Frankenfile

Frankenfile takes the tedium out of routine file work by letting you describe it rather than configure it. You point the app at a set of files, type something like "convert my images to circle thumbnails" or "split this PDF into pages 2-3, 4-8, and 9-10," and it figures out the sequence of operations needed to reach that result. The pitch is simple: the AI handles the decision-making, you stay in control of the outcome.

The app covers a broad spread of media. For images it handles format conversion (PNG, JPG, GIF and more), resizing, cropping, watermark overlays, and thumbnail generation. For video it can convert between containers, clip and trim footage, resize, and separate audio tracks. Audio work spans conversion, trimming, compression, and splitting a single track into pieces, while PDF support includes splitting, merging, and format conversion. Text-based sorting and sequential renaming round out the toolkit for people drowning in unsorted downloads.

A notable design choice is that processing happens on-device. Nothing is uploaded to a remote server, which matters if you work with client assets, personal media, or anything under confidentiality constraints. Frankenfile ships as a downloadable Mac application and, per its own site, is distributed on a freemium basis — you can evaluate it before committing to the paid tier.