AVI to FLV Converter

Convert AVI to FLV online. AVI and FLV are containers, while the video and audio codecs live inside them. Free batch processing with no signup or watermark.

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What changes when you convert AVI to FLV?

AVI and FLV are containers, while the video and audio codecs live inside them. Compatible streams may be copied; otherwise they are re-encoded for the selected FLV settings.

For the widest playback support, check that the selected video and audio codecs are accepted by the device or service that will receive the FLV file.

Add multiple videos and adjust the available video and audio codec settings before processing.

Open the finished FLV file and check fine details, layout and compatibility in the app where you plan to use it.

What is a AVI file?

AVI is a classic Microsoft video format from the 1990s. It offers broad compatibility and good quality but large, inefficient files, so it is mostly replaced by MP4 today - though it is still common in older archives.

How to open a AVI file

AVI opens in Windows Media Player, VLC and most desktop players; for phones and browsers, converting to MP4 is the reliable choice.

What is a FLV file?

FLV (Flash Video) was the format of web video during the Adobe Flash era. Flash is now discontinued and modern browsers no longer play FLV, so old FLV clips usually need converting to MP4 to be watchable today.

How to open a FLV file

FLV no longer plays in browsers; use VLC to view it, or convert it to MP4 for phones, editors and everywhere else.

Frequently asked questions

Is it free to convert AVI to FLV?

Yes. There is no sign-up, subscription or watermark on the converted file.

What happens to quality when AVI becomes FLV?

AVI and FLV are containers, while the video and audio codecs live inside them. Compatible streams may be copied; otherwise they are re-encoded for the selected FLV settings.

Which conversion options are available on this page?