Compress JPEG images online, free

LightPIX is a free online JPEG compressor that reduces JPG file size by up to 80% with no visible quality loss. JPEG is the go-to format for photographs and detailed images, and it responds extremely well to smart compression — LightPIX uses the mozjpeg encoder to strip wasted bytes while keeping photos looking sharp.

Compress up to 20 JPGs at once (16 MB each), adjust the quality slider to taste, and download them one by one or as a single ZIP. LightPIX also removes bulky EXIF/GPS metadata for smaller, more private files. Everything is processed over HTTPS and deleted right after compression — your photos are never stored.

Running a website on WordPress? The free LightPIX WordPress plugin compresses every JPEG automatically on upload.

How to compress JPEG images in 3 steps

  1. 1

    Add your images

    Drag & drop, click to browse, or paste a screenshot. PNG, JPEG and WebP are supported — up to 16 MB each and up to 20 at once.

  2. 2

    Adjust the quality

    Move the quality slider if you want a smaller file or higher quality. The default already balances size and clarity.

  3. 3

    Compress & download

    Click Compress all, then download each image or the whole batch as a single ZIP.

Frequently asked questions

Does compressing a JPEG lower its quality?

LightPIX uses mozjpeg to cut file size with no visible loss at the default quality. You can move the slider higher for maximum fidelity or lower for the smallest file.

Is EXIF/location data removed?

Yes — LightPIX strips EXIF, GPS and ICC metadata, which shrinks the file and protects your privacy.

Is LightPIX free?

Yes — LightPIX is completely free, with no signup, no watermark and no monthly limits.

Are my images private?

Yes. Images are sent over HTTPS, compressed, and deleted immediately after — nothing is stored on our servers.

How much smaller will my images get?

Typically up to 80% smaller, depending on the image, with no visible loss in quality.

Can I compress multiple images at once?

Yes — compress up to 20 images in one batch and download them individually or as a single ZIP.

Do I need to install anything?

No — it runs in your browser. For automatic compression on your website, there is also a free LightPIX WordPress plugin.

Does it work on mobile?

Yes — LightPIX works in any modern browser on both desktop and mobile.

More compression tools