Compress JPEG
Shrink JPG files by up to 80% while keeping them sharp. Drop images below — no sign-up, processed privately, deleted in 24 hours.
- ✓Batch up to 25 MB per file, free
- ✓Adjustable quality & resize
- ✓Also export WebP or AVIF in one pass
Drag & drop images here
JPG, PNG, WebP, AVIF up to 25 MB
Up to 80% smaller
Our encoder finds the smallest JPEG that still looks identical to the original.
Private by default
Encrypted uploads, auto-deleted within 24 hours. Nothing is kept or shared.
Full control
Tune quality, strip metadata, and resize before you download.
More free tools
All free, all private. Pick the right one for the job.
How to compress a JPEG online
JPEG is the go-to format for photographs, but camera and export defaults leave a lot of wasted bytes on the table. OctoSqueeze re-encodes each JPG with a smarter quality curve, removing data your eyes can't see while keeping the detail that matters — typically cutting file size by 60–80%.
Why smaller JPEGs matter
Lighter images load faster, improve your Core Web Vitals, and save bandwidth for you and your visitors. On mobile especially, a 2 MB hero image can be the difference between a bounce and a conversion.
Lossy vs. lossless
For JPEG we use perceptual lossy compression — the smallest file that stays visually identical. Need pixel-perfect output for graphics and screenshots? Switch to PNG compression instead.
Do it at scale
Compressing one image is easy. Compressing thousands is what our REST API is for — one call returns an optimized file (or a CDN URL) in any format you need.
Frequently asked questions
Everything you need to know about compressing JPEG images.
Contact supportJPEG compression reduces file size by removing image data that's less visible to the human eye. Our smart algorithm finds the optimal balance between file size and visual quality, typically achieving 60-80% reduction without noticeable quality loss.
With our balanced mode, the quality difference is imperceptible to most viewers. Our algorithm is optimized to preserve important details while removing only the data that won't be noticed. For critical images, use Quality mode for minimal compression.
Yes! You can compress JPEG images for free with our web tool. Free users get 500 images per month. For higher volumes or API access, check our pricing plans.
Yes. OctoSqueeze automatically generates WebP and AVIF versions of your compressed images. These modern formats can achieve even smaller file sizes while maintaining quality. Download all formats from a single upload.