Will WebP display for all my visitors?

Yes for practical purposes — Chrome, Edge, Firefox, Safari and every current mobile browser support it. Only very old desktop browsers do not, and those visitors are a rounding error on most sites.

How much smaller will the files be?

Photographs typically shrink 25–50% at the same perceived quality. Images already compressed hard as JPG save less, because much of the redundancy is gone.

Is WebP lossy like JPG?

This tool uses lossy WebP, which is what makes it small. Because you are re-encoding an already-lossy JPG, keep quality at 80% or above to avoid stacking artefacts.

Can I convert back later?

Yes — use our WebP to JPG or WebP to PNG tool. Keep the originals though; no conversion recovers detail already discarded.

Are my images uploaded anywhere?

No. Conversion runs inside your browser tab using the HTML Canvas API. The image data never leaves your device, and nothing is stored once you close the tab.

Is there a file size or count limit?

You can queue up to 40 images at a time, each up to 50MB. The real ceiling is your device's memory — very large photos are best done in smaller batches on a phone.

Does it work on a phone?

Yes. The interface is responsive and touch-friendly, and converted files save straight to your device's downloads.

Do you add a watermark or resize my image?

Never. Output is exactly what you asked for — the original dimensions unless you deliberately choose a resize option.

JPG to WebP Converter

Shrink photos for faster websites — WebP is dramatically smaller than JPG at the same quality, and every modern browser displays it.

No training on your data
Region: global

Drop images here, or click to browse

Up to 40 files · converted on your device, never uploaded

Quality — 82%

80–90% is the sweet spot: visually identical, much smaller.

Resize

Images are only ever scaled down unless you pick a scale above 100%.

Design & Creative AssetsImage Manipulation

JPG to WebP — Overview

About this tool

What is JPG to WebP?

JPG to WebP re-encodes your JPG photographs as WebP, the format Google built specifically to make web pages load faster. At matched visual quality a WebP is typically 25–50% smaller than the same JPG, and every browser released in the last several years displays it natively.

That saving is the single cheapest performance win available to a website owner. Images are usually the heaviest thing on a page, so halving their weight moves Largest Contentful Paint — the Core Web Vitals metric Google actually ranks on — more than almost any code change.

Conversion runs on your device using the browser's own WebP encoder, so there is no upload, no queue and no limit on how many product shots or gallery images you push through in an afternoon.

What it does

What does JPG to WebP do?

A straight swap for a lighter format:

Batch convert up to 40 JPGs in a single pass
Quality slider from visually lossless down to aggressive compression
Optional resize so oversized camera files get capped at the same time
Before-and-after totals so you can see exactly what you saved
Nothing uploaded — safe for unreleased product photography
Original filenames preserved with a .webp extension

How to use

How to use JPG to WebP

1
Drop your JPGs
Add a single photo or a whole folder. Only JPG/JPEG files are accepted so nothing converts by mistake.
2
Pick a quality level
80% is the sweet spot for photographs — indistinguishable from the original at roughly half the bytes. Drop to 65% for thumbnails and hero backgrounds.
3
Download and deploy
Save individually or as a zip, then upload to your site or CMS in place of the JPGs.

Good to know

Privacy & cost

This tool runs entirely in your browser. Nothing is uploaded, logged, or saved on our servers — safe for confidential or proprietary data.

Use cases & scenarios

Where it fits

Speeding up a slow website

Convert every photo on a landing page and the total image payload usually falls by a third or more — visible in Lighthouse immediately.

Shrinking a product catalogue

E-commerce galleries with hundreds of shots benefit most; batch through them 40 at a time.

Staying inside a hosting quota

Shared hosting and static-site build limits go a lot further with WebP assets.

Which format should I use?

JPG for photographs and anything you e-mail. PNG when you need transparency or perfectly sharp screenshots and diagrams. WebP when you control a website and want the smallest files. AVIF for the very smallest files, when you know your audience uses recent browsers.

Value & benefits

Why people pick this tool

✓Free forever — no file caps, watermarks, sign-ups or premium tier
✓100% in-browser conversion — your images never touch a server
✓Batch mode: convert up to 40 images in one pass and download a single .zip
✓Works offline once the page has loaded
✓No queues, no e-mail-me-the-link, no ads stapled to your download

Frequently asked questions

FAQs

Final thoughts

The bottom line

WebP is the rare optimisation with no real trade-off: smaller files, same picture, universal support. Converting locally means your unreleased photography never sits on someone else's server to get there.

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Every converter below runs entirely in your browser — your photos never leave your device.