# JPEG Compressor Shrink JPEG photos for websites, email and uploads with our JPEG Compressor. It re-encodes the image with trellis quantization and optimized Huffman tables at the quality you choose, writes a progressive or baseline file, applies the EXIF rotation and strips camera and location metadata. Ideal for bloggers, shop owners and developers who need smaller photos without installing software. ## Frequently asked questions ### How does the JPEG Compressor make files smaller? It decodes your image and encodes it again with the quality you set, using trellis quantization, overshoot deringing, an optimized quantization table and optimized Huffman coding. These encoder techniques save bytes at the same visual quality. Metadata such as EXIF camera data and GPS coordinates is removed as well, which often saves several kilobytes on its own. ### Which quality setting should I use? Quality runs from 1 to 100 and defaults to 80, which suits most photos on the web. Values between 70 and 85 usually look identical to the original at normal viewing size, while values below 50 show visible blocks and color smearing. Use 90 or more for images that will be edited or printed later. ### What does the progressive option do? A progressive JPEG stores the image in several passes, so browsers can show a blurry preview that sharpens while the file loads. Progressive files are usually a little smaller than baseline files for photos above a few hundred pixels. The option is on by default; turn it off if an old system or device only accepts baseline JPEG. ### Can I upload PNG, WebP or other formats? Yes, JPEG, PNG, GIF, WebP, TIFF and AVIF uploads are accepted, and the result is always a JPEG file with the .jpg extension. For an animated GIF or WebP only the first frame is used. Uploads in other formats are rejected with an error message. ### What happens to transparent areas? JPEG cannot store transparency, so transparent and semi-transparent pixels are placed on a white background before encoding. Logos and icons with transparency therefore get a white backdrop. If you need to keep transparency, use the PNG Compressor or the WebP Compressor instead. ### Is the photo orientation kept? Yes. Phones often store photos sideways and record the correct rotation in EXIF metadata. The compressor applies that rotation to the pixels before removing the metadata, so the result displays upright everywhere. ### Does the tool remove EXIF and GPS data? Yes, all metadata is removed, including camera model, capture time, GPS location and embedded thumbnails. Colors are converted to the sRGB color space, which every browser displays correctly. This protects your privacy when you publish photos and also reduces the file size. ### What are the size limits? Each upload can be up to 5 MB. Images wider or taller than 4000 pixels are scaled down to fit within 4000 by 4000 pixels while keeping their aspect ratio, and smaller images keep their exact dimensions. ### Why is the result sometimes larger than my original? If the original was already saved at a low quality, encoding it again at a higher quality setting can produce a larger file. Lower the quality value until the result is smaller, or keep the original if it is already well optimized. Each new JPEG encode also loses a little detail, so always compress from the best copy you have. ### Can I compress several JPEG files at once? You can add several files on the page, and each one is compressed separately with the same quality and progressive settings. Every file is processed on its own, so one failing image does not affect the others. Files are processed in memory for the request and are not stored. Your ad here? [Email us](mailto:hi@dennn.is?subject=Advertising%20on%20OneClick%20Pro) [Ad The agent-ready plugin suite for WordPress.](https://sleekwp.com/?ref=oneclickpro)