Agent Ransack is not available for Mac but there are some alternatives that runs on macOS with similar functionality. The most popular Mac alternative is 
DocFetcher, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Agent Ransack and nine of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Agent Ransack are 
grep (Free, Open Source), The Silver Searcher (Free, Open Source), ripgrep (Free, Open Source) and 
ack (Free, Open Source).
Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently. If you're looking for more info about Agent Ransack like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
DocFetcher is a portable German/English open source desktop search application. It allows you search the contents of documents on your computer. - You can think of it as Google for your local document repository.
grep is a command-line utility for searching plain-text data sets for lines matching a regular expression.
Silver Searcher is a code search tool similar to ack that claims to be much faster. It's implemented in C and has some extra features such as ignoring files per .hignore, .gitignore contents.
ripgrep is a command line search tool that combines the usability of The Silver Searcher (an ack clone) with the raw speed of GNU grep. Why should I use ripgrep? * It can replace both The Silver Searcher and GNU grep because it is faster than both. (N.B. It is not, strictly speaking, a "drop-in" replacement for both, but the feature sets are far more similar than different.
Ack is designed as a standalone (one perl file) replacement for 99% of the uses of grep. ack is intelligent about the files it searches. It knows about certain file types, based on both the extension on the file and, in some cases, the contents of the file. Ack ignores backup files and files under CVS and .svn directories. It also highlights matches to help you see where the match was. Ack uses perl regular expressions (PCRE).
Find Any File searches your local disks for files by name, creation or modification date, size, or type and creator code (not by content, though). As there are other tools with a similar search operation, here are the special features unique to Find Any File: Has a new hierarchical view of the found items, making it much easier to browse 100s of items. Can run as root user, finding really any file on your disk, even those that are hidden from normal users.
iFileX's functionality and design is based on Mac OS early-era file search tools such as Find File and Sherlock, now replaced by Spotlight.
Let DEVONsphere Express keep track of related emails, articles on the same subject, and similar web pages. Discover the hidden connection between seemingly unrelated files. Find other items related to what you're working on Search like Spotlight on steroids Context-aware; always focuses on what you do Runs as a menu extra, always available
TextSeek helps you search document contents for Windows and MacOS within seconds, inlcuding PDF, Word, Excel, Powerpoint and other formats. The core feature is that TextSeek can perform search character-by-character with no omission, which is quite different from common indexing technology.
