Image resizer
Resize any image to exact pixel dimensions. Lock the aspect ratio, choose crop or letterbox, and export as JPG, PNG or WebP. It all happens in your browser, so your files never leave your device.
Drop an image, or click to browse
Preloaded to 1920 by 1080 for a 1920 by 1080 canvas. Everything runs in your browser.
How to resize an image
- Drop an image into the box, or click to browse.
- Type the width or height you need; the other solves if the lock is on.
- Pick crop to fill or fit inside if the shape differs from your source.
- Choose a format and download the resized image.
Resize to a specific platform size
If you are targeting a network, use the dedicated page instead. Each one loads the resizer already set to the correct dimensions and shows the safe zone.
YouTube thumbnail1280x720Instagram post1080x1350Instagram story1080x1920LinkedIn banner1584x396Facebook cover851x315
Frequently asked questions
How do I resize an image without losing quality?
Downscaling to smaller dimensions keeps quality well; the resizer uses high-quality smoothing. Upscaling past the original size always softens an image, because there is no extra detail to invent.
Are my images uploaded anywhere?
No. The resizer uses your browser canvas, so the image is processed on your device and never sent to a server.
What formats can I export?
JPG for photos, PNG for graphics with sharp edges or transparency, and WebP for the smallest file at good quality.
How do I keep the aspect ratio?
Leave the lock aspect ratio box ticked and edit either width or height; the other value updates automatically to keep the shape.
Need to shrink the file weight instead of the dimensions? Use the reduce image size tool.