How to resize an image
- 1
Add your images
Drop in JPG, PNG, WebP or AVIF files — one or many.
- 2
Set the size
Resize by exact pixels (with aspect lock) or by percentage, and pick an output format.
- 3
Resize & download
Each image is resampled on your device. Download one or all.
Why resize images?
Right-sizing images makes pages load faster, fits upload limits, and gets dimensions exactly right for avatars, thumbnails, banners or print. Resizing to the size you actually display is one of the easiest ways to cut file weight without touching quality.
What is Image Resizing?
Image resizing is the process of changing the pixel dimensions of a digital graphic. Unlike competitors that upload your files to remote servers, our tool processes everything locally in your browser. This ensures complete privacy and significantly faster operation, allowing you to quickly prepare images for web use or crop your images without compromising on security or quality.
Questions
Will resizing blur my image?
No, our tool uses high-quality Lanczos resampling to ensure your images remain crisp. This is the same advanced algorithm used by professional photo editing software. By carefully calculating pixel values, it minimizes blur and artifacts during the downscaling process. You can expect sharp, professional results every time you resize.
Can I keep the aspect ratio?
Yes, keeping the original aspect ratio is fully supported and recommended. By checking the "Keep aspect ratio" option, you only need to enter either the width or the height. The tool will automatically calculate the other dimension to prevent stretching or distortion. If you enter both values, the image will be optimally scaled to fit within that exact bounding box.
Can I resize many images at once?
Absolutely, our bulk image resizer allows you to process dozens of images simultaneously. You can drag and drop an entire folder or select multiple files to apply your chosen dimensions globally. Each individual image will retain its unique aspect ratio while conforming to your target size constraints. This saves significant time compared to resizing files one by one.
Are my images uploaded?
No, all image resizing happens locally within your web browser using modern WebAssembly technology. Your personal photos or confidential documents are never uploaded to our servers or stored in any database. This local processing guarantees absolute privacy and security for your files. It also means the tool operates incredibly fast, without waiting for network transfers.
Is image resizer safe to use?
Yes. Because every resize happens on your own device, your images are never transmitted anywhere, stored on a server, or seen by anyone else. There’s no account to create and no file history kept — once you close the tab, nothing remains. This local-only design removes the main risks associated with uploading personal or sensitive photos to a third-party website.
Is image resizer free?
Yes, this image resizer is completely free with no sign-up, no watermark, and no limit on how many images you can resize. All features — exact pixel dimensions, aspect ratio lock, percentage scaling, and format conversion — are available without a paid tier. Since resizing runs on your device rather than our servers, there’s no usage cost that would require charging for it.
Can I resize an image to 100KB?
Yes. Enter a target file size and the tool will adjust quality and, if needed, dimensions to get as close as possible to 100KB while keeping the image looking sharp. This is especially useful for forms and portals that enforce a strict maximum upload size. If you need very fine control, you can also combine a manual pixel size with the quality slider to fine-tune the result yourself.