factorio_benchmarking_mods
A collection of mods to streamline Factorio benchmarking.
car-optimizer
Sets cars to inactive if there's no driver and they're not on a belt.
creative-world-plus
An empty world for design testing. Includes a map-gen preset for quickly turning everything off too.
logger
Makes a log to factorio-current.log every game tick. However with only 0.001 sec resolution this probably won't be useful for you.
old-recipe
Minimal mod to revert some of the 0.17 recipies back to their 0.16 counterparts. I recommend using Old Version Simulator instead.
region-cloner
Essentially takes the vanilla editor cloning functionality and adds some fixes and enhancements. Fixes include: train copying, circuit network signal copying, and correcting inserter pickup/drop targets. Documentation
region-cloner-legacy
A 0.16 compatible reimplementation of the editor cloning functionality. Will fix issues if they arise until 0.17 stabilizes. 0.17 Has stabilized, this is no longer maintained.