Image Resizer
Resize images to any dimension
100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.
720p selected — upload an image to apply it.
Drag & drop files here
or browse to upload
Supports PNG, JPG, WebP up to 20MB
Processed in your browser - your file never leaves this device.
About this tool
1280 by 720 is HD - small enough to email, quick to load on mobile data, and still sharp on a laptop or phone screen. It is the size to choose when a 1080p image is overkill: blog headers, chat attachments, lightweight web banners and video previews on slow connections. Cropping here gives that 16:9 frame at half the pixels of 1080p, which is why it remains the go-to size for email attachments and slow connections.
How to use this tool
- Add the imageDrop in a photo or banner; the 720p preset is applied straight away.
- Frame itDrag the image so the subject sits well inside the 1280 x 720 crop.
- Export a light fileSave as JPG or WebP for the smallest file that still looks sharp on a laptop or phone.
When smaller is better
A 720p JPG is often a quarter of the size of the same image at 1080p, which matters for email attachment limits, messaging apps on mobile data and pages that load many images. For anything viewed on a phone, the difference in sharpness is rarely visible; for a projector or TV it is.
Key features
- Small, fast-loading files that still look sharp on most screens.
- Good for blog headers, chat attachments and lightweight banners.
Common uses
- Blog post header images.
- Images sent over email or chat.
- Lightweight web banners.
Tips for better results
- Compress after resizing for the smallest file.
- Use 720p for mobile-first pages.
- Keep a full-size original.
Mistakes to avoid
- Using 720p for print.
- Projecting a 720p image on a large screen.
Frequently asked questions
1280 x 720 pixels, a 16:9 frame of about 0.9 megapixels.
For most inline images, yes; full-width hero images often use larger sizes for big screens.
It has less than half the pixels, and files are typically much smaller.
Half the pixels of 1080p and roughly a quarter of the file size, which is why it survives as the default for email attachments and slow connections.
Drop it onto this page. The 720p HD preset is already selected, so it resizes straight to 1280 x 720 pixels and shows the crop before you download.