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Aspect Ratio Crop Tool | Free Online Image Ratio Cropper

Crop image to perfect aspect ratios like 16:9, 4:3, 1:1, 3:2 and more. Lock your desired ratio and adjust the crop area freely. Free online tool with no watermark.

Aspect Ratio Crop Features

Preset Aspect Ratios

Choose from popular aspect ratios: 1:1 square, 16:9 video, 4:3 photo, 3:2 DSLR, 9:16 story, and more. One click to lock the ratio for consistent aspect ratio crop results.

Custom Ratio Support

Need a specific aspect ratio? Enter custom width and height values to create any ratio you need. Perfect for unique aspect ratio crop requirements.

Rotate & Flip with Ratio Lock

Rotate 90° or flip your image while keeping the aspect ratio locked. The crop box automatically adjusts to maintain your selected ratio.

Private Browser Processing

All aspect ratio crop processing happens locally in your browser. Your images are never uploaded — complete privacy for your photos.

How to Crop Image to Aspect Ratio

Upload Your Image

Drag and drop or click to upload your image. Our aspect ratio crop tool supports JPG, PNG, WebP, GIF, and BMP formats up to 50MB.

Select Aspect Ratio

Choose from preset ratios like 16:9, 4:3, 1:1, or enter a custom ratio. The crop box will lock to your selected aspect ratio automatically.

Adjust & Download

Drag the crop box to select the area you want. Click download to save your aspect ratio cropped image instantly with no watermark.

Popular Aspect Ratios Explained

1:1

1:1 Square Aspect Ratio

Perfect square format ideal for Instagram posts, profile pictures, and album covers. The 1:1 aspect ratio crop creates balanced, symmetrical images.

16:9

16:9 Widescreen Aspect Ratio

Standard widescreen format for YouTube thumbnails, video covers, TV displays, and desktop wallpapers. The most common video aspect ratio crop choice.

4:3

4:3 Standard Aspect Ratio

Classic photo format used by many digital cameras and older displays. Great for aspect ratio crop of traditional photographs and presentations.

3:2

3:2 DSLR Aspect Ratio

Native format for most DSLR and mirrorless cameras. Ideal aspect ratio crop for photography prints in 4×6 and 6×9 inch sizes.

9:16

9:16 Vertical/Story Aspect Ratio

Vertical format for Instagram Stories, TikTok, YouTube Shorts, and smartphone wallpapers. Essential aspect ratio crop for mobile-first content.

21:9

21:9 Ultrawide Aspect Ratio

Cinematic ultrawide format for movie-style banners, ultrawide monitors, and dramatic panoramic images. Aspect ratio crop for immersive visuals.

When to Use Aspect Ratio Crop

YouTube Thumbnail (16:9)

Crop image to 16:9 aspect ratio for YouTube video thumbnails. This widescreen ratio ensures your thumbnails display perfectly without cropping by the platform.

Instagram Post (1:1)

Use 1:1 aspect ratio crop for Instagram feed posts. Square images display fully in the grid without any edges being cut off.

Instagram Story (9:16)

Crop to 9:16 aspect ratio for Instagram and Facebook Stories, TikTok videos, and YouTube Shorts. Full-screen vertical content for mobile viewers.

Photo Printing (3:2)

Aspect ratio crop to 3:2 for standard photo prints like 4×6 inches. Match your camera's native ratio to avoid unexpected cropping at print shops.

Facebook Cover (16:9)

Crop image to 16:9 or similar wide aspect ratios for Facebook page covers and event banners. Ensure important content stays visible on all devices.

Twitter Header (3:1)

Use wide aspect ratio crop for Twitter/X profile headers. The 3:1 or similar ratio works well for banner-style images.

PowerPoint Slides (16:9)

Crop images to 16:9 aspect ratio for modern widescreen presentations. Consistent ratios make your slides look professional.

Product Photography (1:1)

E-commerce platforms often prefer 1:1 aspect ratio crop for product listings. Square images display consistently across product grids.

Pinterest Pin (2:3)

Vertical 2:3 aspect ratio crop works great for Pinterest pins. Taller images get more visibility in Pinterest's vertical feed.

Aspect Ratio Crop Tips

Know Your Target Platform

Before aspect ratio crop, identify where the image will be used. YouTube needs 16:9, Instagram feed uses 1:1, Stories require 9:16. Matching the platform's ratio avoids unexpected cropping.

Start with High Resolution

Use high-resolution originals for aspect ratio crop. This gives more flexibility when cropping to specific ratios without losing important details or image quality.

Maximize Subject Coverage

When using aspect ratio crop, position the crop box to include as much of your subject as possible. The locked ratio may require creative positioning to capture key elements.

Use Grid Overlay for Composition

Enable the rule of thirds grid during aspect ratio crop. Align your subject with grid intersections for more visually appealing compositions.

Consider Orientation First

Decide between landscape (16:9) or portrait (9:16) orientation before aspect ratio crop. Rotating after cropping may not give the same results.

Save Multiple Versions

Keep the original image and save aspect ratio crop results separately. You may need different ratios for different platforms from the same source image.

Why Choose Our Aspect Ratio Crop Tool

100% Free Forever

Aspect ratio crop completely free. No hidden fees, no premium tiers, no usage limits. Crop to any ratio as many times as you need.

Instant Ratio Lock

Select a ratio and the crop box locks instantly. Drag to resize while maintaining perfect proportions — aspect ratio crop made effortless.

Private Local Processing

All aspect ratio crop processing happens in your browser. Images never leave your device — complete privacy guaranteed.

No Watermarks

Every aspect ratio crop result is completely watermark-free. Download clean images ready for any use — personal or commercial.

No Account Required

Start aspect ratio crop instantly without registration. No email verification, no login required — just upload and crop.

Works on All Devices

Use aspect ratio crop on desktop, tablet, or mobile. Responsive design works perfectly on any screen size.

Aspect Ratio Crop - FAQ

Aspect ratio is the proportional relationship between an image's width and height. For example, 16:9 means for every 16 units of width, there are 9 units of height. Aspect ratio crop locks this proportion while you adjust the crop area.

Use 1:1 for Instagram feed posts, 9:16 for Stories/Reels/TikTok, 16:9 for YouTube thumbnails and Facebook covers, and 2:3 for Pinterest pins. Our aspect ratio crop tool has all these presets ready.

Yes! Beyond the preset ratios, you can enter any custom width and height values to create your own aspect ratio. Perfect for specific requirements that standard ratios don't cover.

Free crop lets you select any rectangular area without constraints. Aspect ratio crop locks the width-to-height proportion, so when you resize the crop box, it maintains the same ratio throughout.

Cropping itself doesn't reduce quality — it simply removes pixels outside the crop area. The cropped portion retains original quality. For best results, start with a high-resolution source image.

No. Aspect ratio is the shape proportion (like 16:9), while resolution is the actual pixel dimensions (like 1920×1080). Two images can have the same 16:9 aspect ratio but different resolutions.

3:2 matches most DSLR cameras and standard 4×6 inch prints. 4:3 works for 8×6 prints. 5:4 is ideal for 8×10 prints. Use aspect ratio crop to match your intended print size.

Yes. Our aspect ratio crop tool lets you rotate 90° while automatically adjusting the crop box to maintain your selected ratio. You can also flip horizontally or vertically.

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