The file list contains the names of all the files in the opened folder which match the selected file name filter (typically *.mp3 *.ogg *.opus *.dsf *.flac *.mpc *.aac *.m4a *.m4b *.m4p *.mp4 *.mp2 *.spx *.tta *.wv *.wma *.wav *.aiff *.ape). A single or multiple files can be selected. To select no file, click into the empty area after the listbox entries. The selection determines the files which are affected by the operations which are available by using the buttons described below.

Besides Name, also other columns Size, Type, Date Modified with file details can be displayed. Columns can be hidden by unchecking their name in the context menu of the list header. The order of the columns can be changed by drag and drop. The sort order can be toggled by clicking on the column header.

The values of the standard tags can also be displayed and edited in columns of the file list.

At the left of the names an icon can be displayed: a disc to show that the file has been modified or information about which tags are present (V1, V2, V1V2 or NO TAG, no icon is displayed if the file has not been read in yet).

Folders are displayed with a folder icon. If a folder is opened, its files are displayed in a hierarchical tree. By selecting files from subfolders, operations can be executed on files in different folders, which is useful if the music collection is organized with a folder for each artist containing folders for albums of this artist.

Clicking the right mouse button inside the file list opens a context menu with the following commands:

A playlist can be created empty or containing the tracks of a folder, see Create Playlist. The playlist file created in such a way can be edited by double click or using Edit from the file list context menu. A dialog with the entries of the playlist is shown. It is possible to open multiple playlists simultaneously.

New entries can be added by drag and drop from the file list, a file manager or another playlist. If an entry is dragged from another playlist, it will be moved or copied depending on the system. To invoke the other operation, respectively, the Shift, Ctrl or Alt (to copy instead of move on macOS®) key has to be pressed. Reordering entries within the playlist is also possible via drag and drop. Alternatively, entries can be moved using the keyboard shortcuts Ctrl+Shift+Up and Ctrl+Shift+Down (on macOS® Command has to be pressed instead of Ctrl). An entry can be removed using the Delete key.

Please note the following: To drag entries from the file list, they have to be held at the left side (near the icons), the same gesture at the right side will perform a multi selection, such an action is hereby still easily possible.

When a playlist has been modified, the changes can be stored using Save or discarded using Cancel. When the window is closed, a confirmation prompt is shown if there are unsaved changes.

Tracks selected in a playlist will be automatically selected in the file list, thereby making it possible to edit their tags.

To execute actions on a playlist, its file must be selected in the file list. Edit from the context menu will lead to the dialog described in this section, and Play will start the media player with the tracks from the playlist. User actions can act on playlists, for example Export Playlist Folder, which copies the files from a playlist into a folder.

The folder list contains the names of the folders in the opened folder, as well as the current (.) and the parent (..) folder. It allows one to quickly change the folder without using the Open command or drag and drop.

Column visibility, order and sorting can be configured as described in the section about the file list.

Shows information about the encoding (MP3, Ogg, Opus, DSF, FLAC, MPC, APE, MP2, MP4, AAC, Speex, TrueAudio, WavPack, WMA, WAV, AIFF), bit rate, sample rate, channels and the length of the file.

The Name line edit contains the name of the file (if only a single file is selected). If this name is changed, the file will be renamed when the Save command is used.

The Format combo box and line edit contains the format to be used when the filename is generated from the first or the second tag. The filename can contain arbitrary characters, even a folder part separated by a slash from the file name, but that folder must already exist for the renaming to succeed. The following special codes are used to insert tag values into the filename:

The format codes are not restricted to the examples given above. Any frame name can be used, for instance unified frame names like %{albumartist}, %{discnumber.1}, %{bpm} or format specific names like %{popm}.

It is possible to prepend and append strings to the replacement for a format code by adding them in double quotes inside the curly braces of a format code. These strings will only be put into the resulting string if the format code yields a nonempty value. For example, if the file name shall both contain the title and the subtitle, one could use %{title} [%{subtitle}] in the format string. But this would result in a string ending with [] if no subtitle frame exists for a file. In order to omit the brackets if no subtitle is present, %{title}%{" ["subtitle"]"} shall be used instead. This will omit the brackets, the leading space and the subtitle if not subtitle exists.

