How to Crop an Image
Cropping is a visual decision, which is why a tool that only offers four number fields makes it needlessly hard. Drop an image above and you get a proper crop frame: eight handles around the edge, a draggable centre, and everything outside the selection dimmed so you can see exactly what the result will look like in context. Pick an aspect ratio and the frame stays locked to that proportion as you drag — essential when the crop has to be square for a profile picture or 16:9 for a video thumbnail, where being a few pixels out means the platform crops it again for you. The rule-of-thirds grid inside the frame helps with composition: placing your subject on one of the intersections generally looks better than centring it. When you do need exact numbers, the X, Y, width and height fields accept them directly and stay in sync with the handles. The readout shows the crop dimensions, the resulting ratio and the output file size as you work, so there are no surprises. Choosing PNG means the crop is a straight pixel copy with nothing re-sampled or re-compressed. Everything runs in your browser and no image is uploaded.
Add your image
Drag and drop, paste, or click to browse.
Drag the frame
Position and size it, with an aspect ratio locked if needed.
Download
Choose the format and save the cropped result.
Cropping vs Resizing
Cropping removes area
You keep a rectangle and discard the rest. The remaining pixels are untouched, so there is no softening — but the parts you cut away are gone, and the composition changes.
Resizing rescales everything
The whole image is kept but redrawn at different dimensions. Nothing is removed from the frame, though downscaling does discard detail. Crop for composition, resize for dimensions.
Common Use Cases
Square profile picture
Lock to 1:1 and centre your face before uploading.
Video thumbnail
Lock 16:9 so the platform doesn't crop it again for you.
Stories and Reels
Use 9:16 for full-screen vertical formats.
Remove unwanted edges
Trim distracting elements from the sides of a photo.
Improve composition
Use the rule-of-thirds grid to reposition the subject.
Straighten a screenshot
Cut away browser chrome or desktop background.
Product photos
Crop consistently to the same ratio across a catalogue.
Print sizes
Match 3:2 or 4:3 before sending to a photo lab.
Tips & Best Practices
Lock the ratio for platforms
Cropping freehand then uploading means the platform crops again — usually badly. Lock the ratio it expects.
Use the rule of thirds
Placing the subject on a grid intersection almost always reads better than dead centre.
Crop before compressing
Removing area reduces file size for free, before you touch quality at all.
Leave some breathing room
Cropping too tightly to a face or product looks cramped, and leaves nothing for later reframing.
Choose PNG for a lossless crop
PNG copies pixels exactly. JPEG re-encodes and adds a small amount of loss even without resizing.
Keep the original
The cropped area is discarded permanently, so archive the full frame before overwriting it.
Troubleshooting
The frame won't change shape
An aspect ratio is locked. Choose Free to drag the edges independently.
My crop is smaller than expected
The dimensions shown are the actual output pixels, not the on-screen preview size — the preview is scaled to fit.
Transparency turned white
JPEG has no alpha channel. Choose PNG or WebP to keep transparency.
The handles are hard to grab on mobile
Zoom in slightly, or use the exact pixel fields underneath for fine adjustments.
Frequently Asked Questions
How do I crop an image for free?
Drop your image above, drag the crop handles to the area you want, and download — free, no signup and no watermark.
Are my images uploaded to a server?
No. Cropping happens entirely in your browser, so your images never leave your device.
Can I lock the aspect ratio?
Yes. Seven presets including 1:1, 4:3, 3:2, 16:9 and 9:16 keep the frame proportional as you drag.
Can I enter exact pixel values?
Yes. The X, Y, width and height fields accept precise numbers and stay in sync with the handles.
Does cropping reduce quality?
Not with PNG output — the crop is a pixel-for-pixel copy. JPEG re-encodes and adds a small amount of loss.
What is the rule-of-thirds grid?
A composition guide dividing the frame into thirds. Placing your subject on an intersection usually looks better than centring it.
Which ratio should I use for Instagram?
1:1 for a square post, 3:4 for portrait, and 9:16 for Stories and Reels.
Which ratio for a YouTube thumbnail?
16:9, which matches the player and avoids the platform re-cropping your image.
Does it reduce the file size?
Yes, since you're keeping fewer pixels. Crop before compressing for the best result.
Can I crop and then resize?
Yes — crop here for composition, then use our resize tool to set the final dimensions.
What happens to transparency?
PNG and WebP keep it. JPEG has no alpha channel, so transparent areas are filled with white.
Is there a file size limit?
No. Nothing is uploaded, so the only constraint is your device's memory.
Can I undo a crop?
Not after downloading — the removed area is gone. Keep your original file.
Does it work on touchscreens?
Yes. The handles respond to touch, and the pixel fields help with fine adjustments.
Does it remove EXIF data?
Yes. Canvas-based processing drops metadata, including any GPS coordinates.
Does it work offline?
Once the page has loaded it runs entirely in your browser, so it keeps working without a connection.
Does it work on phones?
Yes, in any modern browser on Windows, Mac, Android or iPhone with nothing to install.
Is this tool really free?
Completely free, forever — no account, no ads and no premium wall.
100% free · No signup · Processed in your browser · Never uploaded
Last updated: August 2026 · FlipMyFormat Image Cropper
Written and maintained by the FlipMyFormat team · Runs entirely in your browser