Video audio editor

Add Audio to Video

Add audio to video online with background music, narration, voiceovers, and sound effects, then review the mix and export a finished file for publishing.

Use it for

Build a cleaner soundtrack for any video

Combine picture, speech, background music, voiceovers, and sound effects in one focused workflow before exporting a ready-to-share file.

Tutorial videos

Add explanations, step callouts, and soft background music to make walkthroughs easier to follow.

Marketing clips

Use music and sound effects to give product announcements, launches, and ads a finished feel.

Social edits

Pair short clips with voiceovers, intro sounds, or background tracks before posting.

Training content

Add clear narration to screen recordings, lessons, and internal onboarding videos.

How it works

How to add audio to a video online

Use a short three-step workflow to place music to a video, adjust the original audio, and prepare a publishable result.

Step 01

Import your video

Start with a clip, screen recording, product demo, short, or social video that needs cleaner audio, background music, or narration.

  • Bring in MP4, MOV, or other common video files for video editing.
  • Keep the original audio and picture track visible while you work.
  • Prepare a clean project to add audio to video online.
Concept illustration of importing a video before adding audio
Step 02

Layer in audio

Add background music, recorded voice, ambience, or short sound effects, then place each sound where it supports the video.

  • Upload MP3, WAV, AAC, music, narration, jingles, and effects.
  • Line up audio with cuts, captions, or visual moments.
  • Balance spoken words, background music, and sound effects for a clean mix.
Concept illustration of adding voice and music tracks to video
Step 03

Review and export

Check timing, volume, and pacing, then export a video that carries the added audio track cleanly from start to finish.

  • Preview the full edit before export.
  • Make quick timing and level adjustments.
  • Download a finished MP4 video for sharing or publishing.
Concept illustration of exporting a video with added audio

Features

Everything needed for audio and video editing

Add a soundtrack, place voiceovers and sound effects, control levels, and keep the finished output ready for sharing.

Simple media import

Bring video and audio assets into one workspace so the soundtrack stays connected to the video editing timeline.

Background music overlays

Add music to a video for tutorials, promos, clips, and social videos without covering the main message.

Voiceovers and narration

Use narration, commentary, or recorded voiceovers to explain what viewers are seeing on screen.

Timeline placement

Align sound effects with intros, transitions, captions, product shots, or important visual beats.

Volume control

Keep dialogue readable by lowering background music under speech and raising key moments when the video needs energy.

Ready-to-share output

Export audio and video together as a polished file for websites, ads, lessons, or social posts.

Related workflows

Search terms around adding audio to video

This page covers the common ways creators describe the same job: adding background music, placing voiceover, replacing original audio, and exporting a mixed video.

Loved by teams

What teams like about adding audio to video

Editors, marketers, educators, and social teams use audio layers, background music, and sound effects to make video projects clearer and more polished.

"We use it to add audio to video after the picture edit is already approved. Keeping video, voiceovers, and music in one place makes review much faster."

Maya ChenContent Lead

"Our social team can drop in background music, lower it under speech, and export without sending every short video back through a full production queue."

Jordan LeeVideo Producer

"The workflow is useful for quick product walkthroughs. We record the demo first, then add a cleaner narration track once the video editing sequence is final."

Elena ParkProduct Marketer

"Music timing used to be the fiddly part of our launch clips. Now we can line up sound effects around transitions and preview the full result before export."

Noah RiveraCampaign Producer

"It helps our training videos feel less flat. A clear voice track plus quiet background music keeps long lessons easier to watch."

Priya ShahLearning Designer

"For quick client drafts, we can add temporary voiceovers and a music bed before the final audio is ready. That makes early feedback much more concrete."

Theo MartinCreative Director

"We use it to add audio to video after the picture edit is already approved. Keeping video, voiceovers, and music in one place makes review much faster."

Maya ChenContent Lead

"Our social team can drop in background music, lower it under speech, and export without sending every short video back through a full production queue."

Jordan LeeVideo Producer

"The workflow is useful for quick product walkthroughs. We record the demo first, then add a cleaner narration track once the video editing sequence is final."

Elena ParkProduct Marketer

"Music timing used to be the fiddly part of our launch clips. Now we can line up sound effects around transitions and preview the full result before export."

Noah RiveraCampaign Producer

"It helps our training videos feel less flat. A clear voice track plus quiet background music keeps long lessons easier to watch."

Priya ShahLearning Designer

"For quick client drafts, we can add temporary voiceovers and a music bed before the final audio is ready. That makes early feedback much more concrete."

Theo MartinCreative Director

FAQ

Frequently Asked Questions

How do I add audio to a video?

Upload a video, add the audio file you want to use, place it on the timeline, adjust the volume, then export the finished video.

Can I add audio to video online?

Yes. Open the editor in your browser, import a clip, add music or narration, then export audio and video together.

Can I add music and voiceover to the same video?

Yes. A typical edit can include voiceovers for narration and a lower background music track for atmosphere.

Can I replace the original audio?

Yes. Mute or lower the original audio, then add a new soundtrack, voiceover, or sound effects track.

What kind of videos is this useful for?

It works well for tutorials, product videos, social clips, training content, ads, event recaps, and internal updates.

What audio should I use for background music?

Use music that matches the pace of the edit and stays quiet enough that speech, captions, and key moments remain easy to follow.

Which audio formats work for adding music to a video?

Common audio formats such as MP3, WAV, and AAC are practical choices for music, voiceovers, and sound effects.

Will the exported video include the added audio?

Yes. The export should contain the video track and the added audio layers mixed into the final MP4 video file.

Start editing

Add audio to video online today

Import a clip, add background music or narration, replace the original audio when needed, and export a video with a cleaner soundtrack.

Add Audio to Video Online | Music, Voiceovers, and Sound Effects | clipflow