Pepys
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MKV to SRT Subtitles

Upload an MKV video and download a ready-to-use .srt subtitle file with accurate timestamps in minutes.

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Accepts an MKV (Matroska) video file (and other video/audio formats) · returns a downloadable, timestamped .srt subtitle file.

60 min free · no card required · we never train on your audio

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Trusted by 100k+ usersRated 4.9 out of 5 by 100k+ users

How do I make an SRT from an MKV?

To make an SRT from an MKV, upload the MKV video to Pepys and it transcribes the speech, then exports a timestamped .srt subtitle file you can download in minutes, in 99+ languages. The same transcript also exports to VTT, TXT, and DOCX. Your first 60 minutes are free, no card required.

How mkv to srt works

01

Upload your MKV

Drop in the MKV file – Pepys reads the audio track and prepares it automatically.

02

AI transcribes it

The speech becomes clean, timestamped text segmented into subtitle cues in minutes.

03

Download your SRT

Edit any line inline, then export the result as a .srt file (or VTT, TXT, DOCX, JSON).

MKV is the go-to container for high-quality video, but most editors and players still want subtitles as a separate .srt file. Pepys reads the audio inside the MKV, transcribes it, and segments the result into properly timed subtitle cues – so you get a clean, downloadable .srt without hand-typing timestamps or wrestling with a converter.

The .srt is a sidecar file you drop next to the video or load into your player or editor; Pepys does not burn subtitles into the video itself. Your first 60 minutes are free, you pay only for what you transcribe, credits never expire, and we never train on your audio.

Clean paragraphs. No more um's and ah's.

The left is what Pepys hands back – logical paragraphs with the filler stripped out, punctuated and readable. The right is the raw, one-line-per-segment dump most transcribers leave you with.

reel-voiceover.mp4

um so yeah everyone keeps telling you to like lead with your best line right but uh honestly if you give away the whole answer in the first second you know there's basically no reason for anyone to keep watching so the hook isn't kind of the smartest thing you say it's like a loop you open that they need to close and um that's the part that actually keeps people around

Raw
BeforeAfter
  • Proper SRT cues with accurate start/end timestamps – no manual timing

  • Reads the audio inside the MKV directly – no pre-conversion needed

  • Edit lines before export, and grab VTT or plain text from the same pass

  • 99+ languages, auto-detected · we never train on your audio · credits never expire

Any language – 99+ detected automatically

Works with the platforms you live in.

Paste a link from YouTube, TikTok, Instagram, Facebook, Spotify, or Apple Podcasts – or drop in any audio or video file. We transcribe it once, then you export it however your workflow needs.

  • YouTubeYouTube
  • TikTokTikTok
  • InstagramInstagram
  • FacebookFacebook
  • SpotifySpotify
  • Apple PodcastsApple Podcasts
  • or any file

Export to any format

  • TXT
  • Markdown
  • DOCX
  • PDF
  • SRT
  • VTT
  • JSON

Timestamps, speaker labels, and subtitle timing carry through to every export.

Mkv to srt – questions, answered

How do I make an SRT from an MKV?

Upload your MKV on this page – the first 60 minutes are free, no card. Pepys transcribes the audio and exports a timestamped .srt subtitle file you can download in minutes.

Does this add the subtitles into the video?

No. Pepys produces a downloadable .srt sidecar file you load alongside the MKV in your player or editor – it does not burn captions into the video itself.

Can I edit the subtitles before downloading?

Yes – review and edit any line inline first, then export. You can also export to VTT, TXT, Markdown, DOCX, PDF, or JSON from the same transcript.

Will the timestamps stay accurate on a long file?

Yes. Long MKV files are chunked and stitched automatically, so subtitle cue timings stay correct from start to finish.

Can I make subtitles in another language?

Language is auto-detected across 99+ languages, and you can translate the finished transcript before exporting it as an SRT.

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Mkv to srt – free to start

Pay as you go – credits never expire, nothing to cancel. Or start free with 60 minutes, no card.