Looking for a Chunkbase-like map viewer that uses uploaded world files rather than world seed

I tried this same question in r/technicalminecraft last weekend but had no luck.

I'd like to be able to find biomes and structures in my bedrock realm with an interface like Chunkbase's seed map, but because this realm is several years old, any map generated from the seed would be unreliable for chunks that were first loaded on earlier Minecraft releases (which is the majority of chunks within a sizable radius from spawn). I know of programs like mcview, pixelmap, etc. that can generate such a map as an image, but it looks like their utility as tools to find biomes and structures is quite limited. Is there some webtool or software out there that could provide an accurate and searchable biome and structure map based on uploaded world files?

It'd be a sweet bonus if this map also showed player-built structures like mcview/pixelmap/etc. do, but that'd just be icing; my main priority is to use it for finding biomes and game-generated structures. Thanks in advance!

Oh, and again this is for a realm in bedrock edition, so unfortunately that means no mods, just external tools :/