Resize Your Image
Resizing changes the pixel dimensions of a picture: its width and height. A 4000 × 3000 photo resized to 1200 × 900 has fewer pixels, so it loads faster and fits on a page, an email or a profile slot. Enter exact pixels or a percentage, or start from a preset.
Keep Maintain aspect ratio on to avoid stretched or squashed results. Turning it off lets you set width and height independently, which distorts the picture unless the proportions already match.
Crop and Rotate Your Image
Cropping removes the parts of an image outside a selected area, while resizing scales the whole image. If you need a specific shape, crop first and then resize. Rotate in 90° steps to fix a sideways picture. Undo, redo and reset are available, and your original file is never changed.
Optional Image Compression
Resizing and compression are different. Resizing changes dimensions; compression changes how much detail is stored for each pixel. Compression is off by default. When you turn it on, a quality slider applies to JPG, WebP and AVIF. PNG is lossless, so the slider does not shrink PNG files. Results are measured on the real output: if the new file is larger than the original, we tell you.
How to Resize an Image
- Choose or drop an image.
- Crop or rotate it if needed.
- Set the width and height, or pick a percentage or preset.
- Optionally open Advanced Options and enable compression.
- Pick an output format and press the main button.
- Download the result.
Supported Image Formats
JPG, JPEG, PNG, WebP, AVIF, SVG and HEIC can be selected. What works depends on your browser, because decoding and encoding use built-in browser features.
- JPG suits photographs and small files, but has no transparency.
- PNG suits screenshots, logos and graphics needing sharp edges or transparency.
- WebP and AVIF usually give smaller files than JPG at similar quality, but older browsers may not read or write them.
- SVG files are previewed safely as images. Resizing, cropping or rotating produces a raster image (PNG by default).
- HEIC works only where your browser can decode it. Otherwise you will see a message; no converter is bundled.
Frequently Asked Questions
How do I resize an image online?
Upload an image, enter a new width and height, choose a format and press Resize Image, then download the result.
Can I resize JPG and JPEG images?
Yes. JPG and JPEG are the same format and are supported in every modern browser.
Can I resize PNG images?
Yes. Transparency is kept when the output is PNG, WebP or AVIF.
Can I resize WebP images?
Yes, in browsers that can read WebP, which is all current major browsers.
Can I crop an image before resizing it?
Yes. Use Crop to select an area, choose a ratio if you like, and apply it. The size fields then match the cropped area.
Can I rotate an image?
Yes, left or right in 90° steps. Rotation works together with crop and resize.
Does the tool maintain the original aspect ratio?
Yes, by default. You can switch it off to set width and height independently, or when a preset has a different ratio.
Can I resize an image by percentage?
Yes. Switch to Percentage and use a preset (25% to 200%) or type your own value.
Is image compression enabled by default?
No. Compression is off until you enable it in Advanced Options. With it off, lossy formats are still saved at high quality (95%), since encoding needs a quality setting.
Are my images uploaded to a server?
No. Files are read and processed in your browser and are never sent to a server by this page.
Can I use the tool on mobile?
Yes. The layout and crop handles are designed for touch screens.
Why can't my browser process a HEIC image?
HEIC decoding depends on the browser and operating system, and many browsers lack it. Convert the file to JPG or PNG, or try a browser that supports it.
Does resizing reduce image quality?
Making an image smaller discards pixels, but it usually still looks good at the new size. Enlarging cannot add real detail, so it can look soft.
Can I download the resized image in another format?
Yes. Choose JPG, PNG, WebP or AVIF where your browser offers it. Unavailable formats are disabled.
Privacy
- Your images stay on your device.
- Processing happens in your browser using built-in Canvas features.
- No server upload is needed and no image is stored by this page.
- No third-party image-processing service is used.