MCForms Tool
Fill, encode, and decode compact form messages.
Use this page as the primary working surface for MCForms. Select a shared form, fill it out, create a compact payload, transmit it through your chosen text path, and decode received payloads using the matching form definition.
1. SelectChoose a shared form.
2. FillEnter brief field values.
3. EncodeCreate the payload.
4. TransmitSend over your text path.
5. DecodePaste received traffic.
6. VerifyCheck form/version/content.
Important: Sender and receiver must use the same form definition and version. The raw MCForms payload starts with
F!. Optional station or group addressing is added only to the transmit line. MCForms.org generates datecodes using UTC.Typical character planning targets:
APRS message: about 67
SMS GSM: 160
SMS Unicode: 70
Meshtastic conservative: about 200
General low-bandwidth: about 240
Loading packaged forms…
For location fields, use state, tactical area, or Maidenhead grid when possible. Put town, address, landmark, or extra detail in the comment only when needed.
Paste a full line or only the payload beginning with
F!. Decode requires the matching form in the current library.