Convert AVI to FLV
Free online AVI to FLV converter — no signup, no watermark
Convert AVI (Audio Video Interleave) files to FLV (Flash Video) format online for free. Our AVI to FLV converter runs entirely in your browser — just drag in your file, click convert, and download the result. No software to install, no account required, and your files stay private.
How to convert AVI to FLV in 4 steps
- 1
Upload your AVI file
Drag and drop your AVI file into the converter, or click to browse from your device. We support files up to 2GB.
- 2
Choose FLV as the output format
FLV is pre-selected. Optionally adjust quality, resolution or bitrate if your file needs custom settings.
- 3
Convert AVI to FLV
Click the convert button. Our converter processes your AVI file and produces a high-quality FLV output, usually in under a minute.
- 4
Download your FLV file
Once conversion is complete, download your FLV file. Your original AVI stays untouched and we delete uploaded files within an hour.
Why convert AVI to FLV?
AVI is a legacy Microsoft container format that preserves high video quality with minimal compression. It remains popular for archival and Windows-based workflows where compatibility with older software matters. FLV was the dominant format for web video during the Adobe Flash era. While Flash is deprecated, FLV files still exist in many legacy systems and require conversion to modern formats for playback. Converting from AVI to FLV is useful when you need converting legacy flash content or want to take advantage of small file sizes.
Top reasons to switch to FLV
- Converting legacy Flash content
- Recovering old web archives
- Maintaining older streaming systems
AVI vs FLV: side-by-side
AVI
Pros
- + High video quality
- + Wide Windows compatibility
- + Simple structure
Cons
- − Very large file sizes
- − Poor support on modern mobile devices
- − No native streaming support
FLV
Pros
- + Small file sizes
- + Once-universal web compatibility
Cons
- − Adobe Flash is deprecated
- − No modern browser support
- − Should be converted to MP4 or WebM
AVI to FLV — Frequently Asked Questions
Is converting AVI to FLV free?
Is converting AVI to FLV free?
Yes, our AVI to FLV converter is 100% free. There are no hidden fees, no signups required, and no watermarks added to your converted FLV files.
Will I lose quality converting AVI to FLV?
Will I lose quality converting AVI to FLV?
Our converter uses high-quality encoding settings to preserve as much of the original AVI quality as possible in the FLV output. For lossless results, choose the "high quality" preset.
How long does AVI to FLV conversion take?
How long does AVI to FLV conversion take?
Most AVI files convert to FLV in 30 seconds to a few minutes, depending on the file size, duration, and your internet connection. Larger files take longer.
Is it safe to upload my AVI file?
Is it safe to upload my AVI file?
Yes. All uploads use encrypted HTTPS connections, files are processed on isolated servers, and converted FLV files are automatically deleted within one hour of conversion.
Can I convert AVI to FLV on mobile?
Can I convert AVI to FLV on mobile?
Absolutely. Our AVI to FLV converter works in any modern browser on iPhone, Android, iPad, Windows, macOS and Linux — no app install required.
What's the maximum file size for AVI to FLV?
What's the maximum file size for AVI to FLV?
You can convert AVI files up to 2GB to FLV for free. For larger files, contact us about our batch and premium options.
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