Pair-Group Cipher

Encrypt text using your two-step pair/group cipher. Fill the 9×9 pair-table and the 3×3 position-table below. Then type text to encode and press Encode.

Input text (plaintext)

Encoded output

Space rule: when a pair contains a space as the second character, pick any real letter for that second slot (you can set a default filler below) and the encoder will append = to that encoded pair to mark the space.

Default filler letter for spaces (single letter):

Group definitions (9 groups of 3 letters). Letters will be matched case-insensitively.

Group #	Letters (in order)

9×9 Pair → single symbol table (row group × column group)

3×3 Position → marker table (positions 1..3 × 1..3)

Pair-Group Cipher — Encoder