What is Crop Image?
Crop Image is a free browser-based image tool. All image processing uses your browser's Canvas API — no file is ever uploaded to a server. Works with JPG, PNG and WebP formats. Results are instant, with no account or software installation required.
This tool lets you crop to custom dimensions without installing any software or creating an account. Everything runs directly in your browser for maximum privacy. Your files and data never leave your device.
Use it for quick tasks at any time from any device — desktop, tablet or mobile. No subscription, no ads, no limits.
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Instant results
No server processing or wait
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100% private
Files stay on your device
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Always free
No subscription or fees
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Mobile ready
Works on any device
How to use Crop Image
- Upload your JPG, PNG or WebP image
- Drag the crop handles to select the area you want to keep
- Enter exact pixel dimensions if you need a precise crop size
- Click Crop and download your trimmed image
Why use OnlineToolsPlus?
Image tools on OnlineToolsPlus run entirely in your browser using the Canvas API — no file ever touches a server. This matters for privacy: your photos, screenshots and graphics stay on your device. With 15+ free image tools covering compression, conversion, cropping, OCR, watermarking and more, you can handle any image task without installing software or creating an account.
Frequently asked questions
Can I crop to an exact pixel size?
Yes. Enter the target width and height in pixels and the tool crops the image to exactly those dimensions. If your target aspect ratio differs from the current image, you choose which part of the image to keep by positioning the crop box.
Can I crop to a specific aspect ratio without knowing the pixel size?
Yes. Enable the aspect ratio lock and enter a ratio like 16:9 or 1:1. The crop box automatically constrains to that ratio. You can then resize the crop box and position it anywhere on the image. The tool calculates the pixel dimensions automatically from the size and position of the box.
Does cropping reduce image quality?
No. Cropping is a lossless operation — it simply removes pixels from the edges without altering the remaining pixels. The quality of the kept portion is identical to the original. File size will be smaller because there are fewer pixels, but quality per pixel is unchanged.
What is the difference between crop and resize?
Crop removes part of the image, changing the framing and reducing the pixel count only by what is removed. Resize changes all pixel dimensions proportionally (or non-proportionally), keeping the full frame visible but at a different resolution. For social media, the typical workflow is crop first to the right ratio, then resize to the required pixel dimensions.
Can I crop a PNG without losing transparency?
Yes. The tool preserves the PNG alpha channel when cropping. If your original PNG has a transparent background, the cropped version will also have a transparent background in the same areas.
How do I crop a circle from a photo?
Standard cropping produces rectangular results. For a circular crop (common for profile photos), use the crop tool to get a square first, then use an image editor or the Image Effects tool to apply a circular mask. Some platforms like Twitter and Instagram automatically display profile photos as circles regardless of the original shape.
Can I undo a crop?
Before downloading, you can adjust the crop box freely. After downloading the cropped image, there is no undo — the removed pixels are gone from the downloaded file. Your original file on your device is never modified, so you can always re-upload the original and crop again.
Does the tool work on mobile?
Yes. The Image Cropper works on any modern smartphone or tablet. Tap the upload area to select an image, drag the handles to set the crop area, and tap Download to save the result to your device.
What is the maximum image size I can crop?
There is no size limit. The tool runs entirely in your browser using the Canvas API — no file is sent to a server. You are limited only by available device memory. Modern browsers handle files up to 50 MB or more without any issue.
Can I crop and resize in one step?
The crop tool focuses on selecting the region and aspect ratio. For a specific output pixel size, crop first to get the right framing, then use the Image Resizer to bring it to exact pixel dimensions. Both tools are free and run entirely in your browser.
- Rule of thirds: Place the subject at one of the four intersection points of a 3×3 grid rather than dead center. Most photos become more visually engaging with this adjustment.
- Remove distractions: Cropping is the fastest way to remove unwanted elements from the edges — a stray arm, a car, a busy background corner — without needing to edit the image.
- Crop tight for portraits: Headshots and profile photos look more professional when cropped to show the face filling most of the frame, with a small margin at the top.
- Straighten the horizon first: If your photo has a tilted horizon, straighten (rotate) it before cropping so you do not lose content at the edges of the frame.
Cropping Tips for Better Composition
- 1:1 (square): Instagram feed posts, profile photos, product thumbnails, Facebook post images
- 4:3: Standard TV format, older monitor format, many tablet screens — common for presentation slides
- 16:9: Widescreen HD — YouTube thumbnails, desktop wallpapers, video content, LinkedIn posts
- 9:16: Vertical mobile format — Instagram Stories, TikTok, YouTube Shorts, Snapchat
- 4:5: Instagram portrait posts — maximum vertical space in the feed while remaining within feed crop
- 2:1 (panoramic): Twitter/X header, LinkedIn banner
- 3:2: Standard DSLR photo ratio — closest to the 35mm film frame
Choosing the right aspect ratio before cropping saves the extra step of resizing afterward:
Standard Aspect Ratios Explained
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Last updated: April 11, 2026
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