Compress JPEG

Free · In-Browser · No Upload

Compress JPEG Online

Reduce JPEG file size to any target you choose — private, free and instant.

Loading tool…

100% private

Everything runs locally with HTML5 Canvas. Your image is never sent to a server.

Fast & precise

Instant, accurate output tuned to the exact spec — no guessing, no queues.

No watermark

Free forever, no sign-up, and never a watermark on your finished file.

How it works

Four steps, a few seconds, zero uploads.

Upload

Drop your image or browse. iPhone HEIC works too.

Adjust

The tool applies the exact spec — tweak if you like.

Preview

See the result and file size before you commit.

Download

Save your optimised, ready-to-use image.

Smarter JPEG compression

JPEG already compresses well, but the default quality from cameras is often much higher than the web needs. Set your target size in KB and the tool re-encodes the JPEG at the best matching quality, typically cutting the file by 60–90% with no visible difference on screen.

Related tools

Jump to another size or format.

Frequently asked questions

How do I reduce a JPEG’s file size?

Upload the .jpg, set a target size in KB, and download the compressed result. The tool picks the highest quality that fits your target.

Is there a file limit or watermark?

No watermark and no sign-up. Files up to 40MB are supported.

Are my JPEGs uploaded to a server?

No. All JPEG compression runs in your browser.

All image tools

Browse the full toolkit — one focused tool per page.

Your images stay yours

Every tool here runs in your browser. Nothing is uploaded, stored or watermarked — ever.

Is this safe? See how