Compress JPG images with adjustable quality from 10% to 100% and optional width resizing. Compare the resulting file size before downloading your image.
JPG — Processed locally in your browser
Drop an image here or use the upload button.
A photo can look perfectly fine on your computer and still be larger than it needs to be for the place where you plan to use it. On a website with several product photos, portfolio images, or article illustrations, unnecessary file weight can add up. The JPG Compressor gives you two practical controls: adjust the output quality and, when appropriate, change the image width before saving the result.
The useful part is being able to judge the result rather than choosing a file size blindly. You can experiment with the settings, review the preview, and compare the new file size with the original before downloading.
The quality slider ranges from 10% to 100%, with a default value of 80%. JPG uses lossy compression, so changing the quality setting can affect both file size and visible detail. A lower value will often produce a smaller file, but aggressive compression may introduce visible artifacts around edges, textures, or areas with subtle color changes.
There is no single setting that suits every photograph. A large photo used as a background may tolerate more compression than an image containing small lettering, product details, or fine patterns. Move the slider in small steps and inspect the preview at the size where the image will appear.
Quality is only one part of image optimization. If a page displays a photograph at a much smaller width than its original dimensions, resizing can remove unnecessary pixels from the delivered image. The width field accepts values from 50 to 8,000 pixels; entering 0 keeps the original width.
The tool preserves the image's aspect ratio when it changes dimensions. It can scale an image up as well as down, but increasing its width does not create new photographic detail and may increase the output file size. For website images, choose dimensions that match the intended display area instead of enlarging the source unnecessarily.
If re-encoding does not make an unchanged-size image smaller, the tool can keep the original file rather than replace it with a larger version. This is useful because compression is not guaranteed to reduce every file. An image that has already been optimized may have little room for further savings at the selected settings.
Do not judge the result by file size alone. Look at areas with fine lines, small text, faces, or gradual color transitions. These are places where compression changes may be easier to notice. If the image is part of a product page or a portfolio, preserving visual clarity may be more important than achieving the smallest possible file.
For a broader range of formats, try the Image Compressor. If the main issue is oversized dimensions, use the Image Resizer. To switch from JPG to another supported image format, visit the Image Format Converter.
Does setting the quality to 100% preserve the original file exactly?
Not necessarily. The tool re-encodes the image as JPEG, so the resulting file should not be assumed to be byte-for-byte identical to the source, even at the highest quality setting.
Should I always reduce the quality as much as possible?
No. The lowest setting may produce a much smaller file but can also make image details visibly worse. Choose a value based on how the image will be viewed and how much detail matters.
Why did my compressed image not become smaller?
The original may already be well compressed, or the selected settings may not produce a smaller result. Try adjusting the quality or resizing the image to a more suitable width, then compare the preview and file size again.