Trusted by creators, developers, and photographers worldwide
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“SizeSwift's interactive crop canvas handles 48-megapixel camera RAW exports without stuttering. It runs faster in my browser than heavy desktop photo editors.”
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Marcus Vance
Commercial Photographer
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“The client-side sandbox gives our legal team complete peace of mind. We can crop sensitive customer documents knowing zero bytes leave our corporate network.”
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Kaito Tanaka
Security Architect, Tokyo
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“The preset aspect ratio buttons make social media posting effortless. Square, story, and banner ratios are framed and exported in seconds.”
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Amara Okafor
Content Creator & Strategist
Frequently Asked Questions
Everything you need to know about precision in-browser cropping
Simply drag your photo into the workspace above, position the crop handles to frame your desired composition, and click "Crop & Download". Your cropped image generates instantly with zero watermarks and no account requirements.
Yes. When the "Free" preset is active, the aspect ratio is completely unlocked. You can drag any corner or edge handle independently to create any custom dimension or framing needed.
Clicking presets such as 1:1 (Square), 16:9 (Widescreen), or 9:16 (Story) locks the proportional relationship between width and height. As you drag the corner handles, the box expands or shrinks while maintaining the exact ratio.
No. SizeSwift extracts pixels directly from your original high-resolution master file using lossless HTML5 Canvas processing. Only the excluded area is discarded; the remaining image maintains 100% of its original pixel clarity.
Yes, 100%. SizeSwift operates entirely in your device's browser memory via client-side JavaScript. Your photos are never transmitted to external cloud servers, stored in databases, or used for AI model training.
SizeSwift supports all standard digital photo formats including JPG, JPEG, PNG, WebP, BMP, GIF, and modern smartphone HEIC photos.
Yes. The interactive crop canvas includes responsive touch gesture listeners, enabling smooth pinch, drag, and resize controls on iOS Safari, Android Chrome, and tablets.
As you drag the boundary handles, our geometry engine continuously maps canvas coordinates to source image resolution, reporting the exact output pixel dimensions in real time.
Yes. Simply click and drag anywhere inside the crop box to reposition it over your image without altering the width or height dimensions.