Resize Image Online Free
Resize images to exact pixel dimensions.
A photo that is the wrong size is a small problem with an annoying fix. This free image resizer sets exact pixel dimensions right in your browser. Type the width and height you need, or scale by percentage, and lock the aspect ratio to avoid stretching. Presets cover common sizes for social posts, profile pictures, and thumbnails. Download the resized image in JPG, PNG, or WebP. Nothing is uploaded, so your photos stay private.
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About Image Resizer
An image straight from a camera or screenshot is almost never the size a layout needs, heroes want 1920 wide, social posts want squares, link previews want 1200x628. This tool reshapes images to exact pixel dimensions, scales by percentage, or jumps straight to presets for common web and social sizes.
Keep the aspect-ratio lock on unless you specifically want to stretch: it adjusts the other dimension automatically so circles stay circular. Resampling is high quality, and you choose the download format, PNG for graphics with transparency, JPG for photos, WebP for the smallest files. Images up to 25 MB are accepted, with dimensions from 1 to 12000 pixels.
Resizing down is safe; resizing up is where expectations break. Enlarging beyond the original can't invent detail, it just makes a bigger, softer image, so always start from the largest source available. For crisp results on high-density screens, export at 2x the display size rather than upscaling later.
How to use Image Resizer
- Choose an image or drag it into the box.
- Enter the width and height you want, or pick a preset.
- Keep aspect ratio locked to avoid stretching.
- Click Resize, then download the new image.
Why use this tool?
- Aspect-ratio lock
- Handy presets for web and social
- High-quality resampling
Tips for best results
- Lock the aspect ratio: it prevents accidental stretching, the other dimension adjusts automatically.
- Use presets for social: 1080x1080 for square posts, 1920x1080 for HD, 1200x628 for link previews.
- Start from the largest source: downscaling stays sharp; upscaling beyond the original only adds blur.
- Export 2x for retina: double the display dimensions for crisp rendering on high-density screens.
- Pick format on download: PNG for transparency, JPG for photos, WebP for smallest files.
- Resize before compressing: shrink dimensions first, then compress, the order gives the smallest final file.