Ratio Calibration • Client-Side Sandbox
Aspect ratio cropper
Choose the frame. Keep what matters.
No image loaded
Drop a JPG, PNG or WebP to start cropping. Everything stays in your browser.
or paste an image with Ctrl / ⌘ + V
Crop Geometry & Positioning
X/Y SyncOutput Configuration
Original uncompressed pixels never touch a cloud server. Full GPU-accelerated local canvas export.
Master the 4:5 Aspect Ratio
Why professional creators and high-growth brands anchor their primary grid presence to the vertical portrait standard.
- +33.3% Screen Coverage01
Command Feed Real Estate
The 4:5 vertical proportion claims up to 33% more physical screen height on mobile displays than legacy 1:1 squares, arresting thumb scrolling in high-velocity feeds.
- Dynamic Golden Intersects02
Rule of Thirds Focal Balance
The thirds overlay puts power intersections on the natural eye path, so vital subjects aren't lost when Instagram previews your post in carousels and the grid.
- Zero Server Compression Loss03
Lossless Client-Side Rendering
Export directly via the native Canvas pipeline without server degradation, compression artifacts, or metadata stripping — your pixels, your colour profile.
How to frame with precision
Lock in 4:5 for feed visibility
Instagram portrait feed posts claim 30% more vertical space than squares, maximising engagement rates. Pick a preset or type your own ratio.
Align key focal points to grid lines
Use the rule-of-thirds overlay, zoom and straighten controls to put eyes, horizons or product edges on the intersection nodes.
Export in WebP or crisp JPG
Download at native crop resolution — or resized to Instagram's exact display size — without the harsh server re-compression artifacts.