The list of available formats can be edited in the dialog which appears when clicking the Filename from tag button in the File tab of the settings.

A second Format combo box (with arrow down) is used to generate the tags from the filename. If the format of the filename does not match this pattern, a few other commonly used formats are tried.

Some commonly used filename formats are already available in the combo box, but it is also possible to type in some special format into the line edit.

The list of available formats can be edited in the dialog which appears when clicking the Tag from filename button in the File tab of the settings.

Internally, a regular expression is built from the format codes. If advanced regular expressions are required, the format to generate the tags from the filenames can be given as a complete regular expression with captures which are preceded by the format codes, e.g. to extract the track numbers without removal of leading zeros, a format like "/%{track}(\d+) %{title}(.*)" could be used.

From: Tag 1, Tag 2: Sets the filename using the selected format and the first tag or the second tag, respectively.

To: Tag 1, Tag 2: The tags are set from the filename. First, the format specified in Format is used. If the existing filename does not match this format, the following formats are tried:

If a single file is selected, the GUI controls are filled with the values extracted from the filename. If multiple files are selected, the tags of the files are directly set according to the filenames.

The line edit widgets for Title, Artist, Album, Comment, Date, Track Number and Genre are used to edit the corresponding value in the first tag of the selected files. The value will be changed when the file selection is altered or before operations like Save and Quit and when the corresponding check box at the left of the field name is checked. This is useful to change only some values and leave the other values unchanged.

If a single file is selected, all check boxes are checked and the line edit widgets contain the values found in the tags of this file. If a tag is not found in the file, the corresponding empty value is displayed, which is an empty string for the Title, Artist, Album and Comment line edits, 0 for the numerical Date and Track Number edits and an empty selected value for the Genre combo box. The values can be changed and if the corresponding check box is checked, they will be set for the selected file after the selection is changed. The file is then marked as modified by a disk symbol in the file listbox but remains unchanged until the Save command is used.

If multiple files are selected, only the values which are identical in all selected files are displayed. In all other controls, the empty values as described above are displayed. All check boxes are unchecked to avoid unwanted changes. If a value has to be set for all selected files, it can be edited and the check box has to be set. The values will be set for all selected files when the selection is changed and can be saved using the Save command.

The check boxes also control the operation of most commands affecting the tags, such as copy, paste and transfer between tags 1 and 2. To make it easier to use with multiple files where all check boxes are unchecked, these commands behave in the same way when all check boxes are checked and when all check boxes are unchecked.

From Tag 2: The tag 1 fields are set from the corresponding values in tag 2. If a single file is selected, the GUI controls are filled with the values from tag 2. If multiple files are selected, the tags of the files are directly set.

Copy: The copy buffer is filled with the Tag 1 values. Only values with checked check box will be used in subsequent Paste commands.

Paste: Pastes the values from the copy buffer into the GUI controls.

Remove: This will set all GUI controls to their empty values which results in removing all values. The saved file will then contain no tag 1.

The GUI controls function in the same way as described for the Tag 1 section, but the size of the strings is not limited.

For the tag 2 Genre you can also use your own names besides the genres listed in the combo box, just type the name into the line edit.

The tag 2 cannot only contain the same values as the tag 1, the format is built in a flexible way from several frames which are themselves composed of several fields. The tag 2 table shows all the frames which are available in the selected file.

Edit: This will open a window which allows one to edit all fields of the selected frame. If multiple files are selected, the edited fields are applied to all selected files which contain such a frame.

Add: A requester to select the frame type will appear and a frame of the selected type can be edited and added to the file. This works also to add a frame to multiple selected files.

Delete: Deletes the selected frame in the selected files.

Drag album artwork here is shown if the file does not contain embedded cover art. A picture can be added using drag and drop from a browser or file manager and will be displayed here. Picture frames can be edited or added by double clicking on this control.

Some files can have more than two tags, and a third tag section is visible. The following file types can have such a Tag 3 section:

The GUI controls work in the same way as in the Tag 2 section.

Kid3 can edit most of the frames for all of the supported file types. Some frames are accessed using unified names, so that they can be exchanged between files with different formats. Frames which are not unified can be accessed as format specific frames.