Are my images uploaded to a server?

No. Everything runs in your browser, so the image never leaves your device and nothing is stored on a server.

JPG to WebP

Convert JPG to smaller, modern WebP.

Runs in your browser, nothing is uploadedFree, no signupNo watermark

Drop an image here

or click to choose one. It never leaves your device.

Before and after

See what changes

Six Thridy 3D food icons arranged on a warm gradient background — Both are lossy and both look the same here. The gap is smaller than against PNG, which is the honest version of the WebP pitch.

Both are lossy and both look the same here. The gap is smaller than against PNG, which is the honest version of the WebP pitch.

Drag the handle across the image. The right-hand side is this tool's output, not a mock-up of it.

Before: JPEG, 51 KB
After: WebP, 40 KB, 23% smaller

Three steps

How to use the jpg to webp

01
Drop in your JPGs
Add one or many JPEG photographs.
02
Pick a quality
The default matches typical JPEG quality at a much smaller size. Raise it for images with fine detail.
03
Download the WebP files
Use them directly on the web, where every current browser supports the format.

Why this one

What makes it different

Typically 25 to 35 percent smaller

At matched visual quality, WebP consistently beats JPEG on size, which is the single easiest page-speed win available.

Supported everywhere that matters

Chrome, Safari, Firefox and Edge have all supported WebP for years. The compatibility argument against it has expired.

Better at the hard parts

WebP handles gradients and flat areas with fewer of the blocky artefacts JPEG produces in skies and shadows.

Where it runs: Your browser, not a server
Uploads: None, ever
Account: Not required
Watermark: Never added

The short version

About jpg to webp

WebP is the least controversial performance improvement available to a website: the same picture, a third smaller, supported by every browser people actually use. The reason it is still not universal is inertia rather than any technical objection, and the conversion itself takes seconds.

Questions

JPG to WebP FAQ

Is WebP better than JPEG?

For the web, yes, on size at matched quality, and it handles gradients with fewer artefacts. JPEG still wins on universal compatibility with older desktop software and some print workflows.

Do all browsers support WebP?

Every current browser does, including Safari since 2020. The remaining gaps are old desktop applications rather than browsers.

Will converting JPG to WebP restore quality?

No. Detail the JPEG already discarded is gone. What you gain is a smaller file at the quality you currently have, not a better-looking one.

Should I keep the original JPG?

Yes, if it is the master copy. Converting again from the original always beats converting from a converted file, since each lossy step compounds.

Free, and staying free

The tools are free because the icons are the business.

Thridy is a library of thousands of 3D icons in one consistent style, free for commercial use with no attribution and no account. The tools exist so you never have to upload an image to somebody else's server to resize it.

Browse the icons Request an icon

Keep going

Image Converter

Move between PNG, JPEG and WebP in a click.

JPG to PNG

Convert JPG photos into lossless PNG.

PNG to JPG

Convert PNG to JPG, flattening transparency to white.

WebP to JPG

Convert WebP into widely compatible JPG.

PNG to WebP

Convert PNG to WebP and keep transparency.

WebP to PNG

Convert WebP into lossless PNG with transparency.

All tools