaller files, especially for photographs, but takes longer to encode.
Start at 90% for general website use. Lower it when file size matters more, or raise it for screenshots, text, and detailed artwork.
Yes. WebP and AVIF both support transparency, so transparent areas in compatible source files can remain transparent.
The converter applies the source orientation and creates a new output without copying EXIF, location data, comments, or other source metadata.