Two Unity editor packages, MIT licensed. Sonar is an in-editor profiler overlay; Fold is a level packer that turns a scene of prefabs into one streamable chunk.
Frame timing, GC spikes and draw calls drawn straight into the game view. No profiler window, no attach step.
Bakes a scene of prefabs into a single addressable chunk with a generated stream manifest.
Both run on 2021 LTS through Unity 6, on every render pipeline. Tested by people who file good issues.
MIT. Take it, ship it, do not email me about it.