Change Image Resolution Online
Change the resolution of any image online. Adjust DPI, pixels per inch, or total pixel count. Free, instant.
📁
Drop image here or click to upload
Supports PNG, JPEG, WebP
Original
Resized
📐 Key Dimensions
Resolution Image Sizes
| Type | Dimensions | Ratio |
|---|---|---|
| Web / Screen | 72 PPI | Standard |
| HD Display | 1920 x 1080 | 1080p |
| 4K Display | 3840 x 2160 | 4K |
| Print Standard | 300 PPI | High quality |
About Resolution Image Sizes
Image resolution determines how sharp and detailed your image appears. Changing resolution (DPI/PPI) affects print quality without changing the pixel dimensions. You can also change the total pixel count to reduce file size for web use.
How to Resize
Step 1: Upload your image above
Step 2: Enter new dimensions or DPI value
Step 3: Preview to check quality
Step 4: Download the resolution-adjusted image
Tips
For sharp Retina display images, export at 2x your target display size. A 1000px-wide image will look crisp on Retina screens when exported at 2000px.
Frequently Asked Questions
What's the difference between DPI and PPI?
DPI (Dots Per Inch) is for printing; PPI (Pixels Per Inch) is for screens. They're often used interchangeably. Higher DPI/PPI = sharper image.
Can I increase resolution without losing quality?
Reducing resolution keeps quality intact. Increasing resolution (upscaling) often causes blurriness. For significant upscaling, use AI-powered tools.
What resolution should I use for web?
72-96 PPI is standard for web. For Retina/HiDPI displays, use 2x the dimensions (e.g., 2000px wide for a 1000px container).
Does changing resolution change file size?
Changing PPI metadata doesn't change file size. Changing actual pixel dimensions does change file size.