Audio Toolbox: Audio Tools

Private audio tools for everyday files: convert, extract, compress, trim, merge, and batch-process directly on your iPhone.

Audio Toolbox brings practical audio workflows together in one private, easy-to-use app.

Convert compatible audio to M4A/AAC, WAV, AIFF, CAF, or ALAC. Extract sound from MOV and MP4 videos. Make an audio file smaller with quality presets or fit it under a specific file-size limit. Trim with a real waveform, combine tracks in the order you choose, and process batches without uploading your recordings.

Everything happens on your iPhone:

• No account
• No uploads
• No advertising
• No tracking
• Originals are never modified

Free tools include conversion, basic video-to-audio, trim, compression, and batches of up to five files. Audio Toolbox Pro is a single lifetime purchase that unlocks target-size compression, merge, unlimited batch processing, advanced controls, and advanced output formats.

Supported input includes compatible AAC, M4A, MP3, WAV, AIFF, CAF, ALAC, FLAC, MOV, and MP4 files. Output includes M4A/AAC, WAV, AIFF, CAF, and ALAC. Compatibility depends on the actual media track, not only the file extension. Protected media cannot be processed.