THE PIKOZIP IMAGE TOOLKIT

Convert JPG and JPEG photos to WebP.

Convert JPG or JPEG photos to WebP free. Choose quality and dimensions, compare actual file sizes and download a batch of WebP images without uploads.

On-device processing

Choose a fresh format

Choose an output format, then add your images.

Up to 30 images · 10 MB per image

JPEG

JPEG images, processed locally

Output settingsWebP · 85% quality · Original dimensions

Customize

Fine-tune your files

Set your balance of format, file size, and detail.

Start with a useful profile

Choose a starting point, then adjust the details below.

Settings saved on this device

Save current settings

Saved profiles 0/10

Profiles affect new images. Use “Apply to all images” below to update your current batch. Saved profiles contain settings only; your images are never saved here.

Optimization approach

Output format

Smart compares encoded sizes and keeps transparency. JPEG fills transparent areas with white.

Lossy image quality85%

Smaller fileMore detail

Quality applies to JPEG, WebP and AVIF. PNG uses its separate compression mode.

Maximum width

Keeps proportions. Never enlarges.

Target file size OPTIONAL

Lowers quality if needed. A target is not guaranteed.

Settings apply to new images. Apply them to update the current batch.

JPEG to WebP

Know what changes

Prepare photographs for a modern web workflow.

A smaller output depends on the original and quality setting. Converting an already compressed JPEG cannot recover missing detail, so work from your best available source.

Some older upload systems or desktop apps may require JPEG or PNG instead.

For a large photo, try a sensible maximum width before lowering quality aggressively.

A SIMPLE WORKFLOW

Get started with JPEG to WebP.

Bring your images.

Choose a file, a batch, or a folder. Your original files remain untouched.

Find your balance.

Set format, quality, width, and an optional target size. Compare your result.

Take the lighter route.

Download one image or the whole batch in a ZIP, with folder paths preserved.

THE DETAILS THAT MATTER

Know your result.

Are my images uploaded?

No image bytes are uploaded. Your browser fetches the image codecs, then processes your selected files locally.

Will the output always be smaller?

Savings vary. A same-format, same-dimension original is retained when it is smaller. Explicit conversions may increase file size, which the result clearly shows.

Can I keep working from the original?

Yes. PikoZip does not overwrite the source file on your device. Keep your original master and download the output as a separate file.

YOUR NEXT STEP

Keep the workflow moving.

LEARN SOMETHING USEFUL

Image format guide

Compare PNG, JPG, WebP and AVIF for photos, transparent graphics and website images. Choose a format using your actual output and compatibility needs.

Explore

LEARN SOMETHING USEFUL

Image compression explained

Understand lossy and lossless image compression, resizing and target file sizes. Learn why 100 KB is a goal and when keeping the original is the best result.

Explore YOUR WORKFLOW

Help center

Search common image optimization questions and troubleshoot your PikoZip results.

Explore

MAKE A LITTLE ROOM

Your next image, a little lighter.

Choose your format. Find your balance. Take it with you.

Start optimizing

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