How to use the JPG to WebP Converter
Step 1: Drag a JPG or JPEG image onto the upload box, or tap it to choose a file.
Step 2: Wait a moment while your browser converts it. A preview appears automatically.
Step 3: Adjust the Quality slider if you want a smaller file or more detail. The default is 80 percent.
Step 4: Compare the original and WebP previews and file sizes.
Step 5: Press Download WebP to save the converted file.
Features and benefits
Smaller files
WebP is designed to compress photos more efficiently than JPG, so converted images are often smaller at similar visual quality. Results vary from image to image.
Quality control
Choose how much detail to keep. The preview and file size update as you move the slider.
Side-by-side comparison
See the original and converted images next to each other with exact file sizes and the percentage saved.
Fully private
Conversion happens in your browser. The photo is never uploaded, stored or shared.
Strict file checking
The tool checks what is actually inside the file, not just its name, so a renamed document is rejected with a clear message.
What happens when you convert JPG to WebP
The browser decodes your JPG into pixels, draws them on a canvas and asks its WebP encoder to write a new file at the quality you chose. Both JPG and WebP are lossy formats, so converting an already compressed JPG compresses it a second time. For the best results start from the highest-quality original you have, and keep the original JPG.
Camera information and GPS location stored in the JPG are not copied to the WebP file, because the browser creates fresh image data.
When WebP is the right choice, and when it is not
WebP is supported by all current major browsers, which makes it a good default for images displayed on websites. Some older programs, email clients, print services and upload forms still accept only JPG or PNG, so check what the destination allows before you convert.
A practical approach is to keep your master photos as JPG or the camera's original format, and create WebP copies for the web.
Tips for the best results
A quality between 75 and 85 percent is a good range for photographs. If the WebP comes out larger than the JPG, which can happen when the JPG was already heavily compressed, lower the quality or keep the JPG. For even smaller files, resize the image with the Image Compressor before converting.
Example use cases
Speeding up a blog or portfolio
Replace heavy JPG photos with WebP versions to reduce page weight.
Following speed-test suggestions
Tools such as PageSpeed Insights often recommend serving images in modern formats like WebP.
Online shops and CMS uploads
Many platforms accept WebP and recommend it for product and banner images.
Saving storage
Large photo libraries on a website take up less space when each image is lighter.
Frequently asked questions
Is WebP better than JPG?
For most web photos WebP files are smaller at comparable visual quality, but JPG is more universally accepted by older software and print services. Which is better depends on where the image will be used.
Will converting reduce my photo quality?
A little detail may be lost because WebP compression is lossy, especially at low quality settings. At 80 percent or higher the difference is usually hard to notice. Keep your original JPG.
Can I convert PNG to WebP here?
This tool is for JPG files. To turn a PNG into WebP, open the Image Compressor and choose WebP as the output format.
Why is my WebP larger than my JPG?
If a JPG was already compressed aggressively, a WebP at higher quality can be bigger. Lower the quality slider or keep the JPG.
Is there a file size limit?
Files up to 25 MB are accepted. Extremely large images may exceed what your browser can process.
Related tools
Useful guides
- How to Convert JPG to WebP Online (Free, Private)Step-by-step guide to converting JPG photos to WebP in your browser, choosing a quality setting, checking the result and using the files on your website.
- What Is WebP Image Format? A Plain-English GuideWebP is a modern image format from Google that supports compression, transparency and animation. Learn how it works, when to use it and when to stay with JPG or PNG.
- JPG vs PNG vs WebP: Which Image Format Should You Use?Compare JPG, PNG and WebP on quality, file size, transparency and compatibility, with a simple guide to choosing the right image format for every situation.
Last updated 7 November 2026.