Convert MP4 to WebVTT

Upload a MP4 file and get WebVTT subtitles in minutes. MP4 is the most common video container — the default export of phones, cameras, screen recorders, and editing software.

WebVTT (VTT) is the subtitle format built for the web — it is what HTML5 video players, streaming platforms, and modern web apps use for captions and accessibility. Jackob.ai transcribes the video with AI — including recorded meetings, webinars, YouTube videos, and screen recordings — and every upload can also be exported as DOCX, PDF, TXT, SRT, or VTT, so one transcription covers all your outputs.

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 file
Drag and drop the MP4 video — no conversion step needed, long recordings supported.
2
AI transcribes it
The language is detected automatically from 98 supported languages, speakers are labeled, and everything is timestamped.
3
Download the WebVTT
Review the transcript with the synchronized player, then export WebVTT subtitles — or any other format — with one click.

Why Jackob.ai

MP4 in, WebVTT out

Direct MP4 upload with instant WebVTT export — no converter tools in between.

Every format included

The same upload exports to DOCX, PDF, TXT, SRT, and VTT — switch formats without re-transcribing.

98 languages

Recordings in nearly any language are transcribed accurately — not just English.

Private by design

Your files are never used to train AI models, and you can delete them at any time.

Sample WebVTT output

WEBVTT

00:00:00.000 --> 00:00:03.200
Welcome, and thanks for joining today's session.

00:00:03.200 --> 00:00:06.840
Let's start with a quick look at the results

00:00:06.840 --> 00:00:09.150
from last quarter before we dive in.

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 convert MP4 to WebVTT?

Create a free Jackob.ai account, upload the MP4 file, and the AI transcribes it automatically. When it is done, choose WebVTT in the export options to download WebVTT subtitles.

What is the difference between WebVTT and SRT?

WebVTT is the web-native subtitle standard used by HTML5 video and streaming platforms, while SRT is the older universal format. Jackob.ai exports both, so you can use whichever your platform requires.

Can I try it for free?

Yes. The free plan lets you transcribe a real MP4 recording each month with no credit card, so you can judge the accuracy on your own audio before paying.

Are my files kept private?

Yes. Files are processed securely, are never used to train AI models, and can be deleted from your account at any time.

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