MarukitImage Resizer
Set an exact width and height in pixels, or choose a common size such as 1920 x 1080 or 1080 x 1080. Choose whether the image should fit inside the size, be cropped to fill it, or be stretched to it exactly.
Your images are processed inside your browser and are never uploaded to our servers.
About this tool
Change width and height, keep the aspect ratio or crop to fill.
How to use the Image Resizer
- Choose an image. Its current size is shown.
- Pick a preset or type a width and height. Keep 'Lock aspect ratio' on to change both together.
- Choose Fit, Crop to fill or Stretch.
- Press Resize, check the preview, then download.
Supported formats
- Input
- JPG, PNG, WebP (plus GIF, BMP and AVIF if your browser can open them)
- Output
- Same format as the input (GIF and BMP become PNG)
- Processing
- In your browser
Limitations
- Enlarging an image can't add detail; it will look softer.
- Maximum output size is 8000 x 8000 px (lower on some phones because of browser memory limits).
- Animated GIFs are resized as a single still frame.
Frequently asked questions
What does 'Crop to fill' do?
It scales the image so it covers the whole target size and trims the edges that stick out, keeping the centre. Nothing gets stretched.
Will resizing reduce file size?
Making an image smaller in pixels almost always reduces its file size. To reduce it further, use the Image Compressor afterwards.
Which presets are official social media sizes?
Presets are common sizes, not official requirements. Platforms change their recommendations, so check the platform's help pages if you need an exact size.