EnglishENFree Add Audio to Video Online
Upload video and a separate audio track, combine them in your browser, and export MP4 or WebM. Free online — no install needed.
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How to Add Audio to Video Online
01Upload your video and audio files
Add video clips to the video track and your new audio to the audio track. Mixed formats on each side are supported.
02Order clips and choose an export format
Arrange files in the order you want them combined. Pick MP4 for broad compatibility or WebM for web playback.
03Merge, preview, and download
Processing runs in your browser with ffmpeg.wasm. Preview the result, then sign in to download your video with the added audio.
Why Add Audio to Video with VMEG
Attach a voiceover, music bed, or podcast clip to silent or replacement footage — separate tracks, one MP4 or WebM export.
Video and audio on separate tracks
Upload the picture on one track and the new sound on another. Order each side, then export one file — no timeline software required for a straight mux.
Voiceovers, music beds, and podcast audio
Pair narration with screen recordings, lay a music track under B-roll, or attach interview audio to silent footage. Built for everyday add-audio jobs.
Add audio to video in the browser
Open the page, upload both tracks, preview the combined clip, and sign in to download MP4 or WebM when it sounds right.
Multiple clips on each track
Chain several video segments and several audio files in order. Each track concatenates first, then combines into one export.
MP4 or WebM before export
Pick MP4 for social and editing apps, or WebM for lightweight web playback after you add audio to video.
Preview before you save
Watch the merged video with your added audio on the page. Processing runs locally with ffmpeg.wasm in your browser.
Frequently Asked Questions
Upload video to the video track and audio to the audio track, set the order on each side, choose MP4 or WebM, and click Merge. Preview, then sign in to download.
Yes. Upload and combine tracks in the browser. Preview is free; sign in to download the merged file.
No. Upload video and audio, merge tracks, preview, and download without installing desktop editing apps.
Yes. Upload multiple video clips and multiple audio clips. Each track is concatenated in order, then combined into one export.
Video uploads include MP4, MOV, WebM, and MKV. Audio uploads include MP3, WAV, M4A, and OGG. Export as MP4 or WebM.
In Video+audio tracks mode, the exported file uses your uploaded audio combined with the video track. Upload only the audio you want in the final file.
Discover More Tools on VMEG
Extract audio, merge clips, generate subtitles, and translate videos — more free tools on VMEG.
Need multilingual voiceover instead of one audio bed?
Dub your video into other languages with AI voices after you combine tracks on VMEG.