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qaac

qaac is a command-line tool developed by nu774 for encoding and decoding audio using the Advanced Audio Coding (AAC) format. It supports various audio sources including WAV, FLAC, and MP3, and utilizes the Fraunhofer FDK AAC encoder for high-quality audio compression. It supports gapless decoding of MP3 files encoded by iTunes and decoding of opus in MP4 containers.
Latest: 2.88 GitHub
Last checked: Jun 9, 2026 12:10am
Rank: 5689/15140
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Overview

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License: Public DomainWinget: Available

Version & Lifecycle

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Current: 2.88 N-2: 2.85 Avg cadence: Every 191 days

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

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Release Notes & Updates

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Also known as

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qaacnu774 qaac

Packaging Notes

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Requires Apple Application Support included in iTunes or QuickTime on Windows

Notes

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Latest release version 2.82 as of May 2025. Requires libopus >= 1.5 for opus decoding in MP4. Windows version depends on Apple Application Support from iTunes or QuickTime.