Crop Image.

Upload your image to HQCalc's Image Cropper, drag the crop handles to your desired area, choose an aspect ratio or social preset if needed, select your output format (WEBP recommended), and click Crop Image. Your cropped file downloads instantly — no account or sign-up required.

HQCalc's Image Cropper supports Free crop (any shape), 1:1 (square), 4:3, 16:9, 3:2, 2:3, 9:16, 5:4, and 21:9. You can also apply social media presets which automatically set the correct ratio for each platform.

Yes. Use the Social tab to select Instagram Post (1080×1080, 1:1), Instagram Portrait (1080×1350, 4:5), or Instagram Story (1080×1920, 9:16). Selecting a social preset automatically sets the correct aspect ratio and exports at the exact pixel dimensions required by each format.

Cropping itself does not reduce quality — it simply removes the portions outside your selected area. The cropped pixels retain their original resolution. However, exporting as JPEG or WEBP with a quality below 100 introduces some compression. Use PNG for lossless output with no quality loss.

Yes. The toolbar above the crop canvas has rotate buttons for 90° left and 90° right rotation (cumulative, so you can reach 180° and 270°). Rotation is applied before the crop, so your crop selection always reflects the rotated orientation.

The rule of thirds is a photographic composition principle where you divide a frame into a 3×3 grid. Subjects placed at the intersections of these grid lines create more visually balanced and dynamic compositions than centering subjects. HQCalc shows this grid inside the crop box as a guide.

Yes. The toolbar has flip horizontal and flip vertical buttons. These mirror the image along the respective axis before cropping. This is useful for correcting selfies, mirror-image scans, or creating symmetric compositions.

HQCalc's Image Cropper supports three output formats: JPEG (universal, good for photos), PNG (lossless, preserves transparency), and WEBP (best compression, 25-35% smaller than JPEG at the same quality, supported by all modern browsers).

No. HQCalc's Image Cropper runs 100% in your browser using the HTML5 Canvas API. Your image is loaded into browser memory, processed locally, and downloaded — it never touches any server. This makes it completely private and secure.

Yes. When you select the YouTube Thumbnail preset (1280×720) or HD Wallpaper-equivalent presets in the Social tab, the output is exported at those exact pixel dimensions. For other precise sizes, use the Image Resizer tool after cropping, or choose the 16:9 ratio and export at your desired resolution.

16:9 is the standard widescreen aspect ratio used by most modern monitors, TVs, and video platforms like YouTube. For every 16 units of width, the height is 9 units. Common 16:9 resolutions include 1280×720 (HD), 1920×1080 (Full HD), 2560×1440 (QHD), and 3840×2160 (4K).

Click the '1:1' button in the Ratio tab. The crop box will automatically constrain to a perfect square — dragging any edge or corner will maintain the square proportion. This is the correct format for Instagram posts, profile pictures, and most avatar uploads.

Yes. Use the zoom controls in the toolbar (+ and −) or the Canvas Zoom slider in the Settings tab to zoom into the canvas for more precise handle placement. Zooming only affects the display; it does not affect the actual crop output dimensions.

Cropping removes portions of the image to change its composition or aspect ratio without changing the pixel density of the remaining area. Resizing scales the entire image (or the cropped result) to specific pixel dimensions. For best results: crop first to get the right composition, then resize to the target dimensions.

Never. HQCalc is completely free with no watermarks, no branding overlays, and no limitations on export. Your cropped image is entirely yours.

Yes. Upload a PNG with an alpha channel (transparent areas) and select PNG as your output format. The crop tool preserves transparency through the canvas processing. If you export as JPEG, transparent areas will be filled with white since JPEG does not support transparency.

The crop box is displayed at screen scale (often smaller than the original image). The actual crop is calculated by scaling the box coordinates back to the original image's natural dimensions. This ensures full-resolution output regardless of how small the image appears on screen.

Yes. HQCalc's Image Cropper supports touch events — you can drag the crop handles and move the crop box using touch gestures on any modern smartphone or tablet browser. The interface is responsive and works on iOS Safari, Chrome for Android, and other mobile browsers.

WEBP is a modern image format developed by Google offering 25–35% smaller file sizes than JPEG at equivalent visual quality. It supports transparency (like PNG) and is supported by all modern browsers. For web use, WEBP is the recommended output format. For sharing on platforms with limited format support, use JPEG.

There is no server-imposed limit since all processing happens locally. Practical limits depend on your device's RAM and browser. Most modern devices handle images up to 20–30MB without issues. Very large files may take a moment to load and process on lower-end devices.