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M4A to text — convert iPhone and Android recordings to text

M4A is what iPhones, Macs and many recorder apps save audio as. Drop one here, or record straight into the page; the guide below opens on the steps for your device, and the card checks live that your browser reads M4A.

Drop an audio or video file here

MP3, M4A, WAV, MP4, OGG, FLAC, WebM — any length

Transcribed in your browser. The file never leaves your device.

Recording 0:00

      Click any line to play it.

      • M4A
      • MP3
      • WAV
      • MP4
      • OGG

      Getting the recording off your phone

      The steps for your device are shown first. On a phone you can also open this page and pick the file directly.

      1. Open Voice Memos and tap the recording.
      2. Tap ••• and choose Share.
      3. Choose Save to Files — or AirDrop it to your Mac.
      4. Drop the .m4a file into the box above.

      See also: Voice message to text

      About M4A files

      Your browser
      checking…
      Audio inside
      AAC
      Typical size
      ≈ 1 MB per minute
      Length
      Read in one piece: up to about 35 minutes per file

      See also: MP3 to text

      How it works

      1. Drop an audio or video file into the box above, or choose one from your device.
      2. The speech model loads in your browser and the text appears as it is transcribed. The file is never uploaded.
      3. Copy the transcript, or download it as TXT or as SRT subtitles.

      FAQ

      Why would my browser not read M4A?
      M4A is AAC audio, and a few stripped-down browser builds (some Linux Chromium packages) leave AAC out. Chrome, Edge, Safari and Firefox on Windows and macOS all read it.
      How long can an M4A be?
      About 35 minutes per file, because M4A is read in one piece. For longer recordings, save or convert to MP3, which is read in small pieces and has no limit.