Is my video uploaded?

No. The whole conversion runs inside your browser and the video never leaves your device.

Will the audio stay in sync with the picture?

Yes. The new video has the same length, the original audio offset is preserved, and sync is verified before the file is offered for download.

Is there a watermark?

Only for guests: a small 432 Player mark. With a free verified account there is no watermark and the picture is copied untouched.

Can I convert a YouTube link?

No. The converter works with video files on your device, such as MP4, MOV, M4V, WebM and MKV.

Does it work on my phone?

Yes, in Chrome on Android and in Safari on iOS 26 or newer. With Pro, videos can be up to 3 hours long on a computer; phone limits depend on the device.

Can I save just the audio?

Yes. With a verified free account you can export the retuned audio as MP3 or M4A, and Pro adds WAV.

Free web tool at 432hz.live/convert/video

432Hz Video Converter: retune a video's sound, keep the picture

The 432Hz Video Converter is a free web tool that retunes the soundtrack of an MP4, MOV, M4V, WebM or MKV video to 432Hz and writes a new video with the same length and sync, all in your browser. Free with daily limits; a free verified account keeps the picture untouched, and Pro handles videos up to 3 hours.

Open the video converter Convert a song instead

Picture copied untouched
Sync checked before download
Nothing uploaded
Up to 3 hours with Pro on a computer

The 432Hz Video Converter retuning the soundtrack of an MP4 video

Key facts

Key facts: 432Hz Video Converter
Where	432hz.live/convert/video in current Chrome or Edge, Safari 26, iOS 26 and newer, or Chrome on Android
Price	Free with daily limits. Optional Pro, shared with the web player and the browser extension
Input	MP4, MOV, M4V, WebM, MKV video files (no YouTube links)
Output	Same container or MP4; audio AAC, Opus or MP3; original sample rate or 48 kHz. Audio-only MP3 or M4A (verified free account), WAV (Pro)
Picture	Copied untouched with a verified free account or Pro. Guests: re-encoded up to 1080p with a small watermark
Tunings	432Hz free; 440, 396Hz with a verified free account; Pro: Solfeggio, custom 144 to 1296Hz and cents
Limits	Guest, or signed in but not verified: 2 a day, 1 minute. Verified free account: 3 a day, 6 minutes. Pro: 20 a day, up to 3 hours on a computer; phone limits depend on the device
Privacy	Runs in your browser. Videos are never uploaded
Languages	10 interface languages
Released	25 September 2026

Facts checked 11 October 2026

Free vs ProWhat is free in 432Hz Video Converter and what Pro adds

What makes it different

The picture stays exactly as it was
With a free verified account or Pro, the video stream is copied bit for bit, not re-encoded. HDR colour information is kept.
Audio and picture stay in sync
The audio is processed in chunks with gaps filled and overlaps trimmed, the original audio offset is preserved, and the finished file is checked before you can download it.
Long videos, still no upload
A streaming pipeline writes to private browser storage with bounded memory, so even a 3-hour video (Pro, on a computer) never leaves your device.
More than 432Hz
Solfeggio tones, any Hz from 144 to 1296, source presets such as 442 or 415Hz, and a semitones and cents mode for key changes. Whole semitones are free.
A rare tool
As of October 2026, we know of no other online 432Hz tool that gives you back a retuned video file. The other online converters we checked return audio only.

How it works

Step 1
Choose a video
MP4, MOV, M4V, WebM or MKV from your device.
Step 2
Preview
Play a short clip in original and 432Hz to compare.
Step 3
Save
Download the new video, or just the audio, with the same length and sync.

Features

Presets for where it goes
YouTube, Reels, TikTok and Shorts, WhatsApp, and Best quality (Pro). Presets never crop.
Audio only
Save just the retuned sound as MP3 or M4A with a verified free account, or WAV with Pro.
Audio codec choice
AAC, Opus or MP3, from 128 to 320 kbps. Pro defaults to AAC 256 or MP3 320.
Keep the format
Keep the original container, or save MKV and WebM as MP4.
Fades
Add an audio fade in or out without changing the video length.
Two engines
Classic, or Studio (Signalsmith Stretch) with Pro.
Smaller files when needed
Re-encode to 1080p or 720p if you choose, or up to 2160p with Pro.
Works on phones
Chrome on Android and Safari on iOS 26, as well as Chrome, Edge and Safari on computers.

Who it is for

Creators who publish music, meditation or yoga videos and want a 432Hz soundtrack.
Teachers and practitioners who play videos in class and prefer 432Hz.
Anyone with a concert or music video file they want to hear in 432Hz.

Built since 2013

432 Player came out on iPhone on 15 April 2013 (its App Store page is archived by the Internet Archive from February 2014) and on Android on 30 November 2014. It is discussed in peer-reviewed research: Ruth E. Rosenberg (University of Illinois Chicago), "Perfect Pitch: 432 Hz Music and the Promise of Frequency," Journal of Popular Music Studies 33(1), 2021.

1M+ downloads on Google Playdoi.org/10.1525/jpms.2021.33.1.137

432Hz is a listening preference. Our apps are tools for enjoying music, not medical devices, and make no health claims.

Questions and answers

No. The whole conversion runs inside your browser and the video never leaves your device.