Convert PNG, JPG, JPEG or BMP images to WebP, several at once, with an adjustable quality slider and a download-all-as-ZIP option. WebP files run roughly 25–35% smaller than JPEG or PNG at comparable quality and support transparency — conversion runs in your browser, so nothing is uploaded.
Click or drag and drop files here. You can select multiple files.
Supports PNG, JPG, JPEG, BMPWhat is WebP?
WebP is a modern image format developed by Google that makes files roughly 25–35% smaller than JPEG or PNG at comparable quality. It supports both lossy and lossless compression as well as transparency (an alpha channel), so it is widely used to cut web page size and speed up loading without noticeably hurting quality.
How to convert PNG/JPG to WebP
- Select files — click the ‘Input Files’ area or drag PNG, JPG, JPEG, or BMP files onto it. You can pick several at once.
- Adjust quality — use the quality slider (1–100) under ‘Options’ to balance image quality against file size.
- Start conversion — click ‘Start Conversion’ and it runs instantly right in your browser.
- Download — save the converted images individually or grab them all at once with ‘Download All (ZIP)’.
How do I set the quality?
A higher quality value means a better-looking image but a larger file. For most web images, 75–85 is a good balance between quality and size. Raise it for logos and screenshots where sharpness matters, lower it for photos where size matters, and compare the results.
WebP vs PNG vs JPG — which should you choose?
PNG has traditionally suited transparency, logos, and sharp-edged graphics, while JPG suits colorful photos. WebP combines the strengths of both — transparency plus smaller size — so for web use targeting modern browsers it is usually the most efficient choice. If you need even higher compression, consider AVIF as well.
Are my images uploaded?
No. Every conversion runs entirely in your browser using the Canvas API, on your own device, and files are never sent to a server. It even works offline, so private or sensitive images stay safe. You can add several images at once and download them individually or together as a single ZIP.
Can I convert WebP back to PNG or JPG?
This tool focuses on converting to WebP. To go the other way, use the PNG converter or JPG converter. Note that JPG is a lossy format, so it won’t perfectly restore the original PNG’s lossless quality.
Which browsers support WebP?
Chrome, Edge, Firefox, Safari, Opera, and other modern browsers all support displaying WebP and this tool’s conversion. Only some very old browsers may display it with limitations.