avi to flv Converter
Convert AVI video clips into FLV animations or files locally in your browser. Absolutely secure—no files are uploaded to any server.
Select video source & options
Upload a .avi video or paste a URL, then configure your conversion parameters.
Import Video
Select a local AVI file or paste a direct video link. The file size is processed fully locally.
Customize Parameters
Set starting time, output resolution width, and frame rates. Cap duration to optimize performance.
Download Result
FFmpeg converts frames locally into the selected FLV format for instant saving.
About the Conversion
AVI to FLV Conversion
This tool converts AVI (Audio Video Interleave) files to FLV (Flash Video) format fully in your browser. A legacy multimedia container format introduced by Microsoft. It stores video data using various codecs but suffers from lack of modern compression standard capabilities, resulting in relatively large file sizes. By converting to FLV, you take advantage of outputs a legacy flash video file for older archive and playback workflows.
Privacy-First Processing
Unlike traditional online converters that upload your media files to third-party servers, this converter runs 100% locally in your browser using WebAssembly technology. Your files are never exposed, sent over the network, or saved elsewhere.
Source format
What is AVI?
AVI is a legacy Microsoft multimedia container that can store video and audio encoded with many different codecs.
Advantages
- Supported by many older Windows applications and workflows.
- Can preserve high-quality video when paired with an appropriate codec.
Limitations
- Files are often much larger than equivalent MP4 or WebM files.
- Its aging design is poorly suited to web playback and modern streaming.
Output format
What is FLV?
FLV is a legacy Flash Video container that was commonly used for online video before HTML5 video became standard.
Advantages
- Useful for preserving or extracting video from older Flash-era archives.
- Can be compact for older web delivery workflows.
Limitations
- Modern browsers no longer support Flash playback.
- It has limited compatibility with current devices, editors, and platforms.
Help improve this converter
Real user feedback will appear here as it is collected. Share what worked, what did not, and the browser or stream type you used so the tool can become more reliable.
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