Add Music to Video

Replace a video's audio with a song or voiceover you upload — in your browser.

Select the video

MP4, MOV, WebM

Fes clic per triar o deixa anar un fitxer aquí

Select the music / audio

MP3, WAV, M4A — replaces the video's sound

Fes clic per triar o deixa anar un fitxer aquí

Com Add Music to Video

1
Add the video
Drop in the clip.
2
Add the audio
Drop in a song or voiceover — it replaces the video's own sound.
3
Combine and download
Click Add music; the video plays with the new track and is re-recorded.

Related PDF tools

Mute VideonewRemove the audio track from a video, in your browser.Trim VideonewCut a video down to just the part you want, in your browser.Merge VideosnewJoin multiple video clips into one, in the order you set — in your browser.Crop VideonewCrop a video to a square, 9:16 or 16:9 for Instagram, TikTok, Reels or YouTube.

Add Music to Video — preguntes freqüents

Is anything uploaded?+

No. The video and the audio are combined entirely in your browser.

Does it keep the original sound?+

No — the uploaded track replaces the video's audio. To keep both, mix them in an audio editor first.

What if the song is longer than the video?+

It's cut to the video's length. A shorter song leaves silence at the end.

Does it re-encode?+

Yes, in real time (the video's length). Best for short clips.

Pugeu els meus fitxers a un servidor?+

No: cada eina aquí processa els teus fitxers totalment al teu dispositiu, i no es puja res a un servidor. L'única excepció són les eines d'IA, que envien el text extret (no el fitxer) a Claude per fer la seva feina.

Hi ha un límit de mida de fitxer?+

No imposem cap límit artificial, però com que el processament passa al teu navegador, els fitxers molt grans (500+ MB o 1.000+ pàgines) estan limitats per la memòria del teu dispositiu, no per nosaltres.