Image Resizer
Resize JPG, PNG and WebP images in your browser. Set exact dimensions, keep aspect ratio and batch process entire folders.
or click to browse JPG, PNG, WebP files (batch supported)
Resize Images for Web, Email and Social Media
Massive images slow down websites and create frustrating experiences for users on mobile connections. This image resizer helps you quickly adapt photos and graphics to the exact dimensions you need, without uploading them to any server. You can resize a single image or an entire selection in one pass, making it ideal for preparing blog post assets, thumbnails, banners or profile pictures.
After you choose your images, enter the target width and height in pixels. If you enable the maintain aspect ratio option, the tool automatically calculates the remaining dimension so your pictures do not appear stretched or squashed. The output format matches the original file, so JPGs stay JPGs and PNGs stay PNGs unless you later convert them with the dedicated converters.
Behind the scenes, the resizer uses the Canvas API to draw each image at the new resolution and export the result. The preview area displays a side‑by‑side comparison of the original and resized versions, along with file size information for each. Use this to verify that your resized images still look clean and sharp before downloading them.
Typical resizing scenarios
- Creating consistent blog post thumbnails.
- Preparing cover images and banners for social platforms.
- Standardizing product photo dimensions for e‑commerce listings.
- Reducing photo resolution before emailing large attachments.
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Image resizer FAQ
What happens if I do not enter both width and height?
If maintain aspect ratio is enabled and you enter only one dimension, the other can be calculated automatically based on the original image.
Can I upscale small images?
Yes, but enlarging images will not add extra detail and may introduce blur. Whenever possible, start from a high‑resolution source.
Does this tool support high‑DPI images?
Yes. The resizer works with standard and high‑DPI images. You can export at double dimensions for retina displays.
Is there a maximum resolution I can use?
The maximum size depends on your device and browser limits. Extremely large resolutions may not fit in memory.
Can I change the output format while resizing?
This tool keeps the original format. To change formats, use one of the dedicated converter tools after resizing.