Transnomino review
A free macOS renamer with regex, metadata tokens, previews, recipes, and automation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Transnomino is a free macOS desktop utility for renaming multiple files and folders. It suits people who need more control than simple filename replacement, including workflows involving regular expressions, metadata, numbering, case conversion, diacritic removal, and path changes. Rules can target filenames, extensions, paths, or full paths, while filters can use regular-expression patterns. Folder renaming and undo support extend its use beyond individual files, making it a fit for organized media, document, and archive workflows on Mac.
Its standout strength is the range of rename inputs and transformations. Rules can draw from file, media, EXIF, GPS, and audio metadata, then combine multiple actions in sequence. Numbering options include sequential, hexadecimal, Roman, and random formats. A real-time preview shows the proposed changes before they are applied, while saved recipes make repeatable jobs easier to run. CSV conversion lookup import adds a way to map values during renaming, which is useful when filenames need to follow an external naming table rather than a single replacement rule.
Automation is another clear focus. Transnomino supports command-line automation alongside its desktop workflow, and its free pricing model keeps the full set of listed capabilities accessible without a paid tier. The main boundary is platform scope: it is available only for macOS, so it is not a fit for teams that need the same renaming workflow on other operating systems. The automation documentation also needs careful interpretation because the AppleScript material is older and support was temporarily removed in version 9.0. Choose Transnomino for free, repeatable Mac renaming with regex and metadata depth; choose an alternative for cross-platform use or AI features.
Transnomino pros and cons
- Where it wins
- Regex and extensive file, media, EXIF, GPS, and audio metadata tokens
- Live previews, folder renaming, filtering, and reusable recipes
- CSV lookup import and command-line automation support
- Where it doesn't
- Available only on macOS
- No AI features
- AppleScript documentation is older, with support temporarily removed in version 9.0
Transnomino fact sheet, pricing and score →
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