Convert or extract
Keep video and audio in MP4, WebM, MOV or MKV, create a compact GIF, or choose MP3, M4A or WAV to extract the first supported audio track.
PRIVATE VIDEO CONVERTER
Convert video in your own browser.
Convert MP4, WebM, MOV and MKV, make GIFs, or extract the first audio track to MP3, M4A or WAV without sending the source to a remote conversion server.
MP4WEBMMOVMKVGIFMP3M4AWAV
Open the converter →＋
Choose your files
They stay on this device.
01 · ADD02 · CHOOSE03 · CONVERT
- 01
Add a video from your device.
- 02
Choose a video format or an audio-only output.
- 03
Let your browser process it, then preview and download.
Know the trade-off
Video encoding can be demanding. File limits adapt to device constraints, and the interface estimates output size before replacing it with the exact result.
No upload queue
The browser loads the conversion engine and processes the selected file locally. Upload time and remote file retention are removed from the workflow.
LOCAL PROCESSING
The media does not take a round trip through our servers.
Account and quota requests are separate from the conversion itself. SoundToStory stores plan and daily usage information, but not media files, filenames or converted output.
Review the privacy details →COMMON QUESTIONS
Before you convert.
Can I convert a video to MP3?+
Yes. Choose MP3 as the output and SoundToStory extracts the first supported audio track without including the picture.
Why can large video conversions take time?+
Video encoding uses your device CPU and memory. Processing speed depends on the codec, duration, resolution and hardware.
Does SoundToStory store my video?+
No. The video and converted output remain on your device and are not sent to SoundToStory or Supabase.
Ready to change the format?
Use the private conversion workspace in your browser.
Start converting →