Compress JPEG, PNG, or WebP images to reduce size without losing quality.
That depends on the photo. A picture straight from a phone camera is saved at very high quality, so at 70 to 80% it will often shrink to half its size or less with no difference you'd notice on screen. Images that were already compressed, like ones saved from a website or a messaging app, have less to give.
This tool keeps the width and height the same. If you need a much smaller file, reducing the dimensions makes a far bigger difference; the Image Resizer & Compressor does both in one step.
The size shown before you download is the size of the file you get.
JPG compression is what makes photos small, so the output is always JPG, whatever you upload. That suits photos well. It's not ideal for images with transparent backgrounds: JPG can't store transparency, so those areas are filled with white. Keep logos and icons as PNG.
The quality number isn't a percentage of the original; it's how hard the JPG encoder simplifies detail. Between 70 and 85, most people can't tell the result from the original. Below about 50 you'll start to see blocky patches in smooth areas such as sky and skin, and halos around text. Zoom into the preview before you download.
Not with this tool, which always saves a JPG. For photos, converting to JPG is usually what makes a PNG so much smaller.
Lower the quality step by step and watch the size. If it's still too big at around 50%, the image simply has too many pixels; reduce its width and height with the Image Resizer & Compressor, which does both at once.
Yes. The image is redrawn on a canvas before it's saved, so the new JPG doesn't carry over the original's EXIF metadata, including GPS location.
No. Compression runs in your browser and the photo never leaves your device.
OneClickly is a set of 119 free tools for PDFs, images, text, everyday math and code. They run in your browser, so the files and text you work with stay on your device.