Tool workspace
PNG, JPEG, GIF, WebP, AVIF and other browser-supported images are read locally. Choosing one fills its dimensions.
Social Image Inspector
Inspect local image dimensions and estimate fit, crop risk, and safe margins for common Open Graph, X, and square placements. It cannot predict every platform crop or text overlay.
Browser-localFreeNo upload required
What this tool is for
Inspect local image dimensions and estimate fit, crop risk, and safe margins for common Open Graph, X, and square placements. It cannot predict every platform crop or text overlay.
How to use
- Choose a local image or enter its pixel dimensions.
- Compare aspect ratio and safe-area guidance for the target placements.
- Keep essential text and faces away from the reported edges, then test the real deployed
URL.
Example
A 1200x630 image is close to the common 1.91:1 landscape target but may still crop in square placements.
FAQ
Does a green result guarantee no crop?
No. It indicates aspect fit only; platform layout can still crop.
Is the image uploaded?
No. Its dimensions are read locally.
Reproducible examples
Known inputs and expected results
Run these examples in the workspace above and compare the result with the documented output.
Landscape Open Graph image
- Input
- 1200 × 630 pixels
- Options
- Compare landscape, square, and safe-margin guidance.
- Action
- Inspect the aspect ratio.
- Expected output
- Approximately 1.90:1 and close to the common 1.91:1 landscape target.
- Explanation
- Good ratio fit does not guarantee that every surface preserves the full frame.
Square creative
- Input
- 1080 × 1080 pixels
- Options
- Choose square placement comparison.
- Action
- Inspect crop warnings for landscape surfaces.
- Expected output
- 1:1 fits square use and receives a landscape crop-risk warning.
- Explanation
- A platform may center-crop or apply a different surface-specific treatment.
Error or unsupported case
Unreadable or oversized file
- Input
- A corrupt image or a file above the displayed limit
- Expected error or limit
- The browser cannot decode dimensions or the size boundary blocks processing.
- Safer alternative
- Export a valid bounded image and verify the deployed
URLwith the platform's current debugger.
When not to use this tool
- Guaranteeing platform crop, overlay, or cache behavior
- Image compression, generation, moderation, or remote availability checks
Algorithm and assumptions
Dimensions are read locally; aspect ratios and safe zones are geometric approximations based on documented target shapes that platforms may change.
Input and output
Input is image dimensions, optionally read from a local image. Output is aspect ratio, placement fit, crop warning, and safe-margin estimates.
Supported formats and behavior
- Open Graph landscape
- X large image
- Square placement comparison
Limits
- No upload or platform
API - Exact cropping varies by platform, surface, and device
Edge cases and common errors
- Tiny images can have the right ratio but poor resolution
- Transparent edges can hide content
- Animated images are assessed by dimensions only
Release testing
Checks cover common target sizes, portrait/square mismatch, local file dimensions, invalid values, clear, network privacy, and mobile preview.
Privacy boundary
The input and result stay in this browser session. ZZP Box does not upload or store the values entered in this tool.
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