I'm sure that something like this exists, need some help. I have a lot of old photos I'm trying to organize. The look like this right now -

photos
-- party
----- img01.jpg, img02.jpg etc
-- marriage
----- m1
-------- dsc100.jpg, dsc101.jpg etc
----- m2
-------- dsc100.jpg, dsc101.jpg etc (same name but different pics)

What I'd like to end up with is photos renamed with folder name, and date+tags from EXIF data, in those respective folders.

e.g.
party
---- party_2015_1205_0930pm.jpg

I've tried a few renaming tools but none could do this and I didn't find any way to do this in batch mode or from cmd line, as I have a huge number of photos to process.

Any suggestions?

I will not use a non-index based search program. All the arguments about indexes taking more resources are false. Think about it.

non-index search : has to examine all files on filesystem. If it's smart it uses NTFS MFT table (like in Everything). If you need to search contents, it has no option but to open every file and search through it, over and over again for each search.

index-based search: does the same process, but only once. After that it gets updated whenever the file changes, through a file change notification, which is very efficient. The cost is just keeping the index on disk which is trivial. The advantage - much less disk access and much higher speed.

The indexing service doesn't even do much compared to other similar services on the pc that also look at the file. e.g. every time a file is touched, many things like your AV/malware program will hook into it, read the file contents, compute its signature etc.

The answer is simple - Firefox can do anything the other browsers can, and much much more, thanks to its addons. You *might* see speed differences but these are highly dependent on hardware, plugins, no. of open tabs etc, and thus not really a reliable metric.

Chrome's only virtue is that it increased competition, but it also bought about horrid UI paradigms (tabs in title bar), insane numbering schemes etc.