Add Audio to Video

Add audio to video online with AI Studios. Upload your video and audio, then create a custom video with professional sound in minutes, no software download needed.
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Add Audio to Video
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How To

How to Resize Videos Online

01

Import Your Video

Click the upload button and choose the video you want to edit from your device. Supported formats include MP4, AVI, MOV, WMV, FLV, WebM, and MKV, with a maximum file size of 2.15 GB.
02

Upload an Audio

Select the audio you want to add, such as background music, narration, or a sound effect. Upload MP3, WAV, AAC, FLAC, OGG, or M4A files up to 524 MB. Once uploaded, it will be ready to pair with your video.
03

Edit & Download

Set the exact point where you want the audio to start and adjust the volume until it sounds right. When you’re happy with the result, export and download your finished video so it’s ready to share.

Add Audio to Any Video Online

Easily add audio to video by uploading your track, choosing when it starts, and adjusting the volume so it matches perfectly. Whether you are adding background music, voiceovers, or sound effects, this simple process works for social media clips, training content, and presentations. The tool makes it easy to add background music to a video or merge audio with visuals online, giving you a video that is ready to share in minutes.
Upload Video
Add Audio to Any Video Online

Upload, Edit, and Save Securely

Upload your audio and video files, set the start time for your audio, and fine-tune the volume with ease. All files are stored securely in your account, and the tool supports popular formats like MP3, MP4, and WAV. You can quickly add audio to MP4 or combine audio and video online without worrying about compatibility or safety, making it a simple choice for both beginners and experienced creators.
Upload Video
Upload, Edit, and Save Securely

Fast, Flexible, and Works Anywhere

Adjust audio volume and timing in just a few clicks with no software downloads required. The entire process happens in your browser, so you can add sound to video online anytime, anywhere. Whether you want to merge audio with video, add music to video online, or make quick audio edits before posting, your finished video will be ready to share right away.
Upload Video
Fast, Flexible, and Works Anywhere
Benefits

Why Choose AI Studios to Add Audio to Your Videos

Discover how AI Studios makes audio editing faster, easier, and more creative than traditional tools.

AI-Powered Audio Options

Add audio using advanced AI tools like text-to-speech in 150+ languages, 2,000+ unique AI voices, and custom voice cloning. You can also mix in background music or sound effects for a fully personalized result.

Flexible for Any Project

Whether you are making social media clips, product demos, podcasts, or training videos, AI Studios lets you add, replace, or layer audio with ease. Trim, join, and arrange tracks so your sound matches your vision.

No Software or Experience Required

AI Studios works entirely online with a simple, user-friendly interface. You can upload your video, add your chosen audio, and preview changes instantly—no technical skills or downloads required.

We’re Here to Answer All Your Questions

Choose AI Studios for easy video resizing, editing, and AI-powered enhancements—all in one user-friendly platform.

How do I add an audio to a video for free?

You can add audio to a video for free with AI Studios’ online video editor. Simply upload your video, then choose to add background music, sound effects, an audio file, or even AI text to speech voices. AI Studios works entirely in your browser, so you can create and export videos without downloading any software.

Can I add an audio file to an existing video?

Yes. With AI Studios’ online video maker, you can upload an existing video and add an audio file to it. This makes it easy to replace or enhance your video’s sound before saving and sharing it online.

Is AI Studios’ video audio editor free to use?

Yes. AI Studios offers a free plan that lets you add audio to videos online. Free accounts include watermarked exports, while paid plans remove the watermark and unlock additional benefits like HD exports, advanced AI tools, and longer video durations. Visit our pricing page to view the full plan comparison.

What’s the best app to add music to videos?

If you want an all-in-one online video editor with music and audio tools, AI Studios is one of the best options. You can upload your own music, use royalty-free tracks from our library, or create AI-generated voiceovers, all in the same project.

What is the easiest way to add music to a social media video for free?

With AI Studios, you can upload your social media video, add music or sound effects in just a few clicks, and export it in the correct format for TikTok, Instagram Reels, YouTube Shorts, and more. This makes it simple to prepare high-quality, ready-to-share videos without extra apps or complicated tools.

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