Add Audio to Video

Upload a Video

Click Choose Video and select a supported video file.

• MP4
• AVI
• MOV
• MKV
• WEBM

Upload an Audio File

Click Choose Audio and select the audio file you want to add.

• MP3
• WAV
• AAC
• M4A
• OGG
• FLAC

Select the Processing Mode

Choose one of the available options:

• Replace Audio — Removes the video's original audio. Uses only the uploaded audio.
• Merge Audio — Mixes the uploaded audio with the video's original audio.

Configure Optional Settings

You can customise the output by:

• Adjusting the audio volume
• Enabling audio looping if the audio is shorter than the video

If these settings are not required, the default values can be used.

Process the Video

Click the Process Video button. The application will:

• Validate the uploaded files
• Read the video information
• Process the audio
• Apply the selected settings
• Replace or merge the audio
• Generate the final output video

Preview the Result

After processing is complete, the output page displays:

• The processed video
• Processing status
• Video preview

You can play the video to verify the result.

Download the Video

Click the Download Video button to save the processed video to your local computer.