ECDIS User Chart generator from Navigation Warnings
Each NAVAREA is read only from its own official sources and cross-checked; old and cancelled warnings are removed only when the cross-check is complete. Areas without a working source never borrow another area's data — paste the text from your NAVTEX / SafetyNET receiver instead (step 2).
Paste NAVAREA text (Inmarsat-C / NAVTEX printout, coordinator page, downloaded file). Several messages at once are fine. If it contains the "warnings in force" message, I will offer to remove stored warnings of that area that are no longer listed.
Point/Radius → positions (radius uses the first). Area → polygon. Line → connected in order.
Shapes detected from the text are marked "auto" — check them against the message before sailing; you can change a shape's type with the drop-down.
Files list every warning shown above, all NAVAREAs together — like the Excel tool.