Exact sizes in seconds, right in your browser.
Resize an image to exact pixels or a percentage, crop it to a ratio such as 1:1 or 16:9, and rotate or flip it. One-tap presets cover Instagram, YouTube and ID photos. The image is processed in your browser with high-quality resampling and is never uploaded anywhere.
Type the width and height in pixels. Keep the ratio lock on to avoid stretching; the other side is calculated for you. To get an exact size with a different shape, choose “Fill and crop”, which trims the edges evenly.
Instagram uses 1080 pixels wide: 1080×1080 for square posts, 1080×1350 for portrait posts and 1080×1920 for Stories and Reels. The presets set these sizes with one tap.
Making an image smaller keeps it sharp because the tool uses Lanczos resampling. Making it larger cannot add detail that was never captured, so enlarged images look softer; avoid upscaling by more than about two times.
Leave the ratio lock switched on and change only the width or the height. The other side follows automatically, so nothing gets stretched or squashed.
Use the rotate buttons to turn the image 90 degrees left or right, or flip it horizontally or vertically. The preview shows the result before you download it.
It depends on the country. A US passport photo is 2×2 inches, which is 600×600 pixels at 300 DPI, while many countries use 35×45 mm. Always check the official rules of the issuing office.
Usually yes: fewer pixels mean a smaller file. To shrink the file size further without changing dimensions, use the Compress Image tool afterwards.
Use pixels when a destination demands an exact size: a banner, a profile picture, a form that asks for 800×600. Use a percentage when you just want everything at half size, especially for a batch of photos that all have different dimensions.
Keep the ratio lock on and change only one side; the other follows, so nothing is stretched. If you need an exact size in a different shape, choose fill: it trims the edges evenly. Fit keeps the whole picture, and stretch forces the size and distorts the picture, so use it only for abstract images.
Crop on the preview by dragging the frame, and pick a ratio such as 1:1, 4:5 or 16:9 to lock its shape. The focused page for this job is crop image. Crop works on one picture at a time.
A good order is to crop first and resize second. If you resize first and crop later, the final size is rarely a round number and you will need a second pass.
Turn the picture 90 degrees left or right with the buttons, or flip it horizontally or vertically. The page for rotating an image opens the same controls. A selfie that came out mirrored needs a horizontal flip; a photo lying on its side needs a rotation. The preview shows the result before you download.
Making a picture smaller keeps it sharp, but making it larger only stretches the pixels, so avoid enlarging by more than about two times. Fewer pixels usually mean a smaller file; for a further reduction without changing dimensions, run the result through Compress Image.
If you want to draw arrows or text on the picture, resize first and use Annotate Image afterwards, so the marks keep the proportions you chose. The size presets set 1080 pixels wide for Instagram posts, so you do not have to remember the numbers.
| This tool | Upload-based services | |
|---|---|---|
| Do files leave your device? | No | Yes |
| Account required | No | Often |
| Daily limit | None | Often |
| Watermark | None | Sometimes |
Through the local MCP server an AI assistant can resize, crop, rotate or flip images on your computer, for example “make these product photos 1200×1200 with a white background”. The tool is called resize_image and works on local files only.
