A simple, flexible and powerful interface.
Can recursively process sub-directories.
Can process folder names.
Powerful real-time preview.
Log past renaming operations, with an option to export into text file.
Multiple undo ability (undo past renaming operations).
User can save custom filters configurations as presets.
Order for applying filters can be manipulated.
Can create batch file with renaming commands.
Automatic procession ablity from batch files using command-line parameters.
Drag and drop files from Windows Explorer directly to MFR's rename list.
Support for files on network.
Errors console.
All filters may be applied on full filenames, extensions ot initials.

Case manipulation filters:
- UPPER CASE, lower case, Capital Case, Sentence Case, tOGGLE cASE, WEiRd CaSe.
- Can define after which characters to capitalize.
- Uppercase initials.
- Configurable casing dictionary (Custom casing for specific words).
Spaces manipulation features:
- Define custom space character to seperate words.
- Maintain spaces around specific characters (like "-").
- Maintain a space after specific characters (like ",").
- Seperate capitalized text and numbers into words.
- Remove all spaces.
- Shrink adjacent multiple spaces into a single space.
- Trim spaces at begining/end.
Trimming features:
- Trim first x characters.
- Trim last x characters.
- Trim all but first x characters.
- Trim all but last x characters.
- Trim from char x to char y.
- Remove duplicate occurances of specific characters.
Replacing features:
- Powerful string replacer (Find & Replace) which supports Regular Expressions and Formatting Parameters.
- Replace List feature for making multiple replaces on each filename.
Powerful file name formatter for parsing a format string with formatting parameters. Capable of adding the following strings to filename:
- Serial numbers through an advanced counter.
- Prefix or suffix.
- Filname's initial or extension.
- A token from filename through an advanced tokenizer.
- A substring from filename.
- File's parent directory at any level, disk label, drive's letter.
- File's time, date, size, with customizable date/time/size format.
- Random characters from a specific range.
- Part x of the filename (where parts are separated by a specific char).
- Current entry from a name list file for renaming from a text file.
- MP3 ID3 tag fields. Supports ID3v1.1 fields, all ID3v2 text fields, and general MP3 attributes: duration, bitrate and channel mode.
General features:
- Advanced string inserter (insert string custom position).
- Powerful string replacer (Find & Replace) which supports Regular Expressions and Formatting Parameters.
- Leading 0's fixer (unify length of numbers by adding leading zeros).
- Parenthesis stripper.
MP3 ID3v1.1 and ID3v2 tag setter and remover. Supports any text field in ID3v2 tag. Supports setting non-empty text fields only.
File's atrributes setter.
File's date and time setter.