Replace Video Audio
100% private — your files never leave your device
Swap the audio track of a video with a new audio file you upload.
100% Private
Files are processed locally in your browser and never uploaded to a server.
Instant Results
No queues, no waiting — get your output the moment you click.
No Signup
Free to use with no account, no email, and no watermarks.
Works Everywhere
Runs on any modern device — desktop, tablet, or mobile.
What is Replace Video Audio?
Replace Video Audio is a free, browser-based video tool that swap the audio track of a video with a new audio file you upload. It supports MP4, MOV, WebM file formats. Everything runs in your browser, so your files are processed on your device, not on our servers.
How it works
Upload your video file by dragging and dropping or browsing your files.
Adjust the available settings to your preference and preview changes in real time.
Click the process button to run the tool.
Download or copy your result instantly — no waiting, no email required.
Perfect for
- Swap the audio track of a video with a new audio file you upload
- Creating content for social media reels and stories
- Reducing video file sizes for email or messaging apps
- Converting video formats for cross-platform compatibility
Why use it
- 100% browser-based — your files are processed on your device
- Free, with no signup or account required
- Instant results with no processing queues
- Works on any device — desktop, tablet, or mobile
- Supports MP4, MOV, WebM formats
- Batch processing for multiple files at once
- No watermarks on your output
Frequently asked questions
Is Replace Video Audio free?
Yes, Replace Video Audio is free to use, with no hidden fees.
Is Replace Video Audio safe to use?
Yes. Replace Video Audio runs in your browser, so your videos are processed on your device, not on our servers.
Do I need to install anything to use Replace Video Audio?
No. Replace Video Audio is a web-based tool that works in any modern browser — Chrome, Firefox, Safari, or Edge. Just open the page and start using it.
What file formats does Replace Video Audio support?
Replace Video Audio supports MP4, MOV, WebM formats.
How does Replace Video Audio work?
Replace Video Audio is a video tool that swap the audio track of a video with a new audio file you upload. Add your video, adjust the available settings, and get your result right away, all processed in your browser.
Does Replace Video Audio work on mobile?
Yes. Replace Video Audio is fully responsive and works on desktops, tablets, and mobile phones. The interface adapts to your screen size automatically.
Are there any limits when using Replace Video Audio?
Replace Video Audio has no daily usage caps and adds no watermarks. Because it runs on your device, very large files depend on your device's memory.
Ready to use Replace Video Audio?
Free, instant, and runs entirely in your browser. No download, no signup, no limits.
Takes less than 10 seconds