Tools / File Converter / MKV to F4V Converter

MKV to F4V Converter

Convert MKV files to F4V. Free, without uploading.

This tool converts MKV files to F4V. MKV (Matroska) is a flexible container that can hold several audio and subtitle tracks. It is common on computers, but phones and TVs don’t always play it.

Flash MP4 video. The video is re-encoded. You choose the quality and resolution, and can trim it with a start and end time.

Conversion runs on your device; your file is never sent to a server. The components download once on first use, and later conversions start right away.

How to use

1. Choose the MKV video, drag it in, or paste its link.
2. Choose the quality and resolution; optionally enter trim times.
3. Press "Convert" and download the F4V file.

Frequently asked questions

How long does MKV to F4V take?

It runs on your device’s processor. On a computer a one-minute 1080p video usually takes a minute or two; lowering the resolution speeds it up.

Is there a file size limit?

No fixed limit; your device’s memory decides. Computers usually handle files up to 1–2 GB.

Is my file uploaded?

No. Your MKV file is converted to F4V inside your browser.