Can I convert JPG to WebP on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert JPG to WebP on your phone or computer without installing an app.

Is there a free JPG to WebP converter with no sign-up?

Yes, this one. Converting JPG to WebP on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert JPG to WebP without losing quality?

WebP is a lossy format, but our default quality setting (85) keeps the result visually identical to the original. Turn quality up in the options for maximum detail, or down for a smaller file.

Can I batch convert JPG to WebP?

Yes. Add up to 30 JPG files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload JPG files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

JPG to WebP Converter

Convert JPG images to WebP online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your JPG files onto the converter
2
Press Convert to turn them into WebP
3
Download your WebP images one by one or as a ZIP

JPG to WebP

Why convert JPG to WebP?

The main difference: JPG is a lossy format, while WebP is a lossy or lossless format. WebP can have a transparent background, JPG can't.

Supports transparent backgrounds

WebP can hold a transparent background. Convert your image first, then cut out the background or place it on top of other designs.

Lighter images for your website

At the same visual quality, WebP files are noticeably smaller than JPG or PNG. Lighter images mean faster pages, better Core Web Vitals and a small boost for SEO.

JPG vs WebP: what's the difference?

Property	JPG	WebP
Compression type	Lossy (small files, some detail discarded)	Lossy or lossless
Transparent background	No	Yes
Animation	No	Yes
Where it opens	All browsers and devices	All modern browsers; some older apps and upload forms don't accept it
Used for	Photos, sharing, email, social media	Fast-loading website images

What is a JPG file?

JPG (also written JPEG, from the Joint Photographic Experts Group that created it in 1992) is the most widely used photo format in the world. Phones, cameras, websites, email and social networks all handle it.

JPG uses lossy compression: it discards fine detail your eye barely notices, which makes photos 5-10 times smaller than an uncompressed copy. The trade-off is that every re-save loses a little more detail, and it can't store a transparent background.

How to open a JPG file

Every device opens JPG files out of the box: Photos on Windows and Mac, the Photos or Gallery app on iPhone and Android, and any web browser. To edit one, use Photoshop, GIMP, Canva or the free tools on ConvertPixels.

Extensions: .jpg, .jpeg, .jpe, .jfif
Compression: Lossy
Transparency: No
Best for: Photos, sharing, email, websites

What is a WebP file?

WebP is an image format Google introduced in 2010 to make websites load faster. It can compress photos lossily like JPG, or graphics losslessly like PNG - usually with 25-35% smaller files - and it supports transparency and animation too.

That's why so many images you save from websites, including Google Images, arrive as .webp files. Browsers love them; older software and many upload forms still don't.

How to open a WebP file

Chrome, Edge, Firefox and Safari display WebP directly - drag the file into a browser window. Windows 10/11 Photos and Paint and Mac Preview (Big Sur and later) open it as well. If an app or website rejects it, convert it to JPG or PNG.

Extension: .webp
Compression: Lossy or lossless
Transparency: Yes
Best for: Fast-loading website images