Crop Image Online

An aspect ratio is the shape of a picture, written as width to height. 16:9 means 16 units wide for every 9 tall, whatever the pixel count, so a 1280 × 720 thumbnail and a 3840 × 2160 4K frame are both 16:9 ratio images. Choosing a ratio locks the selection to that shape: drag it as much as you like and it only grows, shrinks and moves — its proportions never change.

The ratios come in pairs. 16:9 is widescreen, and 9:16 is the same shape turned upright for full-screen phone video. 4:3 is the shape most phone cameras shoot, and 3:4 is that photo held upright. 3:2 is the classic landscape camera frame, and 2:3 the same frame in portrait. 4:5 is a portrait just taller than a square, the shape Instagram uses for portrait posts, and 1:1 is a square.

Picking a ratio redraws the selection in the middle of the picture, covering 90% of whichever side runs out first, so choose the ratio before you position the box. To keep as much of the photo as possible, drag the corners out to the edges. From a 4032 × 3024 phone photo, the largest 16:9 crop is 4032 × 2268, the largest 3:2 crop is 4032 × 2688, the largest 9:16 crop is 1701 × 3024 and the largest 4:5 crop is 2419 × 3024.

A ratio fixes the shape, not the pixel count. When a site asks for an exact size such as 1080 × 1920, crop to 9:16 here and then resize the image to 1080 × 1920: the shapes already match, so nothing is squashed or cut a second time. For a shape that isn't listed — 5:7 for a 5 × 7 in print, 1.91:1 for a landscape Instagram post or the √2 shape of A4 paper — use Free and watch the pixel readout until the numbers fit. To see an image’s exact pixel size and aspect ratio before you crop, use the image size checker.

A PNG goes in and a PNG comes out. Transparent and semi-transparent pixels inside the selection stay exactly as they were, so a logo, icon, sticker or cut-out keeps its see-through background instead of picking up a white or black box. WEBP files with transparency behave the same way. PNG is lossless, so the pixels you keep are identical to the original: cropping a transparent PNG loses nothing.

The checkerboard behind the preview shows where the transparent areas are, which makes this a handy transparent image cropper. Trim the empty margin around a logo or a product cut-out right up to its edges so it lines up properly on a slide or in a layout, leaving a few pixels of air where soft, anti-aliased edges fade out.

A cropped PNG is usually smaller than the original because it holds fewer pixels, but it can occasionally come out larger: the browser saves full 32-bit color, while some PNGs are stored with a 256-color palette. If that happens, run the result through Compress PNG. To make a background transparent in the first place, remove the background and then crop the PNG here — cropping alone never turns a white background see-through.

Every platform has its own frame, and when a picture doesn't match it, the app crops it for you, usually straight through the middle, cutting off heads and captions. Cropping first means you choose what survives.

Instagram uses 1:1 for a square post (1080 × 1080), 4:5 for a portrait post (1080 × 1350), which takes up the most room in the feed, and 9:16 for a Story or Reel (1080 × 1920). For an Instagram story crop, keep faces and text away from the top and bottom, where the profile name and reply bar sit over the picture. The Instagram resizer and Instagram Story resizer produce those exact pixel sizes in one step.

TikTok, YouTube Shorts and Facebook Stories are 9:16 too. YouTube thumbnails, video covers and presentation slides are 16:9 — crop here, then use the YouTube thumbnail resizer to hit 1280 × 720. Pinterest favors tall 2:3 pins such as 1000 × 1500.

Profile pictures on Discord, X, LinkedIn, WhatsApp and most other sites are uploaded as a square and shown as a circle. Crop to 1:1 with the face in the middle and a little space around it, or choose Circle to see exactly what a round pfp crop keeps.

Choose Circle under Aspect ratio: the selection locks to a square and is drawn as a circle, so you see exactly what will be kept. Drag it over the face or the logo, pull a corner to change its size, then press Crop Image.

The result is a PNG with real transparency outside the circle, so it sits cleanly on any background — a round profile picture, a team-page avatar, a circular logo or a sticker. JPG cannot store transparency, which is why a circle crop is always saved as a PNG, even from a JPG photo, and why it can be larger than the photo it came from. For a page that does only this, there is also Circle Crop.

Cropping removes pixels from the edges and leaves the rest untouched. Resizing keeps the whole picture and redraws it with a different number of pixels. To turn a landscape photo into a 1080 × 1080 square, crop to 1:1 first and then resize the square — resizing a rectangle straight into a square squashes whatever is in it.

The selection readout shows the crop's size in real pixels, so with Free you can trim to a size by eye, nudging the box with the arrow keys for the last few pixels. For an exact target, crop to the right shape and then type the width and height into Resize Image. Enlarging a small crop later does not add detail, so start from the largest original you have.

If you need a new shape but can't lose any of the picture, cropping is the wrong tool. Stretch the image to fill the shape by distorting it, or use the WhatsApp DP maker to fit the whole photo into a square over a blurred copy of itself. To keep two or more whole pictures in one frame, side by side or in a grid, combine the images instead.

No resampling happens: the selected region is copied at its original resolution, so a crop is exactly as sharp as the source. A crop covering a quarter of a 4000 × 3000 photo is still a 2000 × 1500 image.

The output keeps its format: JPG stays JPG, PNG stays PNG and WEBP stays WEBP. PNG is saved losslessly. JPG and WEBP are re-encoded at 92% quality, which you won't see in a photo — just avoid cropping the same JPG over and over, because every save adds a little compression. A HEIC photo from an iPhone is saved as a JPG, since browsers cannot write HEIC.

The new file is drawn fresh, so camera metadata such as EXIF details and GPS location is not carried over — worth knowing before you share a photo publicly. To hide a face or a license plate without cutting it out of the picture, pixelate just that part of the image instead. SVG, GIF and PDF files can't be opened here: export an SVG as a PNG from your vector editor first, and use PDF to PNG to turn a PDF page into an image you can crop.

Phones and computers can all crop with built-in apps: Photos on iPhone and Mac, Google Photos on Android, and Photos or the Snipping Tool on Windows. On a Mac, Preview crops any rectangle you draw with ⌘K.

This page is the better choice when you need a ratio your app doesn't offer, such as 4:5 or 9:16, when a transparent PNG must stay transparent, when you want the exact pixel size in front of you while you crop, or when you're on a work or shared computer where you can't install anything. It runs in any modern browser on phones, tablets and desktops, and the file never leaves your device.