Bulk Renamer vs Filera

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.

Filera is a free batch file renaming tool for Linux, macOS, and Windows, designed to rename hundreds of files at once. A visual task pipeline offers find and replace, number sequences, dates, custom text, and case conversion, without scripting or regex. Before applying a rename, Filera shows old and proposed filenames side by side; files on disk remain unchanged until you apply the operation. Filters target files by name, type, date range, or size, and filtered files are skipped. Filera can walk directory trees and subfolders in one pass. You can rename files in place, copy renamed files to another directory, or move them. The app supports metadata-based renaming, but not regex renaming, folder renaming, or undoing changes. Built with Tauri and Rust, Filera is MIT licensed. Linux installation instructions list .deb packages for Debian and Ubuntu, and .rpm packages for Fedora and RHEL. Its Windows installer is not yet code-signed, so Windows Defender SmartScreen may show a warning.