M4A to text

Transcribe M4A for iPhone voice memos, Apple recordings, and AAC audio

M4A is what Apple devices save voice memos and recordings as. SnailText transcribes an M4A locally on Mac or Windows, no upload, and can export SRT or VTT subtitles alongside the text.

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Transcribe M4A and every other format, locally

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What is an M4A file?

M4A is an Apple-flavored audio container, usually holding AAC audio. It is the default for iPhone and iPad Voice Memos, QuickTime audio recordings, and many Mac apps. If you record on an Apple device, you almost certainly have M4A files.

How to convert M4A to text

SnailText turns a M4A into text locally, in four steps:

Open the Transcribe files screen in SnailText.
Drop in your M4A file, or a whole folder of them.
Pick your output: plain text, Markdown, JSON, or SRT / VTT subtitles.
Run it. The transcript is saved next to your files or wherever you choose.

The Whisper speech model transcribes on your own machine, so the audio never leaves your computer and there is no per-minute charge. M4A works the moment you install SnailText, with no extra codec download. Transcription runs fully on your machine.

You recorded a voice memo or a meeting on your iPhone and it saved as M4A, and now you want it as text on your computer. Apple Dictation only works live, not on a saved file. SnailText takes the M4A and transcribes it locally, and it runs on Windows too, not just Mac.

Free M4A to text converter, no upload

Most "m4a to text online" tools upload your file to a server and cap you at a few minutes unless you pay. SnailText is the opposite: it transcribes M4A on your device, so nothing is uploaded, there is no length limit beyond your own memory, and the free tier has no per-minute meter. That makes it a fit for anything sensitive, recordings with names, client audio, or private notes, where sending the file to a web service is the thing you want to avoid.

M4A to text: transcript, subtitles, and more

M4A transcription is not just plain text. Pick your output before the run and SnailText writes any of these:

· Plain text (TXT) for a clean transcript you can read, search, and edit.
· SRT and VTT subtitles with phrase-level timestamps, ready to drop onto a video.
· Markdown with a heading per file, handy for notes and docs.
· JSON for feeding the transcript into your own scripts or tools.

Try it on your own files

Download for Mac

Transcribe M4A and every other format, locally

What people transcribe from M4A

iPhone voice memo

"Transcribe an M4A voice memo from your iPhone into text you can search and edit."

Recorded meeting

"Turn an M4A meeting recording from a Mac into a written transcript."

Lecture capture

"Convert an M4A recording of a lecture into notes you can review."

M4A to text FAQ

How do I transcribe an iPhone voice memo (M4A)?

Copy the M4A from your iPhone to your computer (AirDrop, iCloud, or a cable), then drop it into SnailText's Transcribe files screen. It transcribes the M4A locally with the Whisper model, no upload and no account. M4A works immediately with no extra codec download.

Can I transcribe M4A on Windows, not just Mac?

Yes. M4A is an Apple format, but SnailText reads it on both Mac and Windows. So an iPhone voice memo can be transcribed on a Windows PC without converting it first, which built-in Apple tools cannot do.

Is M4A transcription free?

SnailText's free tier transcribes locally with the compact Whisper models, no account and no per-minute meter. Pro adds the larger, more accurate models and an optional on-device AI cleanup pass, $7.49/mo or $89/yr for up to 3 devices.

Can I transcribe a whole folder at once?

Yes. Drop a folder (or several files) into the Transcribe files screen and SnailText processes them one after another, writing a transcript for each. It scans the files directly in the folder. You can also drag and drop files straight in.

Can I get SRT or VTT subtitles?

Yes. Pick SRT or VTT as the output before you run the transcription and SnailText writes a subtitle file with phrase-level timestamps. Choose it up front, since subtitles are produced during the run. You can also export plain text, Markdown, or JSON.

What languages can it transcribe?

SnailText transcribes in the full set of Whisper languages (99), and can auto-detect the language or let you pick. Everything runs locally, so multilingual transcription works with no internet after the model is downloaded.

Transcribe other formats

Transcribe M4A on your own machine

Free local transcription, no account needed. M4A to text, plus SRT and VTT subtitles, on Mac and Windows.

Download for Mac Or for Windows →