Also, like Name Mangler, ABFR lets you create "droplets" — little mini-apps that perform particular saved sets of renaming actions whenever you drop files on them — as well as save renaming actions as presets for later use. And like Name Mangler, ABFR lets you create sequences of renaming actions, so you could, say, add a number to the front of the name and then replace a string of text at the end in one fell swoop. More critically, both apps let you use regular expressions to find and replace text — a great tool for power users.
There are, however, some significant differences between the two programs. For example, when naming files sequentially, ABFR lets you sort twice (say, by creation date then by name); Name Mangler offers only single-pass sorting. When replacing text in a bunch of file or folder names, ABFR lets you specify which instance of a given string (the first, second, third, and so on) you want to look for. ABFR has options for removing vowels and trailing spaces, and though you could do the same in Name Mangler using regular expressions, ABFR makes it a bit easier. ABFR also makes it easier to remove characters by referencing existing text (for example, "the three zeroes that appear after IMG"), rather than just by position in the name. And ABFR provides a few more options when it comes to changing the case of a file or folder name: Expand CamelCase, Remove Diacriticals, Convert to Valid Mac OS 9 Name, and Make File Names Windows NTFS/SMB Compatible.
On the other hand, Name Mangler makes available a greater range of metadata for use in your new file names. You can, for example, incorporate a file's Spotlight comments or tags as part of the name; ABFR's metadata support is limited to things such as camera data and MP3 tags. Name Mangler also offers a nice history function, so you can look up and use previous operations.
More generally, Name Mangler's interface (like its name) is more succinct than ABFR's. ABFR just comes out and says, in comparatively plain English, what it's going to do: Add MP3/AAC tags to end, for example, rather than Name Mangler's somewhat more cryptic (if flexible) Compose option.
If you rename files a lot, and don't mind learning Name Mangler's ins and outs, it may be the better choice for you; and its Compose function, which makes a huge range of metadata available for naming purposes, does make it a more flexible, powerful tool. If you're an occasional user, however, who still needs a powerful tool, ABFR's forthrightness might work better for you.
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