To add audio to a video online, upload your video file and your audio file, then place the audio on the timeline where it should start. Preview the timing and export your video once it sounds right. Lumen5’s free tool lets you do this directly in your browser without downloading software.

Yes. You can upload your own audio files, including voiceovers or background music, and sync them with your video. This is useful if you’ve already recorded narration or music and just need to align it with your visuals.

Yes. Lumen5 allows you to visually place your audio on a timeline so you can control the exact moment it begins. You can adjust the timing by dragging the audio track until it lines up with your video.

Yes. You can use the free tool to upload a video, add audio, preview the timing, and export your video. If you need advanced features like branded templates, multi-scene videos, or team workflows, those are available in the full Lumen5 platform.

Lumen5 supports common video formats like MP4 and MOV, as well as popular audio formats such as MP3 and WAV. This allows you to add audio to videos without converting files beforehand.

No. The tool is designed to be simple and visual. If you can upload files and drag an audio track on a timeline, you can sync audio to your video — even without prior editing experience.