Resize Image
Change the width and height of one or many images: scale by percentage, set exact pixel dimensions, or fit to Instagram, Facebook, LinkedIn, X or YouTube sizes. Proportions are kept unless you choose otherwise.
Runs in your browser
How to use
- Drop your images.
- Choose percentage, exact pixels or a social media size.
- Click Resize and download.
How it works
Downscaling uses progressive halving followed by high-quality smoothing, which avoids the jagged, over-sharpened look of single-step resizing. Upscaling is allowed but can't add detail that isn't in the original.
The output keeps the original format (JPG, PNG or WebP); transparent areas are preserved in PNG and WebP. Social presets fit the image inside the target box without cropping — use Crop Image first if you need an exact shape.
Examples
- Profile picture
- Resize a 3024 × 4032 photo to 50% → 1512 × 2016.
- Blog header
- Set width 1200 px with aspect ratio kept → height calculated automatically.
- Passport-style photo
- 35 × 45 mm at 300 dpi is 413 × 531 px — crop to the right shape first, then resize to those pixel dimensions.
Common uses
- Preparing images for social media
- Meeting upload size requirements
- Creating thumbnails
- Reducing image size for websites
Privacy & security
This tool runs entirely in your browser. Your files and text are never uploaded to our servers — processing happens on your device and results are created locally. How each tool handles files
Frequently asked questions
Will resizing reduce quality?
Making images smaller keeps them sharp. Enlarging them makes them softer because new pixels are interpolated.
How do I resize without distortion?
Keep “Keep aspect ratio” checked and fill in only the width or the height.
What size should I use for the web?
1920 px wide covers full-width images on almost every screen; 1200 px is plenty for an article image and 400–600 px for a thumbnail. Going above the width the image will actually be displayed at only costs loading time.
Does resizing change the file size?
Yes, and it's the most effective way to reduce it: halving the width and the height leaves a quarter of the pixels. Use Compress Image afterwards if you also want to lower the quality.
My image looks squashed. What went wrong?
Both width and height were set to values that don't match the original proportions. Tick “Keep aspect ratio” and fill in only one of the two.
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