Image
Image Resizer
Resize, crop-fit, rotate and flip an image, then export it at the size you actually need.
PNG, JPEG, WebP, GIF or AVIF — whatever your browser can open. It stays on your device.
Choose an image to see its current dimensions.
Upload limits on job forms, profile pictures that have to be square, a screenshot that needs to be half the width — resizing is the most common thing anyone needs to do to an image, and most of the free tools that do it make you upload the file to somebody's server first.
This one keeps the file on your machine. You get exact pixel control, a percentage scale, three ways to fit an image into a different shape, rotation in 90° steps, mirroring, and a quality slider for the lossy formats. The preview updates as you change settings so you can see the crop before you commit.
How to use it
- Choose an image. Its real pixel dimensions are shown under the file picker.
- Pick Exact pixels and type the width and height, or switch to Percentage for a quick 50% or 200%.
- Leave Keep the aspect ratio ticked and the second number follows the first, so nothing gets stretched.
- Choose how it should fit: Contain keeps the whole picture with padding, Cover fills the frame and trims the edges, Stretch distorts to the exact shape.
- Rotate in 90° steps or mirror horizontally or vertically if the shot is the wrong way round.
- Pick the output format and quality, check the preview, then press Download.
Questions
Does resizing smaller lose quality?
Yes, unavoidably — you are throwing pixels away. What matters is doing it in one pass with a good resampling filter rather than shrinking it twice. This tool uses the browser's high-quality smoothing, so a single resize from the original looks considerably better than the same result reached in two steps.
Can I make an image bigger?
You can, but no tool can invent detail that was never captured. Upscaling produces a softer, larger copy and is fine for a small logo or a low-resolution icon; it will not rescue an out-of-focus photograph. The tool warns you when the scale is above 100%.
Which format should I choose?
PNG for screenshots, logos, anything with transparency or flat colour. JPEG for photographs, where it is far smaller. WebP is usually the smallest of the three and works in every current browser, so it is a good default for the web.