This converter uses the WebP encoder built into your browser's Canvas API. It decodes one image, draws the displayed pixels to a local canvas, and creates a fresh WebP file without resizing or cropping. Transparency from a PNG or WebP is preserved, while source metadata such as EXIF camera details and GPS coordinates is not copied into the new file.
Private browser utility / Images
Free Image to WebP Converter
Runs entirely in your browser - no upload, no sign-up.
Your image is converted locally and never uploaded.
What does an image to WebP converter do?
An image to WebP converter re-encodes a PNG, JPG, or existing WebP image in the WebP format. This tool keeps the displayed pixel dimensions, lets you choose the lossy quality, and shows the exact output size beside the original. Conversion happens on your device, so the file is never uploaded.
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How to use
- 01Choose an image
Drop in a PNG, JPG, or WebP file up to 50 MB, select one from your device, or load the built-in example.
- 02Set WebP quality
Use the slider or a quality preset. Start at 82% for a practical balance, then adjust for your image and file-size target.
- 03Convert and compare
Create the WebP, inspect both previews, and check the exact original size, output size, percentage change, and dimensions.
- 04Download the WebP
Save the converted file when the preview and file size meet your needs, or change the quality and convert again.
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Who it's for
- Website owners can prepare lighter hero images, product photos, and blog graphics before adding them to a content system.
- Developers can convert PNG and JPG assets to WebP for performance budgets, responsive image sets, and test fixtures.
- Designers can compare the original and converted previews before handing a web-ready file to a client or teammate.
- Privacy-conscious users can convert personal photos or unreleased artwork without sending the source file to a conversion server.
FAQ
Is my image uploaded during conversion?
No. Your browser decodes the source image and creates the WebP locally with the Canvas API. The original file and converted output are not sent to a processing server. This keeps personal photos, client assets, and unreleased designs on your device.
Is this image to WebP converter free?
Yes. You can convert and preview an image, copy the rendered result, and download the WebP without a subscription, watermark, credit balance, or sign-up. The practical limits come from your browser's memory and this tool's safety limits of 50 MB, 50 megapixels, and 16,384 pixels per side.
How many images can I convert?
You can convert one image at a time and repeat the process as often as needed. There is no daily quota. The one-file workflow keeps browser memory use predictable and makes it easy to inspect each WebP before downloading it.
Which image formats can I convert to WebP?
The converter accepts PNG, JPG or JPEG, and WebP images. It does not accept HEIC, TIFF, SVG, animated GIF, camera RAW, or PDF files. An existing WebP can be re-encoded at a different quality, though that adds another lossy compression step.
What WebP quality should I choose?
Start around 82% for general web images, then judge the preview at the size where it will appear. Photographs may tolerate a lower setting. Screenshots, logos, and images with small text often need a higher setting to keep sharp edges clean.
Will converting to WebP always make the file smaller?
No. The result depends on the source format, image content, dimensions, original encoder, and chosen quality. A large PNG often shrinks substantially, while an efficient JPEG or WebP may not. The tool reports a size increase honestly so you can keep the better file.
Does WebP preserve transparency and metadata?
Transparent pixels from PNG and WebP inputs stay transparent in the converted image. Canvas re-encoding does not copy source metadata such as EXIF camera settings, GPS coordinates, capture dates, or embedded profiles into the new WebP file.