Transposition Workbench

A cryptanalytic board for columnar, incomplete columnar, nihilist, and related transposition work. Paste text, set the grid, apply a key, then drag, shift, and inspect patterns in one place.

Start Paste ciphertext, choose row/column writing, set the grid, then apply a key.
Board Drag headers to reorder. Shift-click row or column headers to multi-select. Use Group/Ungroup to save or release a block. Drag the grid corner to resize.
Common options Omit blanks for clean reads, group in fives for ACA-style output, and enter comma-separated crib words for highlighting.

Cipher Intake

Paste text, then set grid shape
Text keys convert to column numbers; THINK → 5 1 2 4 3.
25letters
25capacity
0blanks
5×5grid

Keys & Order

Type a key or drag headers

Groups, order, shifts, and working text are saved in this browser.

Working Grid

Drag headers, group blocks, inspect patterns
No header selected
Comma separated; defaults to common crib words.
CT — · PT — · —
Drag corner to resize

Readouts

Updates as the grid changes
Row read
Column read