I'm not sure about all FLOSS Hex editors, but at least Veles, Catch22's HexEdit and ECSoftware's Hex Edit already has "binary templates".[0] JFTR, I suppose in

I'm not sure about all FLOSS Hex editors, but at least Veles, Catch22's HexEdit and ECSoftware's Hex Edit already has "binary templates".[0] JFTR, I suppose in many Hex editors devs just use other name than "binary template" for this feature.[1] [0] https://github.com/EUA/wxHexEditor/issues/20#issuecomment-568460132 https://github.com/EUA/wxHexEditor/issues/20#issuecomment-56... [1] https://en.wikipedia.org/wiki/Comparison_of_hex_editors https://en.wikipedia.org/wiki/Comparison_of_hex_editors