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SocQ

Free MKV to MP4 Converter

Convert MKV and OBS recordings to MP4 in your browser.

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How to use this tool

To convert MKV to MP4, choose the MKV file and press Create file: SocQ turns it into an MP4 with H.264 video and AAC audio that TVs, iPhones, game consoles, video editors and YouTube accept. MKV (Matroska) is the flexible format used by OBS recordings, downloads and camera exports. The conversion runs in your browser, the file stays on your device and the MP4 has no watermark.

  1. 01

    Choose your MKV file

    Click Choose files and pick an MKV video. Videos up to 100 MB and 10 minutes are supported.

  2. 02

    Set the quality

    Quality 85 keeps a good balance. Raise it for gameplay or detailed footage you plan to edit.

  3. 03

    Convert and download

    Press Create file, check the MP4 in the player and click Download. The file keeps your original name with .mp4.

MKV vs MP4

MKV can hold almost any codec, several audio tracks, subtitles, chapters and attachments in one file, which makes it popular for recordings and archives. MP4 is the format far more devices and apps open. This tool re-encodes to H.264 and AAC, so MKV files with H.264, VP9, HEVC or FLAC inside all come out as a standard MP4.

OBS recordings to MP4

OBS often records to MKV because the file stays safe even if the app or computer stops mid-recording. Converting the recording afterwards gives an MP4 that Premiere Pro, DaVinci Resolve, CapCut, YouTube and TikTok accept. For a highlight clip, convert first and then cut it with the video trimmer, or crop it to 9:16 for Shorts with the crop video tool.

Audio tracks and subtitles

The MP4 carries the MKV's default audio track, converted to AAC at 128 kbps; in the example that is the full “Game + Mic” mix. For subtitles that show on every player and platform, burn them into the picture with the add subtitles to video tool and an SRT file.

Frequently asked questions

How do I convert MKV to MP4 for free?

Choose the MKV file, press Create file and download the MP4. No signup and no watermark.

Is my video uploaded?

No. The conversion runs in your browser and the file stays on your device.

How do I keep subtitles from an MKV?

Burn them into the picture: save the subtitles as an SRT file and add them with the add subtitles to video tool. The text then shows on every player, phone and platform.

What happens to multiple audio tracks?

The MP4 keeps the default audio track, converted to AAC at 128 kbps, which is the track players and platforms use.

Does converting MKV to MP4 keep the quality?

Yes. At the default Quality 85 the MP4 looks practically the same; choose 95–100 for gameplay you plan to edit.

How do I play an MKV on my TV?

Convert it to MP4. TVs and game consoles play MP4 with H.264 and AAC reliably, so the converted file plays from a USB stick or media server.

What are the size limits?

The converter handles videos up to 100 MB and 10 minutes. Conversion runs on your own device, so a long or HD video can take a few minutes; keep the tab open until it finishes. For long sessions, convert the highlight you need.

Can I convert 4K MKV files?

Yes, within 100 MB and 10 minutes. 4K takes longer to encode on your device, so short clips finish fastest.

Why does the first conversion take a moment longer?

The first run takes a moment to load the converter. Later conversions start right away.

Is the MKV to MP4 converter free?

Yes. No signup and no limit on the number of files.

For developers

Research gaming and long-form videos on YouTube

Uploading gameplay or recordings? The SocQ YouTube API returns public videos, channels, transcripts and comments, so you can see which games, titles and video lengths draw viewers.

Explore the API

youtube/videos

posts0.5 credits / result

youtube/channels

profiles0.26 credits / result

youtube/transcripts

posts0.5 credits / result

youtube/comments

comments0.3 credits / result

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