Bulk Rename Utility vs Bulk Renamer

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.

Bulk Renamer is a free desktop app for batch-renaming files in a chosen folder, available for Linux, macOS, and Windows. It displays a live preview of each proposed filename before applying the batch. Rename patterns can combine find-and-replace, prefixes or suffixes, sequential numbering, case conversion, and extension changes; find-and-replace accepts plain text or regular expressions. The app loads files from the selected folder but does not include subfolders. Before a batch runs, it checks whether destination names duplicate one another or already exist on disk, and a conflict blocks the operation. Undo reverses the latest successful batch only. That history is kept in memory and does not remain after the app closes. Bulk Renamer is open-source under the MIT license and its free plan costs nothing, with no account required. The maker notes that an unsigned app may trigger standard Gatekeeper or SmartScreen warnings on first launch until code-signing is set up. Infinite Creation describes its free tools as serving people who create, validate, publish, and teach media.