File Renamer review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

File Renamer is a free, libre, open-source desktop application for batch-renaming files on Linux and Windows. It is aimed at desktop users who need local file renaming through a graphical interface rather than a hosted service. The app lists files before changes are applied, previews proposed renamed results, and then performs the rename operation. Its portable installation option works without root or administrator permission, while pip-based installation offers another route for users who prefer Python package installation. The project is distributed under the GNU GPL v3 or later.

The strongest fit is a simple, local workflow where visibility before execution matters. File listing and rename preview give users a clear way to review proposed results before applying them, and the Windows/Linux scope supports desktop environments across both platforms. The published product details also describe documented testing on Fedora, Ubuntu, and Windows 11. Because it is free and open-source, it suits users who want a lightweight tool they can install portably or through pip without moving files into an online system.

File Renamer is narrower than a full-featured automation-oriented renaming suite. Its documented scope does not establish regex rules, metadata-based renaming, folder renaming, or undo support, so users with advanced rule-building or recovery requirements should consider another product. It is a practical choice for straightforward batch changes that benefit from a desktop file list and preview step; it is less suitable when renaming depends on media metadata, complex pattern logic, directory handling, or reversible operations. Choose it for minimal portable batch renaming on Linux or Windows, especially when open-source licensing and local operation are priorities.

File Renamer pros and cons

• Where it wins
  • Free and open-source under GNU GPL v3 or later
  • Previews proposed renamed results before applying changes
  • Portable installation and pip-based installation options
• Where it doesn't
  • Documented rename-rule depth is limited
  • No documented metadata-based renaming workflow
  • No documented undo support

File Renamer fact sheet, pricing and score →

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update