FLV to MKV Converter

Convert your FLV files to MKV in seconds — free and online.
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Select or drag & drop files to begin.

How to convert FLV to MKV?

Just three simple steps — no downloads, no hassle.
Click the “Choose files” button and upload your FLV file.

You can drag and drop it too — we’re flexible!

Choose “MKV” as the output format, then click “Convert”.

We’ll take care of the rest — it only takes a few seconds.

All done! Your file is now in MKV format.

Just download it and enjoy. Easy, right?

At a glance: FLV to MKV

🔁 Conversion: FLV to MKV ⏱ Average conversion time: 20 seconds 💳 Cost: Free 📂 Category: Video ✳️ Extensions: .flv → .mkv 📏 Max file size: 75 MB 👩‍💻 Works on: Windows, Linux, macOS, iOS, Android

About FLV

FLV is a video format developed by Adobe for streaming video using Flash Player. It was once widely used on the web but has largely been replaced by MP4 and HTML5 video formats. FLV files support video, audio, and text like subtitles.

About MKV

MKV is a flexible, open-source multimedia container format. It can hold video, audio, subtitles, chapters, and metadata in a single file. MKV is widely used for high-definition movies and streaming, supporting multiple audio tracks and subtitle languages.

Why Convert FLV to MKV with MiConv?

Because it's quick, easy, and made for people like you.

No software needed

Convert your .flv files to .mkv right in your browser — no downloads, no installs. Everything happens securely in the cloud.

Your files stay private

We never store your files permanently. Only you can access them, and they’re automatically deleted from our servers within 2 hours.

Fast, free, and effortless

Turn your FLV files into MKV in just a couple of clicks. No registration, no limits — and it’s 100% free.

More FLV conversions you can try

Explore other formats you can turn your FLV files into — it's easy!

FLV to MKV Converter Quality Rating

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Rated 9.36/10 based on 15450 reviews
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