WebP Converter
Convert JPG & PNG images to WebP format. Smaller file sizes with better quality.
Drop your image here
or click to browse your files
Supports JPG, PNG (Max 10MB recommended)
WebP is a modern image format developed by Google that typically produces 25-35% smaller files than JPG or PNG at comparable visual quality. That efficiency is one of the reasons Google PageSpeed Insights and Core Web Vitals reports frequently suggest serving images in 'next-gen formats' when auditing a site.
Converting existing JPG or PNG assets to WebP before uploading them to a website can noticeably improve page load speed, particularly on mobile connections where every kilobyte counts toward how quickly a page becomes usable.
This tool reads your image and re-encodes it directly to WebP using your browser's native image encoding support, so there's no separate installation step or command-line tool required.
WebP achieves its efficiency using more advanced compression techniques than the older JPG standard, including better prediction of pixel values from neighboring blocks. The trade-off historically was slightly higher computational cost to encode and decode, though this is essentially unnoticeable on any modern device or browser today.
It's also worth knowing that WebP supports both lossy and lossless modes, similar to having JPG and PNG's properties combined in one format — this converter uses lossy WebP by default, which is the right choice for typical photographic content destined for the web.
It's worth pairing WebP conversion with a broader look at your site's overall image strategy rather than treating it as a one-time fix. Images that are resized to their actual display dimensions before converting to WebP compound the savings — a correctly sized WebP image can end up a fraction of the size of an oversized, uncompressed JPG serving the same visual purpose on a page.
Step-by-step instructions
- 1
Upload a JPG or PNG image
Select or drag your source image into the tool.
- 2
Click Convert to WebP
The browser re-encodes the image into the WebP format.
- 3
Compare file sizes
The output typically shows a noticeably smaller size than the original.
- 4
Download the WebP file
Save the converted image for use on your website or app.
Common use cases
Website performance optimization
Serve smaller image files to improve Core Web Vitals scores and page load times.
Reducing hosting bandwidth
Smaller WebP files mean less data transferred per page view, which can reduce hosting costs at scale.
App asset optimization
Ship lighter image assets in web apps without a visible drop in quality.
SEO improvements
Faster-loading pages tend to perform better in search ranking factors tied to page experience.
Reducing mobile data usage
Serving WebP images to mobile visitors on limited data plans reduces the data consumed loading a page, which some users notice directly.
Tips for best results
- Always keep an original JPG/PNG copy — WebP is best used as a delivery format, not necessarily your only archive.
- Test WebP images visually at 100% zoom before publishing, since compression artifacts vary by source image.
- Combine WebP conversion with compression for the smallest realistic file size.
- Check that your website's content management system or server correctly serves WebP with appropriate fallbacks for very old browsers.
- WebP's lossless mode exists for cases needing PNG-like exactness, but for typical web photos, the lossy mode used here offers the best size-to-quality trade-off.
- Check your CMS or hosting platform's documentation to confirm it serves WebP correctly with an appropriate fallback for very old browsers if that matters for your audience.
Frequently asked questions
Do all browsers support WebP?
Yes, all major modern browsers — Chrome, Firefox, Safari, and Edge — support WebP, making it safe to use on most public-facing websites today.
Does WebP support transparency like PNG?
Yes, WebP supports an alpha channel, so images with transparent backgrounds convert without losing that transparency.
How much smaller will my file be?
Typical reductions are 25-35% compared to JPG or PNG at similar visual quality, though the exact amount depends on the image content.
Can I convert WebP back to JPG or PNG?
Yes, use the PNG to JPG or other converters after downloading; WebP is not a one-way format.
Does WebP support both lossy and lossless compression?
Yes, similar to how JPG and PNG each specialize in one, WebP supports both modes; this tool uses lossy WebP, the better choice for typical photos.
Will old browsers break if I only serve WebP?
Very old browsers without WebP support may fail to display the image; check whether your platform can serve a JPG fallback automatically if that audience matters to you.
Should I resize images before converting them to WebP?
Yes — resizing to the image's actual display dimensions first, then converting to WebP, compounds the file size savings compared to converting an oversized original.