Convert AVI to FLAC online in seconds — free, with no sign-up. FLAC is lossless and ideal for archiving and audiophile listening. Your files are encrypted and deleted automatically after 24 hours.
AVI
Audio Video Interleave — An older Microsoft container with large file sizes and limited modern support.
FLAC
Free Lossless Audio Codec — Open-source lossless audio that's 40–60% smaller than WAV with zero quality loss.
How to convert AVI to FLAC
- 1Upload your AVI file
Click “Choose a file” or drag and drop your AVI file onto the page — no sign-up or email needed.
- 2Convert to FLAC
FLAC is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your FLAC file
Your FLAC file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
AVI vs FLAC
| AVI | FLAC | |
|---|---|---|
| Full name | Audio Video Interleave | Free Lossless Audio Codec |
| Type | Video | Audio |
| Compression | Lossy | Lossless |
| Best for | legacy video; usually converted to MP4 or WebM | archiving and audiophile listening |
Frequently asked questions
Does converting AVI to FLAC lose quality?
Your AVI file is already compressed, so converting to lossless FLAC can't restore detail that was discarded earlier — but it won't lose any more. The FLAC file matches your AVI file exactly.
What's the difference between AVI and FLAC?
Audio Video Interleave (AVI) is lossy and best for legacy video; usually converted to MP4 or WebM. Free Lossless Audio Codec (FLAC) is lossless and best for archiving and audiophile listening. Convert AVI to FLAC when you need a audio for archiving and audiophile listening.
Is the AVI to FLAC converter free?
Yes — converting AVI to FLAC is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my AVI files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert AVI to FLAC on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert AVI to FLAC?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert AVI files to?
Besides FLAC, you can convert AVI to AAC, FLV, GIF, JPG, M4A, MKV and more — see the full list of AVI conversions below.
Other conversions
Last updated July 2026