How to Crop an Image Online — Free, Precise & Instant

What Is Cropping?

Cropping means cutting away part of an image to remove unwanted areas or to change the composition. Unlike resizing (which scales the entire image), cropping removes pixels from the edges or interior, resulting in a smaller image with different dimensions.

Common reasons to crop:

Remove distracting backgrounds or objects at the edges
Change the aspect ratio for a specific platform (e.g., square for Instagram)
Focus on the subject of a photo
Straighten a slightly rotated image by cropping

How to Crop an Image on Pixel Image

Go to ppimage.com/crop
Upload your image — JPG, PNG, WebP, GIF supported
Select a crop mode:
- Free crop — drag the handles freely to any shape
- Aspect ratio crop — lock to a ratio like 1:1, 16:9, 4:3, or 3:2
- Fixed size crop — enter an exact pixel width and height (e.g., 800×600)
Drag the crop box to position it on the area you want to keep
Download your cropped image

No account needed. Runs entirely in your browser — images stay private.

Aspect Ratios for Common Platforms

If you’re cropping for a specific platform, use these aspect ratios:

Platform / Use	Aspect Ratio
Instagram post	1:1 (square)
Instagram portrait	4:5
Instagram landscape	1.91:1
Facebook post	1.91:1
Facebook cover	205:78 (~2.6:1)
Twitter/X post	16:9
YouTube thumbnail	16:9
Standard photo print (4×6")	3:2
A4 print	~√2:1 ≈ 1.414:1
Square avatar/profile	1:1

Crop vs. Resize: What’s the Difference?

	Crop	Resize
What changes	Area of image (pixels are removed)	Scale of entire image
Dimensions after	Smaller (fewer pixels)	Can be larger or smaller
Subject changes?	Yes — you choose what stays	No — the whole image scales
When to use	Remove edges, change composition	Change file size / fit a dimension

Often, you’ll want to crop first, then resize to a specific dimension. For example: crop a landscape photo to a 1:1 square, then resize to exactly 1080×1080 px for Instagram.

How to Crop to Exact Pixels

If you need a precise output size (e.g., a profile picture must be exactly 400×400 px), there are two approaches:

Fixed-size crop mode — enter 400×400 in the crop tool. The crop box will snap to exactly those proportions. After downloading, the image is 400×400.
Crop then resize — do a free crop to focus on the right area, then use the Resize tool to hit the exact pixel dimensions.

Tips for Better Cropping

Rule of Thirds

Imagine your image divided into a 3×3 grid. Placing the main subject at the intersection of the grid lines (not dead center) creates a more dynamic, professional-looking composition. Many crop tools overlay a grid guide.

Crop Generously, Then Adjust

It’s tempting to crop very tight around the subject. Leave a bit of breathing room — a little empty space around the subject usually looks better than a claustrophobic crop.

Consider the Output Platform

Crop with the final use in mind. A photo cropped for print (3:2 ratio) will have black bars or be re-cropped when used as an Instagram story (9:16). Plan for where the image will actually be displayed.

Frequently Asked Questions

Does cropping reduce image quality? No. Cropping only removes pixels — it doesn’t re-compress the image. The pixels that remain are exactly the same quality as the original.

Can I crop a GIF? Yes, but only the first frame will be used as a static image. Animated GIF cropping is not supported in the browser-based tool.

Can I undo a crop? Yes — before you click Download, you can adjust the crop box freely. Once downloaded, the original image is unchanged in your file system.

How do I rotate and then crop? Use the Rotate tool first to straighten the image, then crop it to the final composition.

Crop your images now at ppimage.com/crop — free, instant, and private.