Convert FLAC to AAC Online
FLAC compresses audio without any loss of quality, typically reducing file size by 40–60%. AAC is the successor to MP3, offering better efficiency at the same bitrates. AnyConvert converts FLAC to AAC securely without installing desktop software.
FLAC to AAC Converter
Convert your FLAC files to AAC format quickly and easily. Upload your file and download the result.
Max file size: 50MB
Why convert FLAC to AAC?
Switching from FLAC helps you avoid file sizes remain larger than aac or mp3, especially for speech. AAC excels at superior quality to mp3 at bitrates of 128 kbps and below, making it a better fit when clients or platforms expect streaming services like apple music and youtube.
Advanced Audio Coding also offers supports multichannel audio and higher sample rates up to 96 khz. That means your converted files stay useful for streaming services like apple music and youtube and broadcast applications requiring efficient multi-channel audio.
FLAC strengths
- Lossless compression that preserves original master quality
- Supports metadata, album art, and cue sheets
- Fast decoding makes it suitable for streaming and playback
AAC advantages
- Superior quality to MP3 at bitrates of 128 kbps and below
- Supports multichannel audio and higher sample rates up to 96 kHz
- Mandatory audio codec for many streaming standards and mobile OSes
Key differences
| Feature | FLAC | AAC |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency / Alpha | Not applicable | Not applicable |
| Typical file size | Moderate (lossless compression) | Compact (lossy compression) |
| Best suited for | Archiving CD collections and high-resolution downloads and Audiophile music libraries and media servers | Streaming services like Apple Music and YouTube and Broadcast applications requiring efficient multi-channel audio |
| Standard | Open, royalty-free specification | Open, royalty-free specification |
Before you convert
- Keep a backup of your original file before converting so you can roll back if needed.
- Review known pain points: Limited support on some car stereos and legacy portable players. Adjust your source file accordingly.
Quality tips
- Start with a high-quality setting (85–90%) and only reduce it if file size targets demand it.
- Pick a bitrate that matches your destination: 128 kbps for speech, 192–256 kbps for music, 320 kbps for archive copies.
- Download the result immediately and open it in the target application to verify everything matches expectations.
Where AAC fits best
Once you have the converted file, you can plug it straight into streaming services like apple music and youtube, broadcast applications requiring efficient multi-channel audio, and mobile apps that demand high quality with compact file sizes. AAC is the format teams expect in those environments, so you spend less time re-exporting or explaining compatibility issues.
Common AAC use cases
- Streaming services like Apple Music and YouTube
- Broadcast applications requiring efficient multi-channel audio
- Mobile apps that demand high quality with compact file sizes
Tools that open AAC
- ffmpeg (libfdk_aac)
- Adobe Audition
- Logic Pro
Frequently asked questions
Does converting FLAC to AAC reduce quality?
Yes, AAC uses lossy compression. Start with the highest quality setting available and compare the converted file against your original. If you need a perfect copy, keep the FLAC source as an archive.
Which bitrate should I pick for AAC?
Match the bitrate to the destination. 96–128 kbps is fine for speech, 192 kbps balances quality and size for music, and 256–320 kbps keeps critical mixes transparent.
Is there a file size limit for converting FLAC?
Yes—uploads up to 150 MB convert reliably in the browser. For larger assets, split them into smaller segments first so the process stays responsive.