filoshi.com / formats / mkv-to-flv

Convert MKV to FLV

Extract audio, compress video, and change codecs natively without uploading. Convert MKV to FLV instantly.

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How to convert MKV to FLV for free

  1. 1
    Drop your MKV file
    Drag it onto the converter above, or click Browse Files to select it from your computer.
  2. 2
    Click Convert
    FLV is auto-selected. Hit Convert - FFmpeg.wasm processes everything locally in your browser.
  3. 3
    Download your file
    Your converted FLV file downloads instantly. Nothing was uploaded to a server.
Source Format

What is MKV?

Matroska Video (.mkv) - MKV is an open-source container that can hold virtually any codec, multiple audio tracks, subtitles, and chapters in a single file. It is popular among video enthusiasts.

Common use: Archiving media, storing multi-language video, Blu-ray rips

Output Format

What is FLV?

Flash Video (.flv) - FLV was the standard for web video during the Flash era. Since Flash was discontinued in 2020, FLV files are rarely created but many archives still contain them.

Common use: Playing back archived Flash-era content

Frequently Asked Questions

Is converting MKV to FLV free?+
Yes! You can convert MKV to FLV for free right in your browser using Filoshi's online converter. No signup or software download needed. For batch conversion of multiple files, the Filoshi desktop app is available for a one-time $14.90 payment.
Does converting MKV to FLV lose quality?+
It depends on the formats involved. If both MKV and FLV use lossless compression, no quality is lost. If the conversion involves a lossy format, some quality reduction may occur, but Filoshi uses optimized settings to keep quality loss minimal. The conversion runs entirely on your machine, so there are no server-side compression artifacts.
Can I convert MKV to FLV without uploading my file?+
Absolutely. Filoshi processes everything locally on your computer. Your MKV files are never uploaded to any server. Even the free browser converter runs entirely in your browser using WebAssembly, with no server involved.
How long does it take to convert MKV to FLV?+
Most conversions complete in seconds. Larger files (like high-resolution video) may take a bit longer depending on your computer's hardware. Since Filoshi runs locally, there is no upload or download wait time, which is significantly faster than online converters.
Can I batch convert multiple MKV files to FLV?+
Yes, the Filoshi desktop app supports batch conversion. You can drop an entire folder of MKV files, select FLV as the output format, and convert them all at once. Each file gets its own progress bar.

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Convert to FLV

Need batch MKV to FLV conversion?
The web converter handles 1 file at a time. Filoshi desktop converts unlimited files, runs offline, and supports 3,000+ formats.
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