Fit or fill to 300×300 pixels — thumbnails and lightweight avatar images where a small file size matters.
JPG, PNG, WebP, GIF, BMP or AVIF
🔒 100% private — files are processed in your browser and never uploaded to any server.
Drop your image into the box above — the width (300) and height (300) are already filled in — choose Fit or Fill, and download. There is no manual cropping or guesswork.
300×300 has a 1:1 aspect ratio and works out to about 0.1 megapixels. It is a perfect square.
Making an image smaller stays sharp. Enlarging a small image beyond its original size will look softer, because no tool can add detail that was never captured — start from the largest original you have.
No — resizing happens entirely in your browser and the file never leaves your device.
300×300 pixels is the standard size for thumbnails and lightweight avatar images where a small file size matters. It has a 1:1 aspect ratio (a perfect square) and is roughly 0.1 megapixels — large enough to look crisp in that context without carrying unnecessary file size.
A smaller target size like this also naturally produces a smaller file — helpful if the platform has a small avatar upload limit.
In short: Fit scales your whole image to sit inside 300×300 without cropping, so nothing is cut off but the result may not fill the frame exactly. Fill scales and crops so the output is exactly 300×300 with no borders — the right choice when the platform demands that precise size.
Start from the highest-resolution original you have, since resizing down preserves quality far better than scaling a small image up. If the file also needs to be under a size limit after resizing, run it through the image compressor. Need a different target? The image resizer accepts any custom width and height, and the cropper handles aspect-ratio changes.
Every size below opens the same tool with the width and height already filled in, so you can go straight to the one your platform asks for instead of typing numbers and hoping you remembered them right.
Need something that is not listed? Type any width and height into the image resizer.