AudioCraft — The complete guide to convert & cut.

Version 5.0.0 — Batch conversion and waveform cutting for your Mac.

1. Overview

AudioCraft is a macOS application with two tools in a single window. Use the segmented picker at the top to switch between modes:

• Converter — Batch-convert audio files between formats with full control over codec, bitrate, sample rate, and channel layout. Completely free.
• Cutter — Cut a single audio file into segments on a visual waveform, with silence detection, volume adjustment, and fade effects. Export requires premium.

Each mode keeps its own state, so switching back and forth does not lose your work. Everything runs locally on your Mac.

2. Converter — Batch Format Conversion

Adding Files

• Drag & drop — Drop audio files anywhere on the window.
• Add button (⌘O) — Open the file browser.
• Music Library — Import tracks from your Music app.
• Recent — Reopen recently used files from the dropdown.

To remove files, select them in the list and click Remove.

Supported Input Formats

AudioCraft reads virtually every common audio format: MP3, AAC, M4A, WAV, AIFF, FLAC, OGG/OGA, Opus, WMA, APE, AC3, E-AC3, DTS, AMR, CAF, AU, and audio tracks inside MP4, QuickTime, and Matroska (MKV/MKA/WebM) containers.

Output Formats

Use the Format picker in the toolbar. Nine output formats are available:

Advanced Format Settings

Click the gear icon next to the Format picker to configure:

• Codec — Available codecs for the selected format.
• Sample rate — 8,000 to 96,000 Hz, or "same as source".
• Bitrate mode — CBR (constant) or VBR (variable).
• Bitrate — Codec-specific range (e.g. MP3: 32–320 kbps).
• Channel layout — Auto, Mono, Stereo, 2.1, 3.0, 5.1, or 7.1.

Click Apply to All to copy settings to every file in the list.

Per-File Customization

Each file row has its own gear icon for independent format settings and a pencil icon to edit the output file name.

Converting

Select files and click the circular Convert button. During conversion:

• A progress ring shows on each file being processed.
• A clock icon marks files waiting in the queue.
• Green checkmark = success (click to reveal in Finder).
• Red exclamation mark = failed (click for log).

Click the button again to stop. If you close the window while exporting, AudioCraft warns you first.

3. Cutter — Cutting and Trimming Audio

Loading a File

The Cutter works on one audio file at a time. Load via drag-and-drop, the Open button, or Music Library import. You can also open a saved .msfcut project.

The Waveform

The loaded file is displayed as a visual waveform. Colored overlays mark your segments, and a red cursor shows the playback position. Click anywhere to move the cursor.

Playback Controls

• Play (play.circle) — Plays the entire file from the cursor position.
• Play segment (play.rectangle) — Plays only the selected segment with effects applied, so you can preview exactly what will be exported.
• Pause (pause.circle) — Pauses playback.

Creating Segments

• + Add — Adds a new segment manually. The first segment covers the full file.
• Detect — Automatically splits the file at silent passages using silence detection.

Silence Detection Settings

Editing Segments

• Rename — Segment names become the exported file names.
• Adjust start/end — Type exact times in the inline fields, or drag handles on the waveform.
• Drag to move — Drag a segment body on the waveform to reposition it.
• Reorder — Drag rows in the segment list to change order.
• Preview — Click the play icon on each row.
• Delete — Click the trash icon.

Volume and Fade Effects

Each segment has its own controls:

• Volume — 0% to 200% with a live dB readout.
• Fade In / Fade Out — Enable and set the duration in seconds.
• Apply to All Segments — Copy current volume and fade settings to every segment.

Exporting

1. Choose the output Format (same 9 options as the Converter) and output folder.
2. Choose export mode: Per segment (each becomes its own file) or Merge into one file.
3. Click Export.

After export, a success sheet lists the created files with a Show in Finder button. On failure, Show Log... helps diagnose the issue.

4. Cutter Projects

Your cutting work can be saved as a .msfcut project file (JSON format), preserving the loaded file reference, all segments, and their settings.

• File > New — Start a new project.
• File > Open... — Open an existing .msfcut project.
• File > Open Recent — Reopen a recently used project. Use Clear Recent to empty.
• File > Save (⌘S) — Save to the current project file.
• File > Save As... (⇧⌘S) — Save to a new file.

If a project has unsaved changes, the window title shows the edited indicator and AudioCraft asks whether to save before closing.

5. Keyboard Shortcuts

6. Free Features & Premium

Converter is free

The Converter is completely free — batch format conversion works without any purchase, subscription, or activation. No limits, no watermarks.

Cutter is premium for export only

You can load files, view waveforms, create and edit segments, use silence detection, apply effects, and preview everything for free. Only exporting segments requires a premium membership.

7. Troubleshooting

• A conversion or export failed — The item shows a red exclamation mark. Open the log with ⌘L. Common causes: corrupted source files, inaccessible output folder, or insufficient disk space.
• Can't find the log files — Use Help > Show log folder in Finder.
• A file won't import — Ensure it's a supported audio format. DRM-protected tracks cannot be imported.
• Silence detection finds too many / too few cuts — Adjust the Threshold and Min Duration in the silence detection settings.
• Can't export from Cutter — Exporting requires a premium membership. Load, preview, and editing are all free. Subscribe via Help > Subscription... to unlock export.