Free AI subtitle generator

Free MP4 to SRT converter

Turn an MP4 video into a timed SRT. We pull the audio track for you and return subtitle cues that sync to the clip

3 AI models

4 free export formats

99 languages

Transcribe audio and video in 99 languages

  • English
  • Español
  • 中文
  • Français
  • Deutsch
  • 日本語
  • Русский
  • Português
  • Italiano
  • 한국어
  • العربية
  • हिन्दी
  • Türkçe
  • Polski
  • Nederlands
  • Български
  • বাংলা
  • Čeština
  • Dansk
  • Ελληνικά
  • فارسی
  • Suomi
  • עברית
  • Magyar
  • Bahasa Indonesia
  • മലയാളം
  • Română
  • Svenska
  • Kiswahili
  • தமிழ்
  • తెలుగు
  • ไทย
  • Українська
  • اردو
  • Tiếng Việt
How it works

mp4 to srt in 3 steps

  1. 1

    Upload your video

    Drop your file or click to choose. MP4, MOV, WebM, MP3, M4A, and more.

  2. 2

    Pick language and model

    Auto-detect the language or choose from 99. Use free Turbo for speed, or Studio for the best accuracy.

  3. 3

    Export your subtitles

    Read the transcript in seconds, then export timestamped SRT subtitles ready for any editor.

Why Typist

Built for fast, accurate transcripts

An hour in about a minute

Groq-served Turbo runs at roughly 200x real time, so your transcript is ready almost immediately

Every export, free

Download as plain text, Word, PDF, or timestamped SRT subtitles on every plan

Your file stays yours

Uploaded only to transcribe, removed afterward, and never sold, shared, or used to train models

99 languages

Auto-detected or pick your own, with the most accurate model recommended per language

Beyond transcription

Your transcript is just the start

  • AI summary and key moments

    One tap turns the transcript into a TL;DR, key quotes, and action items.

  • Auto chapters

    Long recordings are split into navigable chapters you can jump between.

  • Share or export anywhere

    Send a clean public link, or export to TXT, DOCX, PDF, or SRT.

Summary
Chapters
IntroKey pointsQ&AWrap-up

Ready to turn MP4 into subtitles?

Drop a file and read your transcript in seconds. Free to start, no signup.

Transcribe a file
The format

What MP4 actually is

An SRT is a plain-text subtitle file of numbered cues, each with a start and end timecode and the caption text. MP4 is a container wrapping a video track and an audio track, and for subtitles only the audio matters. Typist transcribes that audio with word-level timing and writes cues that line up with the video.

Typist decodes the audio track only and ignores the video, so a 4K file and a 480p file with the same audio produce identical subtitles. Resolution and frame rate do not matter. MP4 audio is almost always AAC, which is clear for speech. Cue boundaries come from word-level timing, and the words are grouped into short readable lines.

Where these files come from

The default video format almost everywhere: phone cameras, screen recordings, YouTube downloads, and Zoom recordings, all of which you may want captioned.

  • Videos
  • YouTube
  • Webinars
  • Podcasts
How MP4 becomes textWe use the audio track and ignore the video
  1. MP4 fileYour upload
  2. Video trackIgnored, resolution does not matter
  3. Audio decodedThe speech is what we transcribe
  4. TranscriptCopy or export to TXT, DOCX, PDF, SRT
Output
SRT subtitles
Timing
Word-level
Lines
~42 chars
Works with
Any editor
Subtitles

Timed captions, ready for your editor

how to export a subtitle file
captions.srt
100:00:00,000 --> 00:00:02,800In this tutorial I will show you
200:00:02,800 --> 00:00:05,600how to export your first
300:00:05,600 --> 00:00:08,400subtitle file from the project

Loads into your tools

  • CapCut
  • Premiere Pro
  • DaVinci Resolve
  • YouTube Studio
  • Final Cut Pro
  • VLC

Readable on screen

Typist re-segments long speech into short timed lines of about 42 characters, at most two lines per cue, so subtitles stay readable on screen. It never dumps a whole paragraph into one cue.

FAQ

Questions about converting to text