Convert AVI to FLAC
Extract the audio from your AVI video files and save it as FLAC, directly in your browser.
How to convert video to audio in 3 steps
Choose a AVI video file.
Click convert to FLAC.
Download your FLAC audio.
Format descriptions
AVI — AVI is one of the oldest video containers, developed by Microsoft. It is widely compatible but offers less efficient compression and larger files.
FLAC — FLAC is an open-source lossless audio format that compresses without losing quality, roughly halving file size. Ideal for audio archives.
Technical comparison: AVI vs FLAC
Technical breakdown of the AVI and FLAC specifications: compression, colour, transparency and animation support.
| Property | AVI | FLAC |
|---|---|---|
| Specification | AVI (Audio Video Interleave) | FLAC (Free Lossless Audio Codec) |
| Media type | Video | Audio |
| Compression | Lossy · DivX / XviD / MPEG-4 + PCM | Lossless · FLAC |
| Color space / bit depth | 24-bit YUV | 16/24-bit up to 192 kHz |
| Transparency | Not applicable | Not applicable |
| Animation | Yes (animated) | No (static) |
| Best for | AVI is one of the oldest video containers, developed by Microsoft. It is widely compatible but offers less efficient compression and larger files. | FLAC is an open-source lossless audio format that compresses without losing quality, roughly halving file size. Ideal for audio archives. |
What happens when converting AVI to FLAC?
The AVI data is decoded inside your browser with WebAssembly and re-encoded to the FLAC specification, so no file is ever uploaded to a server. Both formats rely on comparable compression, so file size and perceived quality stay in the same range. AVI supports animation while FLAC does not, so only the first frame is kept. Audio is re-encoded with the FLAC codec while keeping the original duration, so audio and video stay in sync.
Frequently Asked Questions
What is video to audio conversion?
Video to audio conversion extracts the sound track from a video file, for example from AVI to FLAC, keeping only the audio content.
Are my video files uploaded?
No. This tool processes video files directly in your browser. Your video files are never sent to a server.
Which video formats are supported?
This tool converts the audio of AVI video files to FLAC, all in your browser.
Is it really free and unlimited?
Yes, the tool is completely free and you can convert as many videos as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Which format will the result be in?
The converted file will always be in FLAC format, ready to download and use.
About the video to audio converter
Extract and convert the audio from your AVI videos to FLAC for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
See also:
- Video to Audio Converters
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