JPEG Compress

Reduce file size while keeping visual quality

Drop your JPEG here

or

JPEG only · Processed in your browser

🔒 Files never leave your device

How to Compress a JPEG

  1. Select or drop your image. Click "Select Image" or drag a JPEG file onto the drop zone above.
  2. Adjust the quality. Use the quality slider to balance file size and visual sharpness. 80% is a good default for most photos.
  3. Preview the result. Switch to Compare mode to slide between the original and compressed versions side by side.
  4. Download. Click Download to save the optimized JPEG to your device.

What This Tool Does

This free JPEG compressor reduces the file size of your photos so they load faster on websites, attach more easily to emails, and take up less storage — without a noticeable drop in quality. It's ideal for shrinking large camera or smartphone photos before uploading them to a blog, online store, or social media.

Everything runs entirely inside your browser. Your images are never uploaded to a server, so your files stay private and the compression happens instantly, even offline.

About the JPEG Format

JPEG (also written JPG) is the most widely used image format for photographs. It uses lossy compression, which means it discards small visual details the human eye is unlikely to notice in order to dramatically shrink file size. This is why a JPEG can be a fraction of the size of an equivalent PNG.

Because the compression is lossy, lowering the quality value reduces file size but can introduce visible artifacts if pushed too far. For photos, a quality setting between 70% and 85% usually offers the best balance. For images with sharp edges, text, or transparency, consider PNG or WebP instead.

Frequently Asked Questions

Does compressing a JPEG reduce its quality?

Yes, slightly — JPEG uses lossy compression. However, at quality settings of 70–85% the difference is usually invisible to the eye while the file size drops significantly.

Are my images uploaded to a server?

No. All compression happens locally in your browser. Your files never leave your device, which keeps them completely private.

Is there a file size or number limit?

There's no fixed limit. Because processing runs on your own device, very large files depend on your device's memory, but typical photos compress instantly.

What's the difference between JPEG and PNG compression?

JPEG is lossy and best for photographs. PNG is lossless and best for graphics, logos, or images with transparency. For photos, JPEG gives much smaller files.