How to Use the Image Resizer
- Drag and drop an image into the upload zone, or click Choose File to browse your device. PNG, JPG, WEBP, GIF, SVG, BMP and ICO are all supported.
- Pick an output format in the Format Output panel. For JPG or WEBP, use the quality slider to balance sharpness against file size.
- Either type an exact Width × Height with the lock toggle to keep proportions, or choose a Social Presets option to auto-fill the correct dimensions for a platform.
- Choose a resize mode: Stretch forces the exact size, Fit scales the whole image in with padding, and Cover scales up and crops the center to fill the frame edge-to-edge.
- Check the crop overlay and live result preview, then click Convert & Download to save the finished file — everything happens locally in your browser.
Supported Image Formats Explained
Input Formats
- PNG
- Lossless, supports transparency. Best for graphics, logos, and screenshots.
- JPG / JPEG
- Lossy compression, no transparency. Best for photographs.
- WEBP
- Modern format with strong compression; supports transparency and animation.
- GIF
- Supports simple animation and transparency; processing captures a single static frame.
- SVG
- Vector format, rasterized to pixels when loaded onto the canvas.
- BMP / ICO
- Uncompressed bitmap and icon formats, read directly by the browser.
Output Formats
- JPG
- Smallest files for photos. No transparency — a white background is added automatically.
- PNG
- Lossless with full transparency support. Larger file sizes than JPG or WEBP.
- WEBP
- Great balance of small size and quality, with transparency support.
- BMP
- Uncompressed, fully compatible bitmap — largest file size, no quality loss.
Social Media Dimensions Reference
Use the preset dropdowns in the tool, or reference the master table below to manually target the correct dimensions.
| Platform | Placement | Dimensions (px) |
|---|
Frequently Asked Questions
Does this tool upload my images to a server?
No. All image resizing, cropping, and formatting happens entirely within your web browser. Your files never leave your device, ensuring complete privacy and faster processing.
Why did my PNG's transparent background turn white?
If you convert an image with a transparent background to the JPG format, the transparent areas will automatically be filled with white because JPGs do not support transparency. To keep the background transparent, select PNG or WEBP as your output format.
What is the difference between 'Fit' and 'Cover' resize modes?
Fit (Pad) scales your entire image to fit inside the target dimensions, adding padding (transparent or white, depending on the format) to any extra space. Cover (Crop) scales your image up so it completely fills the target dimensions, cutting off the overlapping edges to guarantee a perfect fit without distortion.