reNamerX

Overview

reNamerX is a free desktop utility for applying consistent naming changes across batches of files. It is best suited to people who need flexible rules on Linux, macOS, or Windows without paying for a renaming tool. Its live preview and undo controls help keep batch changes deliberate, though it does not rename folders themselves.

Key features

Basic rules cover text operations, case changes, and sequential numbering, while regular expressions extend the app to more complex transformations. It can also use file metadata such as creation date and size, with date and time insertion documented in the user guide. That range should cover both routine cleanup and more tailored naming schemes.

Before applying a rule, a live preview shows the resulting filenames; after a batch operation, Ctrl+Z can undo the change, and the app also offers redo. These safeguards matter when a rule affects hundreds of files. Users can pick individual items with Browse Files or select files in a directory with Browse Folder, but directory selection is not the same as folder renaming: reNamerX does not rename folders.

Reusable rule presets help when the same naming pattern returns regularly. The interface supports dark and cyberpunk themes, a choice of presentation rather than a change to what the rules can do.

Pricing

reNamerX is free: the Free plan costs nothing and is distributed under the MIT License. There are no paid plans to weigh against the free offering in the stated pricing model, making it a straightforward option for users who want desktop batch renaming without a software charge.

Platforms

reNamerX is available for Linux, macOS, and Windows. Windows requires Windows 10 or newer, a 64-bit operating system, at least 50MB of free disk space, and 4GB of recommended RAM. The repository provides Windows MSI and EXE installers. Building from source requires Node.js 16 or newer, npm or yarn, Rust and Cargo, and Git; users needing installation help are directed to open a GitHub issue.

Who it's for

Choose reNamerX for repeatable file-renaming jobs that benefit from regex, metadata, or reusable presets, especially when a preview and undo are important safeguards. Its cross-platform availability suits households or teams using different desktop systems. It is not the right fit when the task is renaming directories rather than files.

Pros and cons

• Pros: Free, MIT-licensed availability across Linux, macOS, and Windows makes it accessible without a paid tier.
• Pros: Regex, metadata, date and time insertion, and reusable presets offer more flexibility than basic text and numbering rules alone.
• Pros: Live preview and undo/redo give users a way to review and recover from batch changes.
• Cons: It renames files, not folders, so directory-naming workflows need another tool.
• Cons: Windows users need a 64-bit Windows 10-or-newer system and should account for the stated disk and recommended memory requirements.

Alternatives

File Renaming Software is the broader category for comparing tools. Among the alternatives, choose Nomina or PBRenamer if you want another free option spanning Linux, macOS, and Windows; PBRenamer is GPL-3.0 software. Bulk Renamer is also free across those platforms and is described as open-source under MIT, with no account or watermark.

RenameKit may suit users willing to pay once for a lifetime license: it costs $9.99, paid once, includes a three-day full-feature trial, then caps batches at 20 items and allows one device at a time, transferable. Ant Renamer is a free Windows-only alternative. ReNamer is Windows-only and has a free non-commercial Lite tier limited to five rules and five presets, alongside a Pro tier priced at $29.95, paid once.

Advanced Renamer is an option for macOS or Windows users whose batches fit its free limits of 10,000 files and five methods; its Personal plan offers unlimited files and methods with custom pricing. Renamer.ai is another freemium option for web, Windows, or macOS.

Verdict

reNamerX is a strong fit for desktop users who need free, repeatable file renaming with flexible rules and a preview-and-recovery path before and after batch changes. Its main appeal is that combination across three desktop platforms without a paid tier. Look elsewhere if renaming folders is essential or if Windows system requirements rule it out.