Upload video clips and audio clips on separate tracks, order each side, and export one MP4 or WebM file. Free online video and audio merger — no install needed.
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01Upload video and audio tracks
Add video clips to the video track and audio clips to the audio track. Mixed formats on each side are fine.
02Order clips and pick an export format
Arrange files in the order you want them combined. Choose MP4 or WebM before you merge.
03Merge, preview, and download
Processing runs in your browser with ffmpeg.wasm. Preview the combined file, then sign in to download.
Pair narration with screen recordings, music with B-roll, or voice with silent footage — separate tracks, one browser export. Drag clips into playback order, preview the full join in your browser, and export one continuous MP3 or WAV track without opening a desktop editor.
When footage and sound come from different exports, keep them on separate tracks. Order each side, then mux into one MP4 or WebM without opening a desktop NLE. MP3 suits hosts and phone libraries; WAV hands off cleanly to Audacity, Logic, or Premiere — export from the same browser merge workflow.
Drop a screen recording on the video track and a voiceover on the audio track, or stack interview audio under visual cutaways. Each track concatenates in order before export. Export a single continuous track when the order sounds right; sign in only when you download from Video and Audio Merger.
Watch the combined result on the page while ffmpeg.wasm runs locally. Sign in to save when lip-sync and levels look right. Export a single continuous track when the order sounds right; sign in only when you download from Video and Audio Merger.
It combines video footage with a separate audio track into one file. Upload clips to each track, set the order, and export MP4 or WebM. Add your clips in the merger workspace, arrange order on the timeline, preview the combined output, then export from this Video and Audio Merger page.
Add video files to the video track and audio files to the audio track, arrange each side, pick MP4 or WebM, and click Merge. Add your clips in the merger workspace, arrange order on the timeline, preview the combined output, then export from this Video and Audio Merger page.
Yes. The merger concatenates each track in order, then combines them into one export. Add your clips in the merger workspace, arrange order on the timeline, preview the combined output, then export from this Video and Audio Merger page.
Video uploads include MP4, MOV, WebM, and MKV. Audio uploads include MP3, WAV, M4A, and OGG. Export as MP4 or WebM. Check the upload chip on this page for the full list of supported containers; matching those formats avoids failed imports.
In Video+audio tracks mode, the export uses your uploaded audio combined with the video track. Upload only the audio you want in the final file.
No. Upload, order, merge, preview, and download in the browser without installing desktop tools. No encoder install is required — open Video and Audio Merger in a modern browser, add your file or link, and export from the same tab.
Handle feature-length movies and series with AI translation, voice replacement, and subtitle tracks in one place.