Bulk Rename Utility vs reNamerX

Bulk Rename Utility renames multiple files and entire folders in Windows using configurable rules. It can add, replace, or insert filename text, change case, alter extensions, and add dates or automatic numbers. A detailed preview shows proposed names before changes are applied. Rules can use photo EXIF data, MP3 ID3 tags, and Windows file properties. For more involved tasks, it supports regular expressions, JavaScript renaming, filters, subdirectory processing, and CSV input lists. The utility can create an undo batch file and save a log of renaming activity. Optional PDF and MediaInfo extensions expose document and audio/video metadata as tags, and require version 4.1.0.0 or newer. A portable version is available. The maker lists Windows 11, 10, 8, and 7, Windows on ARM, and specified Windows Server versions. Personal home use is free. Listed paid options include Home / Academic at $24.95 a month for one computer and a Commercial license at $92.95 as a one-time purchase per computer.

reNamerX is a free desktop application for batch file renaming on Linux, macOS, and Windows. It applies text operations, case transformations, and sequential numbering to groups of files, and can process hundreds using consistent rules. A live preview shows the proposed filenames before changes are applied. More advanced options include regular expressions, date and time insertion, metadata such as creation date and size, and reusable rule presets. Users can select individual files or all files in a directory. Batch changes can be undone with Ctrl+Z, and the app also supports redo. Its interface has dark and cyberpunk theme options. The project is distributed under the MIT License, and the repository provides Windows MSI and EXE installer options. Windows installation requires Windows 10 or newer, a 64-bit operating system, at least 50MB of free disk space, and 4GB of recommended RAM. Building from source requires Node.js 16 or newer, npm or yarn, Rust and Cargo, and Git.