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Free photo planning tools

Make every pixel count.

Check whether your photo has enough pixels, preview the crop, find your frame size and plan a gallery wall. Private tools, no account needed.

Check my print ↓Crop preview

Image dimensions

JPG, PNG or WebP. Up to 20 MB and 40 megapixels. Images stay on your device.

Print settings
Crop position

Source crop preview

Manual dimensions

Effective resolution—

PPI is a planning metric, not a guarantee of sharpness or printer quality.

PNG export contains selected pixels only. Margins are excluded; your target PPI is not embedded.

Your photo toolkit

Print Resolution Checker — Pixels, Size & PPICalculate effective PPI from image pixels and physical print dimensions. Compare cropping or fitting the whole photo against your own target.Aspect Ratio Crop Preview — Local PNG ExportPreview a crop at common photo ratios, move its position and download the selected pixels as a PNG. Images stay on your device.Frame Size Calculator — Mat & Outer DimensionsCalculate mat and outer-frame dimensions from your print size, equal border width and moulding width, with a visual composition preview.Photo Wall Planner — Frame Grid & SpacingPreview a uniform grid of frames, adjust gaps, measure total width and height, and check the layout against the wall dimensions you enter.

How it works

Start with image pixel dimensions or load a JPG, PNG or WebP. Choose a physical print size and a target pixels-per-inch value. PhotoMath calculates effective resolution after cropping, rather than treating every source pixel as available for every print shape. The crop position can be changed without changing the amount of retained image area. Use the frame calculator to add equal mat borders and moulding widths, then transfer those outer dimensions into a centered wall grid. Settings stay in this browser across pages and languages. Loaded photos stay in memory and are never uploaded or stored by the tools.

Frequently asked questions

Are photos uploaded or saved?

No. Image decoding, preview and export happen in your browser. Only numeric settings are saved locally. Reloading removes loaded photos; use the demo to try the image workflow.

Does a 300 PPI result guarantee a sharp print?

No. Focus, source quality, viewing distance, paper and the printing process also matter. Choose a target appropriate to your intended output.

Are centimetres and inches interchangeable here?

Yes. Settings are stored in millimetres and converted for display. Changing units preserves the same physical sizes.