Image Cropper
Crop images to any size online for free. Aspect ratio presets for Instagram, YouTube, passport photos. Rotate and flip included.
About This Tool
Image Cropper lets you trim any part of your image with pixel-perfect precision. Choose a free-form crop, lock to a fixed aspect ratio, or pick a ready-made preset for Instagram, Facebook, YouTube thumbnails, and more β ideal for designers, social-media managers, and anyone preparing images for the web.
Drag & drop image or click to upload
JPG, PNG, WebP, GIF, BMP Β· Max 20MB
Your images are processed locally and never uploaded to any server.
How to Use
- Upload an image by dragging or clicking. (JPG, PNG, WebP, GIF, BMP / max 20MB)
- Select an aspect ratio preset or drag freely to define the crop area.
- Optionally rotate or flip the image.
- Choose the output format and click "Crop". (Shortcut: Enter)
- Review the result and click Download.
What is Image Cropping?
Image cropping is the process of selecting a desired portion of a photo and removing the rest. It's used to improve composition, adjust to platform-specific aspect ratios, or remove unwanted backgrounds.
Common Aspect Ratios
- 1:1 β Instagram feed, profile photos, KakaoTalk profile
- 16:9 β YouTube thumbnails, presentations, widescreen
- 4:3 β Standard photos, documents, web images
- 3:2 β DSLR photos, print (4Γ6 inches)
- 35Γ45mm β Passport photo (international standard)
- 3Γ4cm β ID photo (Korean standard)
Frequently Asked Questions
Is it safe to crop images here?
Yes, completely safe. All image processing happens locally in your browser. Your images are never uploaded to any server.
Can I crop to passport photo dimensions?
Yes, passport (35Γ45mm) and ID photo (3Γ4cm) presets are provided. Select the ratio and drag to choose the area.
How do I crop for Instagram?
Select 'Instagram (1:1)' from the social media presets to automatically apply a square aspect ratio.
Does cropping reduce image quality?
Saving as PNG is lossless with no quality loss. For JPEG, setting quality to 90% or above produces virtually identical results.
Can I rotate and crop at the same time?
Yes, rotate or flip the image first, then select your crop area and apply. Both transforms are processed together.
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How It Works
When you upload an image, it is rendered onto an HTML5 Canvas element entirely within your browser. The cropping region you select is translated into pixel coordinates, and the Canvas API's drawImage() method extracts exactly that rectangle into a new canvas. The result is then exported as a PNG or JPEG blob using toBlob(). Because all processing happens client-side via the Canvas API, your image files never leave your device β no server upload, no third-party access, complete privacy guaranteed.
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