Grid code
Encode a message in a reading grid.
Place a message in a grid, then read it by rows, columns, or snake paths to create a simple transposition. Configure dimensions, padding, and text cleaning.
Message
Settings
Mode
Reading
Processed text
Result
Quick explanation
Enter a message, choose the number of columns and a reading order, then run the tool. Encoding fills the grid by rows before reading it along the selected path; decoding performs the reverse operation.
Try this too
Need a coordinate-based code?
Use the Polybius square to map every letter to a row and column in a 5 × 5 grid.
Additional information
Tool currently being tested and written
Grid code is currently being tested and written.
A cleaner, clearer and more polished version will arrive on the site soon. It will replace this temporary block with notes that match the actual behavior of the tool.
Until then, you can use the tool interface, keeping in mind that its presentation and explanations may still evolve.
Limits and reuse
AppErgo tools are provided free of charge for practical and informational purposes. Although care is taken in their design, a result may be incomplete, unexpected or incorrect. Before relying on a result for any important use, check it using an appropriate method.
To report a bug in the tool, you can use the dedicated bug report form.
Results produced by AppErgo tools may be copied and reused freely. When publicly reusing a result, a method or an AppErgo page, a link to the relevant page is appreciated.
Unless otherwise stated, AppErgo texts, images, visual elements, scripts, templates and internal components remain the property of AppErgo.
For any other request, you can contact the webmaster.