Tags are matched by position and tag number (nested tags are matched inside their parent), so a tag that moved to a different constructed template is treated as removed from one place and added to the other, not as "changed". Rows are highlighted when TLV A and TLV B differ — yellow for a changed value, green for a tag only in TLV B, red for a tag only in TLV A. "Decode bits" is available under each value exactly like the TLV Parser.

Comparing updates the page URL with both TLV values, so you can copy and share the link (or use "Copy shareable link") and whoever opens it sees the same comparison immediately. Since the data lives in the URL itself, nothing is sent to or stored on a server.