File Renamer vs Renamer.ai

File Renamer is a free desktop application for batch renaming files on Linux and Windows. It is described as Free, Libre, Open Source Software under the GPL-3.0 license, with a free plan priced at free. Its documented workflow covers listing files, previewing changes, and viewing renamed files. The project wiki provides portable installation instructions for Linux and Windows and says this method needs no root or administrator permission. It also documents installation through pip with `pip install io.github.flossapps.file-renamer`, followed by the `file-renamer` command to start the app. Portable installation is reported as tested with Fedora KDE Plasma Desktop, Ubuntu Desktop, and Windows 11. Ubuntu 24.04.4 LTS requires `libxcb-cursor0`. Other desktop systems, including macOS, may work through pip but are untested.

Renamer.ai analyzes file contents with AI and OCR to create descriptive filenames. It handles more than 30 formats, including documents, spreadsheets, images, presentations, vector files, and email files. Users can rename batches, build templates from details such as document type, date, company or person names, invoice information, and project details, or set Magic Folders to rename files when they arrive. The service supports more than 20 languages and can detect a file's language automatically. Listed platforms include macOS, Windows, web, and API; desktop plans include batch renaming and Magic Folders. The free Starter plan allows 25 renames per month, while paid plans range from 200 files per month on Pro to 5,000 on Ultimate. Pro costs $9.95 a month. The web demo has a 100 MB maximum file size. Web uploads are stored on EU servers for up to 24 hours; files processed through the desktop app are not stored on the service's infrastructure. The company says data is encrypted in transit and at rest, and file contents are not used to train AI models.