Universal compact form utility for limited data paths
Move more information with fewer characters.
MicroGrams is a compact messaging tool for exchanging structured information with shared form templates. By transmitting encoded responses instead of full text, operators can move reports, requests, status updates, and other field data using significantly fewer characters.
MicroGrams can be used over any text-based communications path where message size matters, including amateur radio digital modes, packet networks, mesh systems, satellite links, email gateways, and low-bandwidth communications networks.
Important
Encoded answers only decode correctly when both stations have the same current form template, including the same form ID, question order, answer codes, and prompt IDs.
Open the Tool
Fill, encode, and decode MicroGrams from a dedicated working interface.
Launch the MicroGrams ToolDownload for Offline Use
Use MicroGrams locally in the field or off-grid by downloading the standalone tool page.
Download offline toolForm Mirror
Browse available forms and verify that all stations are using the same form versions.
View formsLearn More About MicroGrams
MicroGrams builds on compact form workflows first developed and widely used within the JS8Spotter and JS8Call community through the work of KF7MIX. The original documentation remains a useful reference for how these workflows are established and utilized in those systems.
Read the KF7MIX compact forms guide
The primary JS8Spotter form repository is maintained by SITREPNET. MicroGrams may mirror selected forms and host community-developed forms, but it is not the official JS8Spotter repository.
Demonstration videos
MicroGrams walkthroughs and field examples.
Introduction to MicroGrams
What MicroGrams are, why compact forms matter, and how to decode a received string.
Using MicroGrams Across Modes
Examples for JS8Call, APRS, VarAC, Meshtastic MeshCore, Winlink, packet, and other constrained text paths.
Offline and Field Use
Downloading the offline tool, loading forms, building forms, and using it without internet.