regexxer is described as 'Nifty GUI search/replace tool featuring Perl-style regular expressions. If you need project-wide substitution and you’re tired of hacking sed command lines together, then you should definitely give it a try' and is an app in the development category. There are more than 25 alternatives to regexxer for a variety of platforms, including Windows, Linux, Mac, BSD and Flathub apps. The best regexxer alternative is Listary, which is free. Other great apps like regexxer are DocFetcher, Recoll, Agent Ransack and Clapgrep.
Listary is a revolutionary search utility for Windows that makes finding your files and launching applications blazing fast, for casual and power users alike!.
DocFetcher is an Open Source desktop search application: It allows you to search the contents of files on your computer. — You can think of it as Google for your local files. The application runs on Windows, Linux and macOS, and is made available under the Eclipse Public License.
This package is a personal full text search package which is based on a very strong backend (Xapian), for which it provides an easy to use and feature-rich interface.
Agent Ransack is a tool for finding files and information on your hard drive fast and efficiently. When searching the contents of files Agent Ransack also displays the text found. Users can then quickly browse the results without having to separately open each file!
Ever had a folder full of PDF files, where you knew, somewhere in there, is what you're looking for. But you did not know in which file. So you had to search each of them at a time…
grepWin is a simple search and replace tool which can use PCRE regular expressions to search for strings of text within files. grepWin adds an entry to the shell context menu to easily search selected folders.
dnGrep allows you to search across files with easy-to-read results. Search through text files, Word documents, PDFs, and archives using text, regular expression, XPath, and phonetic queries. dnGrep includes search-and-replace, whole-file preview, right-click search in File...
SearchMyFiles is a non-indexing portable alternative to the standard "Search For Files And Folders" module of Windows. It allows you to easily search files in your system by wildcard, by last modified/created/last accessed time, by file attributes, by file content...
AstroGrep is A Microsoft Windows GUI File Searching (grep) utility. Features include regular expressions, versatile printing options, stores most recent used paths and has a "context" feature which is very nice for looking at source code.
A fast real-time search engine for displaying regular expression matches (both file name and content) across multiple directories.
Find and Replace (FNR) is an open source tool to find and replace text in multiple files.
grep is a command-line utility for searching plain-text data sets for lines matching a regular expression.
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Searchmonkey doesn't do find-and-replace, it only does find.