LF addon like text mod
No such thing exists that I know of. If you go to the GW2 wiki site, you can find maps of Tyria and you can compare the maps to what you have unlocked. It’s actually pretty easy to find what you missed in most cases by really looking at the outskirts of the map for areas that are greyed out but look like they should still be part of the map.
The easiest way to get completion is to use the wiki. The wiki lists in each area the points of interest, way points and everything else.
But when you look at zones you’ll notice some areas have no points of interest in them, no way points, no vistas. They might have a jumping puzzle they might have nothing at all.
Those are the ones you’ve missed.
GW2 completion is nowhere near as tedious as GW1 map completion. You explore zones in large swatches rather than step by step. Also, I would be very cautious in using 3rd party software in this game, as ANet has always been very anti-mods.
I think the only reason the let TexMod slip by is because they new how ridiculous cartography was.