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HeyCaptions

Convert MP3 to text online

Upload an MP3 file and get an accurate transcript with punctuation in seconds. Copy it or download it as TXT, SRT or VTT.

Drop your audio or video file here

MP4, MOV, WEBM, MP3, WAV and more · up to 500 MB · 30 min

Your file is deleted automatically when you are done.

  • 100% free
  • No watermark
  • No sign-up
  • Auto-deleted

How it works

  1. 1

    Upload video or audio

    MP4, MOV, MP3, WAV, M4A, voice memos and more.

  2. 2

    Get your transcript

    Accurate text with punctuation, ready in seconds.

  3. 3

    Copy or download

    Copy the text or download it as TXT, SRT or VTT.

Video to text, in seconds

Video to text, in seconds

Need the words, not the captions? Get a full transcript with timestamps from any video or audio file and copy it with one click.

Transcribe a video
Every word, perfectly timed

Every word, perfectly timed

Tap a caption to jump to it, fix a word or highlight the important ones. Every change shows up instantly in the live preview.

Try the editor

Everything you need, nothing you don’t

  • Word-perfect auto timing

    Every word gets its own timestamp, so captions appear exactly when they are spoken.

  • Styles that go viral

    Bold, Karaoke, Viral, Neon, Boxed and more – made for TikTok, Reels and Shorts.

  • 99 languages

    Automatic language detection, from English and Spanish to Turkish and Japanese.

  • Edit like a document

    Fix any word in seconds and highlight the words that matter.

  • MP4, SRT, VTT & TXT

    Download a captioned video or subtitle files for any platform.

  • Private & auto-deleted

    Files are processed on our own servers and deleted as soon as you are done.

Accurate MP3 transcription in 99 languages

HeyCaptions turns any MP3 – a podcast, lecture, interview or voice memo – into text with a Whisper-based speech recognition model running on our own GPUs. The language is detected automatically, and punctuation and paragraphs are added for you.

Every word is timestamped, so you can also download subtitles as SRT or VTT, or jump to any part of the recording.

Not just MP3

WAV, M4A, AAC, OGG, OPUS and FLAC files work the same way, as does the audio track of any video. Files up to 500 MB and 30 minutes are supported.

Frequently asked questions

How do I convert MP3 to text?

Upload the MP3 above and wait a few seconds. You’ll see the transcript, which you can copy or download as a TXT, SRT or VTT file.

Is the MP3 to text converter free?

Yes, completely free – no sign-up and no limits on downloads.

Can it transcribe songs?

It transcribes vocals, but loud music lowers accuracy. Spoken audio like podcasts, interviews and voice memos works best.

Is HeyCaptions really free?

Yes, 100% free. No sign-up, no watermark and no paid “export” step.

What happens to my video?

Your file is only used to create your captions. It is processed on our own servers and permanently deleted as soon as you are done – at the latest 30 minutes after your last activity. We never use your files for anything else.

Which languages are supported?

HeyCaptions recognizes 99 spoken languages, including English, Spanish, German, French, Portuguese, Italian, Dutch, Polish, Turkish, Japanese, Korean, Chinese, Hindi and Arabic. The language is detected automatically.

Are there any limits?

Files can be up to 500 MB and 30 minutes long. MP4, MOV, WEBM, MKV, AVI, MP3, WAV, M4A and most other formats work.

Does it work on my phone?

Yes. HeyCaptions works in any modern browser on iPhone, Android, tablets and computers – no app needed.

Ready to caption your video?

It’s free, it’s fast and there’s no watermark.

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