iPhone voice memos
AirDrop or export voice memos as M4A, then transcribe on desktop without sending recordings to the cloud.
Free M4A to text
Convert M4A and Apple voice memo files to text in your browser — free, private, local transcription.
Why use Whisper AI free transcription?
100% free in the browser
No subscription for this tool. Transcribe audio, voice, or URLs with OpenAI Whisper models running client-side.
Private by design
Your audio is not uploaded to our servers for transcription. Processing stays on your device in a Web Worker.
No sign-up required
Start immediately — no account, no API key. Ideal for one-off files, quick memos, or trying speech-to-text privately.
How free browser transcription works
Three steps from audio to text — all local after the model loads.
01
Add your audio
Upload a file, record with your mic, or paste an audio URL — depending on which free tool you use.
02
Choose language & model
Pick source language and a Whisper model size. Quantized models load faster on most devices.
03
Copy or export
Read the transcript on the page, copy to clipboard, or export TXT / JSON — your text, your workflow.
Who converts M4A to text?
Mobile interviews
Journalists and researchers often record in M4A on iOS — turn files into searchable text locally.
Quick idea capture
Brainstorm out loud on your phone, transfer the M4A, and get a text draft in minutes.
Free, private transcription
Built for people who cannot send sensitive audio to the cloud.
- Transcription runs in your browser via a Web Worker — not on Whisper AI servers.
- Audio files are not uploaded for the speech-to-text step on these free tool pages.
- Model weights may cache in your browser after the first load for faster repeat use.
- For how we handle site data overall, see our . Privacy Policy
M4A to text FAQ
Which M4A files are supported?
Standard M4A and AAC audio from iPhones, voice memos, and many recorders work in supported browsers.
Are there size limits for M4A files?
Very long memos may need more RAM. Split long recordings or choose a smaller quantized model if loading is slow.
Do I need an account?
No. Upload your M4A and transcribe locally with no sign-up.
Why use browser M4A to text instead of cloud?
Personal memos and interviews stay on your device. Cloud tools typically require uploading the full file first.
Is this transcription tool really free?
Yes. These pages are free to use with no paywall for local browser transcription. Optional paid plans apply to the Chrome extension and cloud features, not this on-page Whisper tool.
Is my audio private when I transcribe here?
For these free tools, speech-to-text runs locally in your browser. We do not upload your audio to our servers for transcription. URL mode fetches the file from the link you paste; that request goes from your browser to the host.
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