I'm on a Macbook Pro with Mac OS Sierra (10.12.5) and I'm looking for software which can identify, manage and delete duplicate files stored in different folders on my mac. Library folders too, if possible. The software must do this for photos (jpg, png, psd) and other documents (txt, docx, pdf) etc.
I don't mind paying for it (but, preferably free), as long as it's not too much. No monthly payment and a maximum of ±€30,-.
If you need any more specs, feel free to ask :-)
Edit: I've come across MacPaw Gemini (and 'CleanMyMac', but that's another topic), but I've heard mixed reviews about them (such as it not being as good for your system as it proposes to be). Any comments on those programs?