Convert AVI to FLV Online
Turn AVI files into FLV output online. The service is free, requires no account, supports batch queues, and limits server uploads to 100 MB per file. The conversion runs on the server in an isolated request. Keep the original file while you review the converted copy.
Convert .AVI to .FLV
Select a file to begin. Processing details and limits are listed below.
How to convert AVI to FLV
- 1
Add your AVI source
Add one or more AVI files to the queue. The uploader keeps batch items separate.
- 2
Set the FLV options
Set the available quality or format options, or keep the defaults for a first pass.
- 3
Convert and download
Run the queue and download the FLV files individually or together as a ZIP.
Audio Video Interleave vs Flash Video
| Spec | Audio Video Interleave | Flash Video |
|---|---|---|
| MIME type | video/x-msvideo | video/x-flv |
| Format type | video | video |
| Contents | Standard Windows video container. | Flash video container. |
About Audio Video Interleave
Standard Windows video container.
About Flash Video
Flash video container.
Why convert AVI to FLV?
- The conversion can reduce playback friction when the original codec or container is not supported.
- Keep the AVI master while using the FLV copy as the everyday delivery version.
- The result can be tested on the target device before a larger batch is processed.
- Sharing becomes simpler when the recipient does not need a specialist media player.
Will quality change?
Re-encoding can soften fine detail and change the file size. Keep the original master if editing or archival quality matters. Review the file in the application where it will be used.
Processing and limits
- Processing
- Server-side
- Engine
- FFmpeg
- Maximum size
- 100 MB per file on the server.
- Batch support
- Yes, multiple files can be queued; completed results can be downloaded as a ZIP.
- Quality controls
- Options can adjust output dimensions, audio bitrate.
The file is processed on the server because the conversion requires a server-side engine or a utility operation.
- AVI features without a direct FLV equivalent may not survive the conversion.
- Conversion cannot restore detail that the source format already discarded.
- Complex, encrypted, or unusually structured files may need manual review.
Platform compatibility
The output is a FLV file. Use an application or device that accepts that format, and test the result on the destination platform if compatibility is critical.
When not to convert
- If FLV support is uncertain on the destination device, test a sample before processing a large batch.
- Do not use a converted file as the legal or signed original when signatures or metadata must be preserved.
- Do not overwrite the source; keep both versions until the output has been approved.
Frequently asked questions
- What is the easiest way to convert AVI to FLV?
- Upload a AVI file, choose the available FLV options, run the conversion, and download the result. The tool is free, supports batches, and accepts server uploads up to 100 MB.
- Does Convert AVI to FLV require an account?
- It is free, requires no account, and adds no watermark. Server uploads are limited to 100 MB per file, and browser-first paths are limited by device memory.
- Will quality change?
- Re-encoding can soften fine detail and change the file size. Keep the original master if editing or archival quality matters. Review the file in the application where it will be used.
- Is my AVI file uploaded?
- Yes. This conversion uses a server-side engine, so the file is uploaded over HTTPS, processed in an isolated request, and removed after the result is produced.
- How do I process a batch?
- Queue multiple files, run them together, and download the finished results as a ZIP. Each server file is limited to 100 MB, and large batches may take longer.
- What can go wrong?
- Open the downloaded FLV file in the application or database you plan to use, check the structure against the source, and keep the original until the output is approved.