How to Convert AVI to FLV — Quick & Free
Fast, instant AVI to FLV conversion. No signup required. Just drop your .avi file and get .flv in seconds.
Batch Settings
Generation loss — quality may degrade
AVI uses lossy compression, and so does FLV. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Some metadata may not survive
Your AVI file may contain RIFF chunks metadata. FLV has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
What compression artifacts to expect
FLV lossy compression can produce blockiness, banding. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
还在为AVI视频文件太大，不方便分享或在线播放而烦恼吗？尤其是在我们日常使用微信、微博等平台时，文件格式和大小往往是我们需要优先考虑的问题。FLV格式以其出色的压缩效率和广泛的兼容性，成为了网络视频传输和播放的理想选择。它能让您的视频文件变得更小巧，加载更迅速，无论是上传到视频网站，还是通过手机快速分享给亲友，都能拥有流畅的体验。将AVI转换为FLV，不仅能节省存储空间，更能让您的精彩瞬间在移动设备和各种平台上轻松传播，让您的创作无拘无束。告别漫长的等待和卡顿，享受即时分享的乐趣吧。
- 微信视频分享
- 手游精彩回放上传
- 直播平台推流优化
在中国大陆及东南亚地区，FLV曾是直播和在线点播平台的主流格式，至今仍有许多老旧系统或特定应用场景沿用，确保了其在这些环境下的良好兼容性和播放表现。
About AVI to FLV Conversion
Short answer: yes, you can convert AVI to FLV online for free, and some quality differences may occur depending on the format types. Just upload your .avi file to CocoConvert, pick FLV as the output, and click Convert. The whole process takes seconds.
Now for the details. AVI (Audio Video Interleave) is Microsoft's legacy video container, widely compatible but often large. FLV (Flash Video) is a legacy streaming format — converting to MP4 is recommended for modern use. Converting between these two formats lets you convert between formats quickly.
Full Name: AVI uses Audio Video Interleave, while FLV uses Flash Video. Compression: AVI uses Lossy, while FLV uses Lossy. Color Depth: AVI uses 8-bit, while FLV uses 8-bit.
Your AVI file is decoded and re-encoded as FLV. AVI uses lossy compression, and so does FLV. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Common misconception: ""I'll convert to FLV and then back to AVI — it'll be the same"" — in reality, each lossy conversion cycle permanently degrades quality. going avi → flv → avi will produce a noticeably worse file than the original. always keep your source file.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert AVI to FLV
- 1
1. Upload AVI
Drop your .avi file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select FLV
Choose .flv from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .flv file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert AVI to FLV
Your AVI video is transcoded — video and audio streams are decoded and re-encoded into the FLV container. This is a lossy process that takes time proportional to the video duration.
Your AVI file is demuxed — video, audio, and subtitle streams are separated
The video stream is decoded frame-by-frame, then re-encoded with FLV-compatible codecs (typically H.264 for MP4)
The audio stream is decoded and re-encoded (or copied if the codec is compatible)
Subtitle and chapter data is preserved where the target supports it
Streams are muxed into the FLV container and the file is saved
AVI vs FLV — Detailed Comparison
| Feature | .AVI | .FLV |
|---|---|---|
| Full Name | Audio Video Interleave | Flash Video |
| Compression | Lossy | Lossy |
| Color Depth | 8-bit | 8-bit |
| HDR Support | No | No |
| Typical File Size | 100–500 MB per minute (uncompressed can be much larger) | 30–100 MB per minute |
| Platform Support | Universal | Very Limited |
| Browser Support | none | none |
| Year Created | 1992 | 2002 |
| Open Standard | No | No |
Should You Convert AVI to FLV?
When to Convert
- ✓When you specifically need a FLV file for your workflow
When NOT to Convert
- ✗You're converting just because the file "seems old" — re-encoding lossy-to-lossy always degrades quality
Common Mistakes When Converting AVI to FLV
"I'll convert to FLV and then back to AVI — it'll be the same"
Each lossy conversion cycle permanently degrades quality. Going AVI → FLV → AVI will produce a noticeably worse file than the original. Always keep your source file.
Frequently Asked Questions
Is AVI to FLV conversion free?
Yes. CocoConvert offers free AVI to FLV conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is AVI to FLV conversion?
Most files convert in 2–10 seconds depending on size. Large video files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded AVI file and the converted FLV file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting AVI to FLV lose quality?
AVI uses lossy compression, and so does FLV. Converting means decoding and re-encoding — each cycle can permanently degrade quality. Convert from the original source file whenever possible.
Can I convert FLV back to AVI?
Yes, CocoConvert supports FLV to AVI conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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