🎬 Replace or Add Audio to Video

Easily replace the audio track in any video or mix in background music. Perfect for adding voiceovers, background scores, or replacing poor-quality audio.

⚙️ Local browser processing

Free allowance: 1 file per day across features; free transcription is limited to 5 minutes per file. View pricing and limits

Free uses remaining: 1 / 1

📁

Input Video

Drag & drop or click to browse

📁

Input Audio

Drag & drop or click to browse

Mode

Replace audioMix with original

📖 How to Use

Upload Video

Select your video file.

Upload Audio

Select the audio file you want to add.

Choose Mode

Select Replace (swap audio entirely) or Mix (blend with original).

Process & Download

Click process and download the result.

❓ Frequently Asked Questions

Can I keep the original audio and add music?

Yes, choose "Mix" mode to blend the new audio with the original track.

What audio formats are supported?

MP3, WAV, AAC, OGG, FLAC, and most common audio formats.

Will the video quality change?

No, the video stream is copied without re-encoding, preserving original quality.

Is there a length limit?

No hard limit. The audio will be trimmed to match the video duration.

🔗 Related Tools

🎵

Free Online Audio Extractor

🔄

Free Online Audio Converter

🔗

Merge Audio Files Online

🗜️

Compress Audio Files Online

🚀 Need More Power?

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