MP4 to Text: Transcribe MP4 Video Free

Transcribe MP4 files to text or SRT subtitles in your browser. Free, private, no upload. Works with MP4, MOV, MKV and all major video formats.

Video to Text

Drop a video file to transcribe it.

Supported: MP4, WEBM, M4V, MOV, MKV

Powered by Whisper AI: runs entirely on your device.

One-time download for the selected quality, instant after that.

On-device model: review and edit before exporting; accuracy won't match paid cloud services.

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How It Works

  1. 1Drop an audio or video file, nothing leaves your device.
  2. 2Pick the spoken language, or let auto-detect handle it.
  3. 3Your browser transcribes it on-device with Whisper AI, the first run downloads a one-time model, sized for your device.
  4. 4Review, edit, and download as SRT, VTT, or plain text.

Your file never leaves your device. Runs entirely in the browser.

MP4 to Text: Transcribe MP4 Files Locally

SubtitleKit is a free MP4 transcriber that runs in your browser. Drop an MP4 (screen recordings, phone videos, camera footage up to 2 GB) and Whisper AI converts the speech to timed text on your own device, with no upload, no account, and no waiting in a queue. The transcript appears live as it works, ready to save as TXT, SRT, or VTT.

How MP4-to-text works

The tool loads a Whisper AI model into your browser, extracts the audio track from your MP4, and transcribes it to timed text on your own machine. Because nothing is uploaded, the conversion runs locally, and once the model has loaded, it works offline.

100% private: your MP4's audio is processed entirely on your own device and never uploaded to any server.

How to transcribe an MP4 to text

  • Drop your MP4: drag the file into the tool, or click to browse. MOV and M4V camera formats work too. Nothing is uploaded.
  • Select the language: pick what's spoken in the recording, or let auto-detect identify it.
  • Transcribe (the MP4's speech converts to text on-device with Whisper AI; the first run fetches a one-time model download (~24-291 MB, matched to your hardware) the picker on the page shows the exact size), then the text streams in live.
  • Save the transcript (download plain text for documents and notes, or SRT/VTT captions to publish with the video) 10 export formats in all.

Who uses this tool

Creators & vloggers

Convert your MP4 uploads into captions and transcripts so every word is searchable, quotable in descriptions, and accessible to viewers on mute.

Accessibility & captions

Generate timed captions from MP4 files for deaf and hard-of-hearing viewers and sound-off playback, then export SRT or VTT alongside the video.

Researchers & journalists

Transcribe MP4 interviews and field recordings into searchable text without the footage ever leaving your laptop.

Educators & students

Turn recorded MP4 lectures and screen captures into readable notes and study material you can search instead of rewatching.

Meetings & business

Transcribe MP4 recordings of calls, demos, and presentations into minutes, all on your own device, nothing confidential is shared with a vendor.

Language learners

Read a transcript alongside any MP4 to study listening and vocabulary at your own pace, with per-line audio replay.

Frequently Asked Questions

How do I transcribe an MP4 to text for free?

Drop the MP4 on this page, pick the language, and download the transcript, free, no sign-up, no watermark, no per-minute pricing. It runs entirely in your browser.

Does it upload my MP4 file?

No. Your MP4's audio is processed 100% on your own device and is never uploaded to any server, which is also why there's no file-size queue.

What formats besides MP4 are supported?

Beyond MP4 it supports MOV, M4V, MKV, and WebM video, plus MP3, WAV, M4A, AAC, OGG, Opus, and FLAC audio. Export text, SRT, VTT, or any of 10 formats.

How accurate is MP4 transcription?

Accuracy depends on the audio in your MP4. Clear speech yields excellent results with the Whisper AI model, a hallucination filter cleans up silence artifacts, and you can edit any line before downloading.

What languages can it transcribe from an MP4?

The 22 languages this site ships in, with automatic language detection, and the underlying Whisper model understands roughly 99. Choose the language manually for the best accuracy.

Tips for MP4 transcription

Phone and camera files work as-is: MP4, MOV, and M4V footage transcribes directly; no conversion step needed first.

If the recording mixes languages, pick the dominant one manually, it noticeably beats auto-detect on mixed audio.

Big files are fine: up to 2 GB per MP4, processed locally, so there's no upload time at all.

Fix names before exporting: click a line to replay that part of the recording and correct people, products, and jargon.