If you run a website, an online shop or a blog, images are probably the heaviest part of every page. Every extra megabyte costs your visitors time and mobile data, and slow pages lose readers and customers. Converting JPG photos to WebP is one of the easiest improvements you can make. This guide explains what WebP offers, how to use the JPG to WebP converter, and how to choose settings that keep images looking great.
Why WebP?
WebP was designed specifically for the web. Its compression is more efficient than JPG's, so a WebP photo is commonly 25 to 35 percent smaller than a JPG of similar visual quality. On a page with twenty product photos, that saving adds up quickly.
WebP also supports transparency and animation, so a single format can replace JPG, PNG and GIF in many situations. All modern browsers display WebP, including Chrome, Edge, Firefox and Safari on current devices.
When JPG to WebP makes sense
- Website images: product photos, blog headers, gallery images and backgrounds.
- Storage savings: if you keep large collections of images online, smaller files mean lower costs.
- Faster sharing: smaller images upload and download faster on slow connections.
When to keep JPG
- Printing: print shops and photo labs usually expect JPG or TIFF.
- Older software: some desktop programs and devices still cannot open WebP.
- Email attachments: recipients might use mail programs that do not preview WebP.
A sensible approach is to keep your original JPG and use WebP copies on your website.
Quality and lossless options
The converter offers two settings for WebP:
Quality
The quality slider runs from 1 to 100. Higher values keep more detail and produce larger files. For photos, a value between 75 and 85 usually gives excellent results. Because your JPG has already been compressed once, there is little benefit in going very high; you would mostly preserve the existing JPG artefacts rather than add detail.
Lossless
Lossless WebP stores every pixel exactly. For photographs, lossless files are much larger and rarely worth it. Lossless shines for screenshots, illustrations and graphics with flat colours, where it can beat PNG on size. For a JPG photo, leave lossless switched off.
Step by step
- Open the JPG to WebP tool.
- Choose your JPG or drag it onto the page. Both .jpg and .jpeg files work.
- The page checks the file type, size and dimensions before uploading.
- Set the quality, or leave the default.
- Keep Lossless off for photos.
- Press Convert to WebP and download the result.
The result page shows the new file size, so you can compare it with your original straight away.
Getting the most from WebP on your website
Resize to the display size
The biggest saving usually comes from not sending images larger than they are displayed. If your blog column is 800 pixels wide, a 4,000 pixel photo wastes bandwidth no matter which format you use. Resize first, then convert.
Keep consistent quality across a page
Using the same quality setting for every image on a page keeps them visually consistent. Pick a value, check a few images, and stick with it.
Provide a fallback if you support very old browsers
If you must support very old browsers, many content systems can serve WebP to modern browsers and JPG to older ones. For most audiences today, WebP alone is fine.
Orientation, colour and metadata
Phone photos often rely on a hidden rotation tag. The converter applies that rotation to the pixels so the WebP is upright everywhere. Embedded colour profiles are kept so colours stay accurate. Camera information and GPS location are not copied, which means you do not accidentally publish where a photo was taken.
Limits
The tool page lists the maximum file size and image dimensions. Typical photos are well within them. If your file is too large, you will be told why before conversion begins.
Privacy
Your photos are processed privately and are never published. Download links are personal and short-lived. Uploaded images and converted files are deleted automatically after a short retention period, and guest files are removed soon after download.
Frequently asked questions
How much smaller will my image be? It varies by photo, but savings of a quarter to a third compared with a similar quality JPG are common. Images with large smooth areas often shrink even more.
Will people notice a difference? At quality 75 to 85, side-by-side differences are very hard to spot on a normal screen.
Can I convert back to JPG later? Yes, with WebP to JPG. Each lossy conversion loses a little detail, so keep your original JPG if you might need it.
Should I use lossless for photos? Generally no. Lossless is best for graphics and screenshots.
A worked example: a small online shop
Imagine a shop with forty product photos, each exported from a phone as a JPG of around 3 MB at 4,000 pixels wide. The product pages show them at about 1,000 pixels wide. Here is a practical routine:
- Resize each photo to 1,200 pixels wide, leaving a little room for high-resolution screens.
- Convert each resized JPG to WebP at quality 80.
- Compare a couple of results on your phone and laptop. If you cannot see a difference, keep the setting.
- Upload the WebP versions to your shop.
In a routine like this, each image often drops from several megabytes to a few hundred kilobytes, mostly thanks to resizing, with WebP adding a further saving on top. A product page that used to download tens of megabytes now loads a small fraction of that, which customers on mobile data will feel immediately.
How to check the result
Open the original and the WebP side by side at the size your visitors will see them. Look at areas that are hardest to compress: fine textures such as fabric, smooth gradients such as sky, and sharp edges around text or logos. If everything looks the same, your quality setting is right. If you spot blur or blotches, raise the quality by five and try again.
Common mistakes
- Converting tiny icons that are already small. The saving may be a few bytes. Focus on your largest images first.
- Using lossless for photos. It keeps files large. Lossless is for graphics.
- Deleting the original JPG. Keep it for printing and for future edits.
In short
Convert JPG to WebP to make website images smaller and pages faster. Use quality between 75 and 85, leave lossless off for photos, resize to the display size first, and keep your original JPG for printing or editing. It is one of the simplest changes that makes a measurable difference to how quickly your pages load.