Resize Image
Set width and height in pixels with optional aspect lock · processed in your browser, no upload
Drag a file here or click to browse
Drop an image or click to open · paste with Ctrl+V
Change an image's pixel dimensions. Set width and height with an optional aspect lock, processed right in your browser. Files are never sent to a server.
What you can do
- ✓Set width and height in pixels
- ✓Aspect lock to scale without distortion
- ✓Combine with rotate and flip transforms
- ✓Save as PNG, JPG, or WEBP
- ✓in-browser — no upload
How to use
- 1Add an image or paste with Ctrl+V
- 2Enter width and height, then apply resize
- 3Pick a format and quality, then download
Supported formats · PNG · JPG · WEBP · GIF · PSD · AI (input)
Change an image's pixel dimensions to exact values. With the aspect-ratio lock on, enter one side and the other follows so nothing gets squashed. Rotate or flip in the same pass and save as PNG, JPG, or WebP. Everything runs inside your browser.
How to use it
- 1Drop or select an image.
- 2In the resize tool, enter the width or height in pixels. With the ratio lock on, the other side adjusts automatically.
- 3Apply, choose an output format, and download.
When it comes in handy
Meeting a forum, shop, or application site's rule such as 'max 1024 px wide', shrinking a 4000-pixel camera original to an 800-pixel thumbnail, or unifying images to a blog's column width.
Fewer pixels also means a much smaller file, which makes resizing the most reliable way to get under a size limit.
Shrinking vs. enlarging
Shrinking is almost always safe. Enlarging invents pixels that aren't there, so anything beyond about 2× looks soft. If you need a bigger image for print or a large display, look for a file closer to the original.
Turning the ratio lock off and entering both sides stretches or squashes the image. For a fixed format such as 300×400, crop to that ratio first, then resize.
Choosing the format
JPG for photos, PNG for transparency or crisp text and lines, WebP for the web. JPG quality is applied at save time after resizing, so when both dimensions and file size must meet a limit, combine this with the target-size feature of Image Compress.
Frequently asked questions
Are files uploaded to a server?+
No. Processing happens inside your browser and images never leave your device.
Can I keep the aspect ratio?+
Yes. With the ratio lock on, changing one side adjusts the other.
How do I set the size?+
Enter width and height in pixels.
Does enlarging improve quality?+
No. Enlarging fills in pixels that don't exist and looks soft beyond about 2×. Shrinking is safe.
How do I hit a fixed format like 300×400?+
Crop to a 3:4 ratio first, then resize to 300×400.