Compress JPEG photos to reduce file size without losing quality
JPEG is the most common photo format, and images straight from cameras or phones often weigh several megabytes. RoundCut compresses JPG files entirely in your browser, letting you balance file size and visual quality without uploading anything to a server.
Ideal for blog featured images, email attachments that hit size limits, website speed optimization, social media uploads, and freeing up phone or cloud storage.
How to use Compress JPG in 3 steps
Upload
Select or drag an image from your device
Adjust
Choose quality and target size settings
Download
Get your optimized, smaller image file
Best fits for this page
- Shrink blog and website images so pages load faster and rank higher.
- Fit large photo attachments under email size limits without visible quality loss.
- Batch-ready workflow that keeps your originals untouched while exporting lighter copies.
Compress JPG FAQ
How much can I compress my images?
Typically 50-80% reduction in file size while maintaining good visual quality. Results vary based on the original image and settings.
Is my image uploaded to a server?
No. All compression happens directly in your browser using JavaScript. Your images never leave your device.
What formats are supported?
We support JPEG, PNG, and WebP formats for both input and output. You can also convert between formats.