Convert MKV to FLV
Free online MKV to FLV converter — no signup, no watermark
Convert MKV (Matroska Video) files to FLV (Flash Video) format online for free. Our MKV 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 MKV to FLV in 4 steps
- 1
Upload your MKV file
Drag and drop your MKV 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 MKV to FLV
Click the convert button. Our converter processes your MKV 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 MKV stays untouched and we delete uploaded files within an hour.
Why convert MKV to FLV?
MKV is an open-source container format that can hold an unlimited number of video, audio, subtitle and metadata tracks in one file. It's the go-to format for high-quality movie storage and Blu-ray rips. 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 MKV 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
MKV vs FLV: side-by-side
MKV
Pros
- + Supports unlimited tracks and subtitles
- + Open source and royalty-free
- + Excellent quality preservation
Cons
- − Not natively supported on iOS or Safari
- − Larger files than MP4
- − Limited 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
MKV to FLV — Frequently Asked Questions
Is converting MKV to FLV free?
Is converting MKV to FLV free?
Yes, our MKV 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 MKV to FLV?
Will I lose quality converting MKV to FLV?
Our converter uses high-quality encoding settings to preserve as much of the original MKV quality as possible in the FLV output. For lossless results, choose the "high quality" preset.
How long does MKV to FLV conversion take?
How long does MKV to FLV conversion take?
Most MKV 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 MKV file?
Is it safe to upload my MKV 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 MKV to FLV on mobile?
Can I convert MKV to FLV on mobile?
Absolutely. Our MKV 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 MKV to FLV?
What's the maximum file size for MKV to FLV?
You can convert MKV files up to 2GB to FLV for free. For larger files, contact us about our batch and premium options.
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