Compress JPG images with a dedicated JPG quality workflow and see the generated file size before download.
Upload up to 20 images · No signup · Browser processingReduce JPG file size while keeping JPG compatibility.
A practical JPG quality setting depends on the destination. A website thumbnail can often tolerate more compression than a portfolio image or a product close-up. Rather than choosing a number because it sounds safe, compare the generated file visually at normal viewing size and then zoom into detailed areas such as hair, text, fabric and high-contrast edges. If those regions begin to look blocky or smeared, increase quality slightly. The smallest acceptable delivery file is usually better than the absolute smallest possible file.
JPG compression is most useful when photographic images are visually acceptable but unnecessarily large for websites, email, forms or general sharing. JPG already uses lossy compression, so the objective is not to convert the file into something else; it is to create a second JPG with a more efficient quality setting. This page keeps the output locked to JPG so the controls match that specific task instead of asking you to choose an unrelated destination format.
The quality slider changes how aggressively the browser re-encodes the image. A higher setting retains more fine texture and normally creates a larger file. Lower settings can make photographs much smaller, but strong compression can introduce block patterns, ringing around edges and softness in detailed areas. The useful point is therefore not the lowest possible number; it is the smallest result that still looks appropriate for its destination.
The result size shown for every processed image is important because JPG compression depends heavily on content. A simple photograph with smooth backgrounds may shrink much more than an image containing noise, text or dense texture. Two files with identical pixel dimensions can therefore produce very different output sizes at the same quality setting.
Compress JPG is a practical choice for photographic website images, marketplace listings, email attachments and forms that explicitly accept JPG. If an upload portal has a strict limit such as 200 KB, the dedicated Compress to Target KB tool may be easier because it automatically searches quality levels. If your objective is modern web delivery rather than JPG compatibility, converting to WebP can also be worth comparing.
Keep the original file when quality matters. Repeatedly opening and recompressing an already compressed JPG can accumulate visual damage. It is better to create new delivery copies from the best source available. This tool is designed for that delivery-copy workflow: upload, compare size and quality, download the new JPG and preserve the master separately.
A practical JPG quality setting depends on the destination. A website thumbnail can often tolerate more compression than a portfolio image or a product close-up. Rather than choosing a number because it sounds safe, compare the generated file visually at normal viewing size and then zoom into detailed areas such as hair, text, fabric and high-contrast edges. If those regions begin to look blocky or smeared, increase quality slightly. The smallest acceptable delivery file is usually better than the absolute smallest possible file. Also remember that file-size savings vary by subject: smooth backgrounds and simple photographs often shrink more easily than noisy images or graphics containing text.