Quick guide
Resize Images Online — One Image, Multiple Sizes or One Size for Many Images
Set pixel dimensions for multiple images, or turn one image into a set of social-media sizes. Fit without cropping or fill the frame, then export JPG, PNG or WebP.
What this tool does
- Resize multiple images to one size, or create up to six ready-to-use sizes from one image.
- Includes 1:1 and 4:5 posts, 9:16 stories, link-share images, Facebook covers and video thumbnails.
- Fit the whole image without cropping, or fill the frame and crop from the center.
- Export JPG, PNG or WebP up to 8,000 × 8,000 pixels without uploading image content to the VPS.
How to use Resize Image
- 1Choose images from your device, then choose one size for many images or multiple sizes for one image.
- 2Set custom dimensions or platform presets, fit mode, format and quality.
- 3Start processing, check the real dimensions and output, then download files individually or as a ZIP.
Frequently asked questions
How does one-image multi-size mode work?
The tool uses only the first queued image and creates up to six selected sizes sequentially to reduce memory use. Download them individually or as a ZIP.
What is the difference between proportional, contain, and cover?
Proportional calculates the other side from the dimension you edited last. Contain shows the whole image and adds padding, while cover fills the target size and crops from the center.
How to keep the picture from distorting?
Choose proportional, contain, or cover to preserve the original aspect ratio automatically. Use stretch only when changing the image shape is acceptable.
Are pixel dimensions and file size in KB the same?
No. Width and height define image dimensions, while KB depends on the format, quality, and image detail. If you must meet a KB limit, resize first and then use the image compressor.
Does enlarging the image make it clearer?
Increasing the number of pixels cannot create original details that do not exist. Images may appear soft or cracked at extreme magnification.
Is the image sent to a server for processing?
No. Images are opened, resized and recreated one output at a time in your browser, so the VPS neither processes nor stores image content.