Compress JPEG files on Windows or Mac
JPEG Compressor that makes it super-easy to reduce JPEG file size — it’s the only JPEG compressor software you’ll ever need.
- Instant download — no email required
- Over 3 million users worldwide
- 14-day free trial
Also available JPEG Compressor Server
Trusted by 3+ million happy customers
“It is my go-to software for reducing the size of photo files. I have a full-frame, 46 Megapixel digital camera and use NXPowerLite to reduce the size of my post-processed photographs. The average file reduction is typically 75-85% with absolutely no loss in quality. I LOVE THIS PRODUCT!!”
— Charles Greear
Software features
Offline JPEG compressor
Compress JPEG images on your local Windows or Mac computer, without the need for an Internet connection. It's 100% offline software.
Compress multiple JPEG
Our batch JPEG compressor can reduce the size of up to 10,000 JPEG images at a time.
Compress Images for Email
Sending files as attachments? Automatically reduce JPEG size with our Microsoft Outlook integration. No more bounce back or exceeding mailbox limits.
Optional Zip Compression
See your JPEG files reduced by up to 95% before selecting additional zip compression from the results screen to zip files together.
Maintain Visual Quality
NXPowerLite decodes & re-encodes JPEGs more efficiently, allowing it to compress photos without altering resolution.
Windows or Mac
Shrink JPEGs straight from Explorer or Finder for maximum ease. Simply right-click a file and choose from the optimization options.
This straightforward and easy to use application certainly makes it easy to optimise images, while maintaining clarity. I've found it perfect to quickly prepare images for the web, saving time without the need to go into a heavy duty application such as Photoshop.
— Quaetapo
How to compress JPG/JPEG files in four simple steps
Steps
Install the NXPowerLite Desktop JPEG compressor software.
Drag your JPEG file onto the NXPowerLite icon.
Hit the 'Optimize' button to reduce file size.
NXPowerLite will compress and deliver you a smaller image.
How the JPEG compressor works
Most JPEG images are produced by digital cameras, which are optimized to preserve as much information as possible in order to allow the image to be edited and post-processed. Most of this information is not visually detectable and unnecessarily increases the size of the file. NXPowerLite uses a number of techniques to reduce the amount of data in JPEG files, resulting in impressive size reduction without discernible loss of quality.
NXPowerLite can reduce the file size of your JPEG photos by more than 50% without resizing them.
It decodes and re-encode JPEGs using more efficient settings. This can substantially reduce the file size without reducing the image resolution and without changing the perceptual quality of the image.
This lossy compression approach does create slight pixel differences in the before and after file. If you analyze the uncompressed and compressed images with a computer using a threshold algorithm, you can see minor differences — but by eye, they look identical.
Printing optimized images
Image resolution is the main factor when considering how images will print - if the resolution is too low then it negatively affects the print quality. By default NXPowerLite doesn't change the image resolution, so you can be comfortable that images will still look great when printed.
Image comparison
With this image you can see that the resolution hasn’t changed but after compression with NXPowerLite it is less than half the file size. Click links to download the example files.
How it works
Where appropriate, NXPowerLite applies additional JPEG compression to images. The default setting (8) will result in an undetectable loss of quality, even at 100% zoom or when printed.
NXPowerLite uses a number of additional techniques to reduce the amount of data in JPEG files, resulting in impressive size reduction without any discernible loss of quality. These techniques include optimized Huffman coding and Chroma subsampling.
Note: By default JPEG images are not resized as part of the optimization process and EXIF metadata is preserved.