Compress Image

Shrink JPG, PNG, and WebP without leaving your browser

Use Compress Image free in your browser. Free online image compressor. Reduce JPG, PNG, or WebP file size with a quality slider, see before/after sizes, and download one file or a ZIP — no signup, files stay on your device.

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What you can do with Compress Image

Compress Image on OnliKit is a free browser tool for everyday work — shrink jpg, png, and webp without leaving your browser. Use it when you need a quick result without installing software or creating an account.

Compress JPG, PNG, and WebP images in your browser.
Adjust quality and compare original vs compressed size instantly.
Batch compress multiple images and download a ZIP.
No upload to a server — processing stays on your device.

Why use Compress Image?

Use this compressor when email portals or forms reject oversized photos. Lower quality until the size fits, then download.

Everything runs locally so private photos never leave your computer.

How to use Compress Image

01Drop one or more images into the workspace.
02Set output format and quality (live preview updates).
03Download the compressed file, or ZIP for batches.

Frequently asked questions

Is image compression free?

Yes. Compress images on OnliKit without an account.

Do you upload my photos?

No. Compression runs entirely in your browser.

Related tools

After you finish with Compress Image, try these related OnliKit tools — or browse all tools.

Also see more image tools.