Sonorarium

Convert WEBM to text

Upload your file and get an accurate transcript of your WEBM with timestamps in minutes — nothing to install.

Drag your audio or video here

Choose file

MP3, WAV, M4A, OGG, MP4, MOV, WEBM… up to 2 GB

10 free minutes a day, no sign-up · Your files are deleted after 7 days

About WEBM

WEBM is the format produced by many web recorders, browser extensions and video call tools. We accept it with video or audio only.

How to transcribe in 3 steps

  1. 1

    Upload your file

    MP3, WAV, M4A, MP4, WhatsApp voice notes… up to 5 hours and 2 GB.

  2. 2

    AI transcribes it

    Our GPU servers turn speech into text with timestamps.

  3. 3

    Review and download

    Edit anything you want and export to Word, TXT or subtitles.

Everything you need to turn speech into text

Human-level accuracy

We run Whisper large-v3 turbo on GPUs, one of the most accurate speech recognition models available.

60+ languages

Automatic language detection, or pick it yourself. Great for English, Spanish, Portuguese and many more.

Really fast

An hour of audio is usually transcribed in just a few minutes.

Export to any format

TXT, Word (DOCX), SRT and VTT subtitles, or JSON with timestamps.

Built-in editor

Listen to the audio in sync with the text and fix any word before downloading.

Private by default

Files are encrypted in transit, automatically deleted after 7 days and never used to train models.

Frequently asked questions

How do I transcribe WEBM to text?+

Upload the file above, choose the language (or leave it on automatic) and click Transcribe. In a few minutes you'll have the text with timestamps, ready to copy or download.

Is transcribing WEBM free?+

Yes, up to 10 minutes a day without signing up. When you create an account you get 30 free minutes, and then you can buy minutes without a subscription.

Which formats can I download the transcript in?+

TXT, Word (DOCX), SRT and VTT subtitles, and JSON with timestamps.

Is my data safe?+

Your files are transferred encrypted, deleted automatically after 7 days and never used to train AI models.

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