Convert MP4 to SRT Subtitles

Turn any MP4 video into a ready-to-use SRT subtitle file. Jackob.ai transcribes the audio track, splits it into properly timed subtitle segments, and lets you download the result as SRT or VTT — the two formats accepted by YouTube, Vimeo, LinkedIn, and every major video platform.

Because you also get the full transcript, one upload produces your captions, a searchable text document, and show notes material at the same time.

Drag & drop your audio or video file here

or click to browse — MP3, WAV, M4A, MP4, MOV and more

Free plan available · No credit card required · Files are never used to train AI

How it works

1
Upload your MP4
Drag and drop the video file. Other video formats are supported too.
2
AI creates timed subtitles
The audio is transcribed and segmented into subtitle cues with correct timing.
3
Download SRT or VTT
Export the subtitle file, plus DOCX, PDF, or TXT of the full transcript.

Why Jackob.ai

SRT and VTT export

Both major subtitle formats, compatible with YouTube, Vimeo, and social platforms.

98 languages

Caption videos recorded in nearly any language your audience speaks.

Transcript included

The same upload gives you a full text transcript for show notes, articles, and SEO.

Synchronized review

Check subtitles against the audio with the built-in synchronized player before exporting.

Sample SRT output

1
00:00:00,000 --> 00:00:03,200
Welcome back to the show. Today we're talking

2
00:00:03,200 --> 00:00:06,840
about how small teams can compete with much

3
00:00:06,840 --> 00:00:09,150
larger companies using better workflows.

Simple, transparent pricing

Start free. Upgrade when you need more hours — no per-minute surprises.

Plus

$15/mo

20 hours of transcription per month

Pro

$29/mo

50 hours of transcription per month

Premium

$49/mo

100 hours of transcription per month

See full plan details

Your recordings stay private

Files are processed securely and are never used to train AI models. You control retention and can delete your recordings and transcripts at any time.

Frequently asked questions

How do I get an SRT file from an MP4 video?

Upload the MP4 to Jackob.ai. The AI transcribes the audio and generates a timed subtitle file that you can download in SRT or VTT format.

Will the subtitles work on YouTube?

Yes. SRT and VTT are the standard subtitle formats accepted by YouTube, Vimeo, LinkedIn, and most video platforms and editing tools.

Can I generate subtitles in languages other than English?

Yes — Jackob.ai supports 98 languages, so you can subtitle videos recorded in most languages spoken worldwide.

Can I edit the subtitles before downloading?

You can review the transcript with the synchronized audio player and correct any words before exporting the subtitle file.

Try it with your own recording

The best way to judge transcription quality is with your own audio. Upload a real file on the free plan — no credit card required.

Get started free