AVI to FLV Converter

How to Convert AVI to FLV Online

1. Upload Your AVI Files: Click "+ Add Files" to select AVI files from your computer, Google Drive, or Dropbox.
2. Choose Settings: Select compression method — quality preset (Highest to Lowest), target file size percentage, specific file size in MB, constant/variable bitrate, or CRF quality level. Optionally change video codec, audio codec, or resolution (preset like 1080p/720p, percentage, or custom width×height).
3. Convert and Download: Click "Convert" and download your FLV files.

What Is FLV?

FLV (Flash Video) was Adobe's web video format, dominant from 2005-2015. Flash Player was discontinued December 31, 2020, and all modern browsers removed Flash support in 2021.

Why Convert AVI to FLV?

The only remaining use cases are:

• Archived Flash-based e-learning platforms not yet migrated to HTML5
• Legacy content management systems with Flash video players
• Flash game preservation projects using standalone Flash emulators (Ruffle)
• Specific enterprise systems that still require FLV input

Competitors like changemyfile.com reports "FLV files are typically 40-60% smaller than equivalent AVI files while maintaining reasonable quality for web viewing." aconvert.com offers bitrate, aspect ratio, frame size, and frame rate controls. miconv.com notes FLV "has largely been replaced by MP4 and HTML5 video formats."

AVI vs FLV vs MP4

Frequently Asked Questions

Is it free?

Yes. Completely free with no watermarks, no sign-up required, and no file count limits.

Should I convert to FLV or MP4?

MP4 for everything modern. Only use FLV if your specific legacy system requires it.

Can I convert multiple files at once?

Yes. Upload multiple AVI files and convert them all with the same settings.

Does it work on mobile?

Yes. The converter works in any browser. However, FLV files won't play on mobile devices.