100% private  ·  No file limits  ·  Free forever

Compress JPEG
without the blur.

Reduce JPG file size by up to 80% using MozJPEG — the same encoder big image CDNs use. Output stays JPG.

Drop images here  or  browse files

Paste Ctrl+V to compress screenshots instantly

PNG JPEG WebP GIF BMP AVIF
No server uploads Unlimited files & sizes MozJPEG · oxipng · libwebp

# Compressors

Reduce JPG size and keep it a JPG

Cameras and phones save JPEGs at very high quality settings, which wastes space on detail your eyes can’t see. Re-encoding with MozJPEG — a modern, smarter JPEG encoder — removes that waste and keeps the file fully compatible, since it is still a normal .jpg.

That makes it the right choice when a platform only accepts JPG: email attachments, marketplaces, CMS uploads or job applications. Everything is processed locally in your browser.

  • Stays a JPG

    Output is standard JPEG that works in every app and upload form.

  • Exact size limits

    Need under 100 KB? Pick a Max size and quality is chosen automatically.

  • Private by design

    Photos are compressed on your device — ideal for personal and ID images.

How to compress a JPEG

  1. 1

    Drop your JPG/JPEG photos into the box above.

  2. 2

    They are compressed straight away at quality 70. Lower it for smaller files, or set “Max size” to hit an exact limit.

  3. 3

    Download individually or as a ZIP.

# FAQ

Compress JPEG: common questions

How much can I compress a JPEG?

Most phone and camera photos shrink 50–80% at quality 60–75 with no obvious difference on screen.

Does compressing a JPEG reduce resolution?

Not at a normal quality setting — the pixel dimensions stay the same. Only Max size mode resizes, and only large images that couldn’t otherwise fit the limit at a decent quality.

What is MozJPEG?

MozJPEG is an open-source JPEG encoder from Mozilla that produces smaller files than standard libjpeg at the same visual quality, while staying 100% compatible.

Should I convert to WebP instead?

For your own website, WebP is usually smaller still. When the destination requires JPG, compressing the JPEG is the right choice.