No. All image rendering, canvas cropping, coordinate calculations, and format conversions execute 100% client-side inside your browser JavaScript engine. Your photos never leave your device or touch any remote server.

You can upload PNG, JPG, JPEG, WebP, GIF, SVG, and BMP files. You can export the cropped result into PNG (lossless with transparency), JPG (compressed photograph), or WebP (modern lightweight web format).

Yes! You can press Alt+P or click 'Smart Paste' to trigger DevToys-style Smart Clipboard Auto-Detection. It automatically detects raw OS image blobs, Base64 Data URLs, remote web image links, aspect ratio strings (16:9, 1:1, etc.), and JSON crop configurations with instant parsing.

Telekit Image Cropper includes 17 curated aspect ratio presets across 5 categories: 1:1 Square (Instagram / Avatar), 4:5 Portrait (IG Feed), 9:16 Story/Reel (TikTok / Shorts), 16:9 Wide (YouTube / HD), 1.91:1 OpenGraph (Facebook / Twitter Link Cards), 2:1 Header, 3:1 LinkedIn Banner, 4:1 Panorama, 3:4 Pinterest Pin, 4:3 Classic, 3:2 DSLR Photo, 2:3 Portrait, 5:4 Print, 35:45 Passport ID, 21:9 Cinema Ultrawide, and 1:2 Tall Mobile.

Yes! Choose the 'Circle (Avatar)' mask shape option. The canvas will clip and render a circular preview mask. Exporting to PNG will preserve transparent corners around the circular avatar.

Yes! Click the '📋 Copy Blob' button. Telekit Tools uses an offscreen canvas to synthesize a standard PNG image blob compatible with the Web Clipboard API, allowing instant pasting into Slack, Figma, Discord, WhatsApp, or Photoshop.

Yes! Click the '💻 API Code' button in the hero toolbar (or press Alt+S) to generate production-ready code in TypeScript (HTML5 Canvas), Python (Pillow / PIL), Node.js (Sharp), Go (image/draw), Rust (image-rs), or Bash (ImageMagick).

You can toggle between 4 visual framing guides: Off, 3×3 Rule of Thirds, Golden Ratio (phi proportion lines), and Center Crosshair for alignment.

When exporting to PNG, cropping is 100% lossless. When exporting to JPG or WebP, you have full control via the compression quality slider (50% to 100%) to balance crispness and file size.

Press Alt+K or '?' to open the full interactive shortcuts guide with 24 supported hotkeys: Alt+P (DevToys Smart Clipboard Auto-Detect), Alt+D (Star Tool favorite bookmark), Alt+V (Split Studio vs Stacked layout density), Alt+R (Surprise Me random preset), Alt+S (Developer API Code Snippets Studio), Alt+H (Session History), '/' or 'U' (Upload Image), 'C' (Center Crop Box), 'M' (Maximize Crop Box), 'R' (Rotate 90° CW), 'L' (Toggle Aspect Lock), 'G' (Cycle Framing Guides), Alt+1..6 (1-Click Quick Copy across Data URL, HTML tag, CSS rule, Markdown table, CSV matrix, and JSON audit), 'Ctrl+Enter' (Download cropped image), and 'Esc' (Reset crop / dismiss modals).