Convert AVI to FLV
Free, fast and secure — convert AVI to FLV right in your browser.
Convert AVI to FLV for wider compatibility
Converting AVI to FLV gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when AVI will not play nicely everywhere.
How to convert AVI to FLV
- 1 Drop your AVI file into the converter above.
- 2 It is converted to FLV automatically — no settings to fiddle with.
- 3 Download your new FLV file instantly.
AVI vs FLV
| Feature | AVI | FLV |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | Yes | Yes |
| MIME type | video/x-msvideo | video/x-flv |
| Best for | Legacy desktop video — usually converted to MP4 for sharing and streaming. | Rescuing old Flash video by converting it to MP4 or WebM. |
About the formats
AVI video
AVI is a long-standing Microsoft container. It is widely readable on desktops and can store high-quality video, but its files are large and it lacks modern streaming features.
Strengths
- Broad desktop compatibility
- Simple, well-understood format
- Can hold high-quality video
Limitations
- Large file sizes
- No modern streaming features
- Weak mobile/browser support
Best for: Legacy desktop video — usually converted to MP4 for sharing and streaming.
Flash video
FLV is the old Flash video container. Once dominant for web streaming, it is now obsolete and almost always needs converting to a modern format like MP4.
Strengths
- Small files for its era
- Plays in legacy Flash players
- Common in old web archives
Limitations
- Obsolete — Flash is discontinued
- No support on modern devices
- Lower quality than modern codecs
Best for: Rescuing old Flash video by converting it to MP4 or WebM.