Drop your resources folder: the files, textures and archetypes two resources stream under one name, the ones named like the game's, and which copy wins.
Loading Name Clash Check…
FiveM streams files by name. When two resources stream a sparrow.ytd, or an addon is named like one of the game's own files, the game uses one copy and the other's models turn white or pink, swap or never spawn. It works on one server and breaks on another, because the copy that wins is the one whose resource started last.
Name Clash Check reads your whole resources folder in your browser (nothing is uploaded) and lists every name streamed twice, the files named like GTA V's, the archetypes defined in two .ytyp files, and repeated data_file and meta entries. Drop server.cfg with it to see which copy the game uses. Each finding comes with its fix.
You get: A report made in your browser, with a fix for each clash, as CSV: nothing is uploaded.
Every tool is free to try: 5 exports a day, files up to 25 MB. The paid plans raise the limits. See the plans.

Server BudgetDrop your whole resources folder: the memory each resource streams, the oversized files FiveM warns about, and files streamed twice.
Missing Textures CheckFind the textures behind white, pink or purple models: every texture a resource's models take, looked for the way the game does, with a fix for each.
Map Conflict CheckDrop your resources folder: the map resources that clash, with the game or each other. Same map replaced twice, overlapping MLOs, archetypes defined twice, collisions cut into each other.
YTYP EditorOpen a .ytyp and change its archetypes: LOD distance, dictionaries, flags explained one by one, bounds, extensions (ladders, fire, seats), interiors' entity sets and time cycles.