Batch File Renamer vs Filera

Batch File Renamer is a free, open-source web app for preparing new names for multiple files and previewing the results. It processes files locally in the browser, does not upload them and leaves source files unchanged. Ten operations cover find and replace, prefixes and suffixes, case changes, numbering, date and time, regular expressions, cleanup and extension changes. Presets handle numbering, date prefixes, filename cleanup, music files, episode formatting, lowercase conversion and replacing spaces. Users can save reusable operation chains in browser local storage and undo or redo changes across 50 operation states. Validation flags invalid or empty names, reserved Windows device names, trailing spaces or periods, names over 255 characters and duplicate selected outputs. Export creates a ZIP archive containing selected valid files as renamed copies rather than changing originals on disk. Modern browsers support file import; folder picking is best in Chromium-based browsers, and save-picker support varies. The MIT license permits use, modification and distribution subject to its notice. The web plan costs nothing and needs no installation or registration.

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.