The Guide IndexThe Guide Index

The workbench

A little less arithmetic.

These tools run in this browser. Nothing you type is uploaded or saved by these tools. They are rough checks, not compatibility guarantees.

Start with a complete check

Three-axis fit check

Use internal dimensions for the container and external dimensions for the object, in the same units. Match the orientation deliberately. This does not account for curves, openings, padding compression or tolerances.

Object dimensions
Usable container dimensions, same units

Read the full sleeve-fit guide before treating a numerical pass as real compatibility.

CSV header inspection

Paste only the first header row, not subscriber data. This tool identifies blank or repeated column names. It does not check consent, field values, quoting across rows or whether an import is safe.

Map a CSV into Kit for the field-overwrite and automation checks the tool cannot perform.