Image to WebP
Upload a JPG, PNG or other image and convert it into the modern WebP format — smaller file sizes with comparable visual quality, converted entirely in your browser.
Click to upload, or drag and drop an image
Nothing is uploaded to a server — everything happens in your browser
How to Use This Tool
Upload your image
Click the box above or drag and drop any JPG, PNG or similar image file.
Wait for the instant conversion
Your image is re-encoded to WebP format automatically.
Compare the file sizes
Check the before/after size shown beneath the preview.
Click Download WebP
Save the smaller, modern-format file to your device.
About the Image to WebP Converter
WebP is a modern image format developed by Google that typically produces significantly smaller file sizes than JPG or PNG at a comparable visual quality — often 25-35% smaller than JPG for similar quality photographs, and smaller than PNG for graphics too, since it supports both lossy and lossless compression along with transparency.
Smaller image files directly translate into faster page load times, which matters both for user experience and as a ranking factor search engines increasingly weigh through Core Web Vitals metrics like Largest Contentful Paint.
This tool converts any image your browser can display into WebP format locally, using the Canvas API's native WebP encoding support — no server round-trip, no waiting, and your original image never leaves your device.
Frequently Asked Questions
Is WebP supported by all browsers and platforms?
WebP is supported by all major modern browsers — Chrome, Firefox, Edge, and Safari (from version 14 onward) — covering the vast majority of web traffic today. Very old browser versions may not support it, which is why some sites still provide a JPG/PNG fallback.
How much smaller are WebP files compared to JPG or PNG?
It varies by image content, but WebP commonly achieves 25-35% smaller file sizes than JPG at equivalent visual quality, and can be substantially smaller than PNG for images that don't strictly need lossless compression.
Does converting to WebP reduce image quality?
This tool uses WebP's high-quality lossy encoding by default, which preserves excellent visual quality while still achieving meaningful file size savings — similar to how a high-quality JPG looks nearly identical to the source despite being compressed.
Can WebP images have transparency, like PNG?
Yes, WebP supports full alpha transparency similar to PNG, in addition to offering better compression — one of the reasons it's increasingly used as a modern replacement for both JPG and PNG use cases.
Should I use WebP for all images on my website?
For most web use cases, yes — WebP is well-suited to product photos, blog images, and general web graphics where smaller file size directly improves load time. For source files you plan to edit repeatedly, a lossless format may still be preferable to avoid repeated compression generations.
Why did my conversion fail or produce an error?
This usually means your specific browser version doesn't support WebP encoding through the Canvas API, which is rare but can happen on older browser versions. Try updating your browser or switching to a current version of Chrome, Firefox, Edge or Safari.