Add subtitles to MKV

Add subtitles to an MKV online.

Upload your MKV below. Get timed text, fix names in the editor, then export SRT or VTT after you sign in.

  • Free to try
  • No signup
  • Works in browser

Upload your MKV

MKV video (MP4 and other formats work too). Transcribe, then export captions.

  • Free to try
  • No signup
  • Speaker labels

Overview

People search for ways to add subtitles to MKV when a Matroska export from OBS, HandBrake, or a download needs captions. You do not need a full subtitle suite for a first pass. Upload the MKV, get a timed transcript, fix names in the editor, then export SRT or VTT.

This page runs File Transcribe's upload-to-captions workflow on your MKV. Proofread the draft in the browser. Guests can try without signup. Free accounts export SRT and VTT.

Why caption the MKV itself?

Burn-in tools assume you already have a caption file. Most creators still need the speech-to-text step. Starting from the MKV keeps timing aligned with the audio track.

When to use this

  • OBS and screen capture

    OBS often records to MKV for crash safety. Caption the file before or after remuxing to MP4.

  • YouTube uploads

    Export SRT or VTT and attach captions in YouTube Studio after you have a playable upload.

  • Archived lecture or webinar MKVs

    Turn long Matroska archives into searchable text and soft captions without a meeting bot.

  • Cross-platform video packs

    MKV holds multiple tracks. Transcribe the main audio, then attach soft subs in your player or editor.

Why File Transcribe

  • Upload-first

    Drop the MKV in the browser. No calendar bot.

  • Timed transcript

    Click lines to jump playback while you fix words.

  • SRT and VTT export

    Available after free signup from the transcript editor.

  • Guest try

    Test accuracy on a short clip before you commit.

How it works

  1. 1

    Upload the MKV

    Use the upload zone on this page.

  2. 2

    Transcribe

    Get timed segments from the audio track.

  3. 3

    Export captions

    Sign in free, download SRT or VTT, and attach them in your editor or host.

Related tools

Frequently asked questions

How do I add subtitles to an MKV online?

Upload the MKV on this page, wait for the timed transcript, edit if needed, then sign in free to export SRT or VTT.

Can I burn subtitles into the MKV file here?

This page creates soft subtitle files (SRT/VTT) you attach in YouTube Studio or your editor. Burn-in into the video pixels is a separate ffmpeg job and is not this tool.

Is adding subtitles to MKV free?

Yes to try within guest limits. Free accounts get SRT and VTT export.

Does this work for OBS or HandBrake MKV exports?

Yes. Many screen recorders and remux tools export MKV. Upload here, then export captions for YouTube or your NLE.

What if I have an MP4 instead?

Use Add subtitles to MP4. Same upload-to-SRT path.

Need unlimited transcription?

Upload on the homepage for free, edit in the browser, export TXT or sign in for subtitles.

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