Tool recommendations are off topic on RPG.SE.
In general, "shopping" questions are considered bad form Stack Exchange-wide. The reasoning can be found in:
Our history and game-recs
As is well known, we tried to make game recommendation questions on topic for a while here. We figured the lifespan of an RPG is a lot longer than a computer product, so some of the "Shopping" critiques didn't apply, and that with strict application of Good Subjective, Bad Subjective, such a thing could work.
It did not. Given feedback on how those questions were doing, we had to rescind the exception. In practice, the community failed to enforce the game-rec rules and therefore game-recs turned into poor Q&As in a variety of ways (subjective, not paying attention to requirements, "here's the name of a game I heard of" answers).
Tool-recs are only different in a bad way
We have to ask ourselves, why do we think this will work for tool-recs and not game-recs (besides wishful thinking)? Tool-recs are different from game-recs - but unfortunately are mostly different in the way that makes the general SE guidance apply directly to them! They are much more time-limited (tools go obsolete or get Cease & Desisted or change), draw link-only answers, generate near-infinite lists... Things that we hoped didn't apply as much to games, but certainly do to tools.
Let's look at the real extant tool-rec questions. Click through them. Most are links to Web sites with very little effort put into explaining how they fit the OP's requirements (in most cases, the requirements are minimal anyway). A good number of the linked tools/sites are dead. Also look at the tools questions, as most of those are really tool-recs not labeled as such.
In any event, trying to keep them but putting a set of question type specific rules in place has failed despite our best efforts to do that for game-recs, so I think that any question type requiring guidance other than normal SE guidance is bound to similarly fail, especially when it's an even smaller case.
But what can we do?
The trick is to do as described in this answer to the shopping list meta.SE post - ask a question about your problem, and be willing to accept a variety of answers - technique, tool, etc. - to solve your problem. In many cases asking for a tool is an XY problem anyway.
Observe this recent question, which I specifically re-edited to this format. It could be a game-rec question (NPC supplements), or it could be a tool-rec question (NPC generators), but it's best as a problem - I need a bunch of various Iron Kingdoms NPCs, how do I do that? In fact the partial comment-answers are urging gm-techniques answers (if only people would answer in answers and not comments, sigh). This is how we should handle these. Pure shopping lists - off topic. A RPG problem that might could be solved by a tool - on topic.
Some good older tools questions are of this sort - like What tools or strategies have you found useful when not all players can be in the same physical space? and How do you track the PCs' reputation? and How can I make things easier on my dyslexic and high-functioning autistic players? I submit that the better tools questions could easily be of this form, while the worse ones that are just "hey I want an android app for X" turn into bad lists of answers exactly like those in the examples of why shopping questions are bad. The good thing is that turning these into good questions is standard SE guidance that people from other SEs should be well familiar with - "no shopping," "ask about your real problem."
I'm not going to go on at more length - all the rest of the backing detail should be apparent from reading the links already in this post.
We know we'll continue to get tool-rec type questions. Make this process go easy by doing a quick edit instead of closing and all when the only difference between the question being OK and not OK is changing "I want a tool for this" to "I want a tool/technique/fix for this" in a whole question... (assuming you have the rep, and put this meta's link in the edit reasons bar). On historical tool-recs, same thing, we don't have to go on a pogrom to close them, just edit them slightly or heck just answer from the frame of "well here's an alternate approach to X that isn't a tool per se..."