Resize Images to 300×300
Resize your images to thumbnail size (300×300 pixels). Ideal for small preview images, avatar placeholders, and gallery grids.
Image resizer
Drag and drop files or folders here, or
All image formats — up to 50MB each, or 50 from a folder
Ctrl+Z undo · Ctrl+Y redo
Leave one blank to auto-calculate from aspect ratio.
Preserve camera info, GPS, and other metadata
Keyboard Shortcuts
General
When to Use Thumbnail
Thumbnails are used in image galleries, product listings, user avatars, and anywhere a small preview image is needed. 300×300 works for most grid layouts.
Tips for Thumbnail Images
For thumbnails, WEBP at quality 75 gives tiny files (5–20 KB) with good quality. Strip metadata to save every byte.
Frequently Asked Questions
Will the image be cropped to a square?
No. The image is scaled to fit within 300×300 while preserving aspect ratio. A 16:9 image becomes 300×169. Use the Crop tool first for exact square thumbnails.
Can I make smaller thumbnails?
Yes. Use the Pixels mode on the resize tool to set any custom size, like 150×150 or 100×100.