vdoflow

Add Audio to Video Online for Free

Add audio to video directly in your browser by pairing a video with a separate soundtrack using private local processing.

Choose a video to start

Drop a file here, upload from your device, or open your library.

What add audio to video solves

Add audio to video when the visuals are right but the soundtrack needs to be replaced with music, narration, or a cleaner recorded track.

Add audio to video when the visuals are already right but the soundtrack should be replaced with narration, music, or a cleaner recorded track.

When add audio to video is the right tool

  • Swap noisy camera audio for a finished voiceover
  • Pair silent footage with narration
  • Replace rough source sound without opening a full editing timeline

Common mistake to avoid

Use a finished audio file. This workflow is for replacing the soundtrack, not for mixing many tracks together.

How this differs from nearby tools

If you only want silence, use remove audio. If the video timing is wrong, trim before adding the new soundtrack.

After replacing audio, watch one full preview to confirm the chosen visuals and soundtrack still feel synchronized enough for the intended use.

How to use

  1. 1. Open the source file: Load the clip you want to add audio to video.
  2. 2. Apply the main fix first: Change only the setting that solves the primary problem before layering more edits on top.
  3. 3. Export and preview: Check the result in the real destination before deciding the job is done.

FAQ

When is add audio to video the right move?

Use add audio to video when that is the direct fix for the real problem, rather than a side issue like format or file size.

Should I change other settings first?

Usually no. Start with the edit that matches the main problem, then export one test copy before stacking more changes on top.

Can I keep working on the result afterward?

Yes. vdoflow works best as a sequence of focused steps, so you can trim, crop, resize, convert, or compress in the order the job actually needs.

Related tools and guides

Remove Audio

Create a silent version instead of replacing the soundtrack.

Video to MP3

Extract the current audio before you replace it.

Trim Video

Shorten the clip before you attach the new soundtrack.

Convert Video

Export the final result into a delivery-ready format.

Try vdoflow next

Start with one focused workflow and keep the suggested settings ready when the page opens.

Replace the soundtrack

Open the add-audio workflow and attach a new soundtrack.

Open Tool

Mute the clip instead

Export a silent version when you do not want any soundtrack at all.

Open Tool

Trim before pairing audio

Shorten the clip first so the soundtrack matches the final section.

Open Tool

Embed this tool

Use the same vdoflow tool inside your own docs, product pages, or support articles.

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  title="vdoflow embedded video tool"
  src="https://vdoflow.com/embed/add-audio-to-video"
  width="100%"
  height="760"
  style="border:0;"
  loading="lazy"
  allow="clipboard-write"
></iframe>

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