🎵 M4A to VTT

Convert M4A Audio to WebVTT Captions Instantly

Transform your M4A recordings into perfect WebVTT files. Improve web accessibility and SEO for your audio content with AI-synced captions.

✨ Powered by AI

Click or drag & drop your audio/video file here

Securely convert your compressed audio recordings to VTT. All major audio and video formats supported.

Privacy First · No files retained

Lightning Fast · GPU Accelerated

Multilingual · Supports 90+ languages

Three Simple Steps

Upload Your M4A File

Drag & drop your M4A audio or Apple Voice Memo. Our browser-based tool processes the audio format securely.

AI Generates WebVTT

Our advanced speech recognition engine analyzes the audio and generates a standard .vtt file with precise millisecond timestamps.

Add to Your Web Player

Download the VTT file and link it to your HTML5 <audio> or <video> tags for instant web accessibility.

Supported Conversion Formats

Fast, private, and accurate AI transcription for your most used formats.

🎬

MP4 to Text

Extract audio from your MP4 videos and generate a highly accurate, downloadable transcript in seconds.

🎧

MP3 to Text

Convert your podcasts, interviews, or voice notes into readable text with perfect speaker separation.

📱

M4A to Text

The easiest way to convert iPhone voice memos and M4A audio files into text instantly.

💬

Voicemail to Text

Stop listening to long voicemails. Upload your audio and let AI transcribe it into text you can read at a glance.

Pricing

Transparent pricing. Massive quotas. Just pure productivity.

Choose a plan that fits your workflow and get unparalleled transcription speed with absolute privacy.

MonthlyAnnual

Starter

Perfect for trying it out

Free forever

Try it Free

20 Minutes Free Quota
Cloud API Processing
Standard Export (.txt, .srt)

Pro

For daily professionals

$19.90/mo

Includes 4,000 Credits/mo (~66 Hours)

Speaker Diarization Included
Priority Cloud Turbo Engine
100% Privacy & Local Processing
All Export Formats (.vtt, .srt, .txt)

Max

For power users & teams

$49.90/mo

Includes 15,000 Credits/mo (~250 Hours)

Everything in Pro
Highest Priority Queue
Commercial License
API Access (Coming Soon)

Frequently Asked Questions

VTT (WebVTT) is the standard format for adding closed captions and subtitles to HTML5 web players. It improves website accessibility and helps search engines index your spoken audio content.

Yes. iPhones and iPads save Voice Memos in the M4A format natively. You can upload those files directly here without needing to convert them to MP3 first.

Powered by advanced AI, our engine aligns the generated text with the spoken words at the millisecond level, ensuring perfect synchronization when played back on the web.

Yes. While both are subtitle formats, VTT includes specific HTML5 metadata and CSS styling capabilities that SRT lacks, making it the preferred choice for web developers.