Image Crop Tool

The following platform presets are available with their standard aspect ratios: Instagram Post (1:1 square, 1080x1080px recommended), Instagram Story (9:16 vertical, 1080x1920px), Facebook Post (16:9, 1200x675px), Facebook Cover (820:312, wide banner), Twitter/X Post (16:9, 1200x675px), Twitter/X Header (3:1, 1500x500px), YouTube Thumbnail (16:9, 1280x720px), LinkedIn Post (1.91:1, 1200x628px), Pinterest Pin (2:3 vertical, 1000x1500px). Select a preset and the crop selection snaps to the correct aspect ratio automatically.

Aspect ratio controls the shape of the crop selection — 16:9 means the crop area is always 16 units wide for every 9 units tall, regardless of the actual pixel size. This is what social media presets use. Custom dimensions let you specify exact pixel output sizes: crop to exactly 800x600 pixels. You can combine both: pick a social media ratio to constrain the shape, then enter a specific width and the height calculates automatically to maintain that ratio. Use ratio mode when the platform accepts any size (they usually scale up or down); use exact dimensions when a platform has a required minimum or maximum pixel count.

When "Maintain Ratio" is enabled: the crop selection can only be resized proportionally. Dragging any corner or edge automatically adjusts the opposite dimension to preserve the ratio. This ensures the crop shape stays exactly as specified. When ratio is unlocked (free crop): you can drag width and height independently to create any shape. Use locked mode for all social media platform uploads — platforms have specific display ratios and a mismatched crop gets auto-cropped or distorted by the platform.

Yes. Enter the desired width and height in pixels and the output file will be exactly those dimensions. The crop selection on the screen is a visual representation scaled to fit your display, but the actual exported image pixel count matches what you entered. Note: if you enter dimensions larger than the actual crop area (upscaling), the output will look blurry at those dimensions because pixels must be interpolated. For best quality, crop at or below the source image's native resolution.

10MB per image. For files above 10MB (very high-resolution photos from DSLR or smartphone cameras), first use the Image Resize tool to reduce the overall dimensions, then crop the resized version. This also speeds up the cropping interaction, since very large images require more browser memory for Canvas operations.

Cropping selects a portion of the image and discards the rest — you are reducing the field of view, not the size of what remains. Resizing scales the entire image (all content) up or down — the field of view stays the same but the pixel dimensions change. Common workflow: resize a large photo down to a reasonable display size first (e.g., 2000px wide), then crop to the needed aspect ratio. Doing it in this order avoids cropping at full resolution unnecessarily and gives you a more accurately sized output.

No. All cropping happens in your browser using the HTML5 Canvas API. Your image is read locally (FileReader API), the crop coordinates are calculated in JavaScript, and the result is drawn to an off-screen canvas and downloaded via canvas.toBlob(). Nothing is uploaded anywhere. Safe for personal photos, confidential documents, and any image you prefer to keep private.