Make your images smaller without losing much quality. Choose a photo, set the quality, and download the compressed image. Everything happens in your browser — your image is never uploaded anywhere.
Your image is processed on your own device and never leaves it. PNG images are converted to JPG, so transparency is not kept.
1. Choose a JPG or PNG image. 2. Set the quality with the slider (70 percent is a good balance). 3. Click Compress Image, then download the smaller file.
Photos from phones and cameras are often several megabytes large, which makes them slow to upload, slow to load on a website, and hard to send by email or message. An image compressor makes the file smaller while keeping the picture looking almost the same. This free image compressor works completely in your browser: choose a JPG or PNG image, set the quality, and download the compressed version. Your image is never uploaded to any server, so it stays private.
Compression works by throwing away a little of the detail the human eye barely notices, especially in smooth areas of a photo. At 70 percent quality, most photos look the same as the original but take up far less space. This tool also shrinks very large photos to a maximum of 1920 pixels on the longest side, which is more than enough for websites and social media. It is useful for bloggers, shop owners, students and anyone who needs to send or publish photos quickly.
Take a phone photo of 2.4 MB (about 4000 by 3000 pixels). Compress it at 70 percent quality with this tool, and it often shrinks to around 800 KB, which is about one-third of the original size, while still looking sharp on a screen. At 50 percent quality the same photo may shrink to around 500 KB, with only a small loss of detail that most people will not notice. A PNG screenshot of 1.8 MB may shrink to around 600 KB when converted to JPG at 70 percent quality. The exact result depends on the photo: busy, detailed photos compress less than simple ones.
This tool uses the JPEG format, which is made for photos. JPEG compression removes fine detail that the eye does not easily see, and the quality slider controls how much is removed: 100 percent keeps almost everything, 70 percent is a good balance, and below 50 percent the picture starts to look blocky. The tool draws your photo on a canvas in your browser, resizes it if it is wider than 1920 pixels, and saves it as a JPG. PNG images are converted to JPG, so any transparent areas become white. Your original file is never changed; the tool only creates a new, smaller copy for you to download.
Use 70 percent for websites. It gives the best balance of small size and good looks for most photos. Use 80 to 90 percent for printing. Printed photos need more detail, so keep the quality higher. Do not compress the same photo twice. Compressing an already compressed photo loses more quality each time, so always start from the original. Keep the original safe. Save the original photo separately, because compression cannot be undone. Check the preview before you download. Zoom into the preview and look at faces and text; if they look blurry, raise the quality and try again.
Take a PNG screenshot of 1.8 MB, perhaps a picture of a chart or a document. Compress it at 70 percent quality with this tool, and it often shrinks to around 600 KB, which is about one-third of the original size. The text in the screenshot stays readable, and the file is much easier to send by email or upload to a website. Note that the result is saved as a JPG, so any transparent parts of the PNG become white. For a photo, the same 70 percent quality usually keeps the picture looking sharp while cutting the size by half or more.
Compressing a photo that is already tiny. A photo that is already heavily compressed may not shrink further, and can even grow slightly. Using very low quality for faces. Below 50 percent quality, faces and text start to look blocky, so keep the quality higher for photos of people. Deleting the original too soon. Compression cannot be undone, so keep the original file safe until you are happy with the result. Expecting transparency to survive. The result is always a JPG, so transparent areas become white. Compressing the same photo again and again. Every round of compression loses more detail, so always start from the original file.
Pro Tip: For a website, compress every photo before you upload it. Smaller photos make your pages load faster, which visitors and Google both like.
Note: Very large photos are first resized to a maximum of 1920 pixels on the longest side, which is more than enough for websites and social media.
Is my photo uploaded anywhere? No. The whole compression happens in your browser on your own device. Your photo never leaves your computer or phone.
What image formats can I compress? You can upload JPG and PNG images. The compressed result is always saved as a JPG file.
What happens to PNG transparency? PNG images are converted to JPG, which does not support transparency, so transparent areas become white. Use this tool for photos, not for logos that need a transparent background.
What quality should I choose? 70 percent is a good balance for websites and sharing. Use 80 to 90 percent for printing or for photos where fine detail matters, and 50 percent when size matters most.
Why is my compressed image sometimes bigger? A photo that is already heavily compressed, or a very small image, may not shrink further. Try a lower quality, or start from the original uncompressed photo.
Can I compress many images at once? This tool compresses one image at a time. For many images, compress them one by one and keep the originals safe in a folder.
What is the best quality setting for a website photo? Seventy percent is a good balance for most photos: small file, sharp picture. Use 80 to 90 percent for photos where fine detail matters.
Can I compress a photo on my phone? Yes. This tool works in your phone's browser. Choose the photo from your gallery, compress it and download the smaller copy.