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Merge Audio

Put multiple audio tracks together into one, unified audio track

Merge Audio Screenshot

Combine audio easily online

Have full creative control over your audio and curate the right feel to your video, audio, or picture. Whether you want to combine voice over tracks or make your own music compilation, you can with Kapwing’s audio joiner.

Make your audio fade in or out when transitioning to another song or video clip. Kapwing’s easy-to-use online video and audio editor gives you the power to stitch your video together seamlessly.

Merge Audio Screenshot

How to combine audio files into one audio track

Merge Audio
  1. Upload audio files

    Get started by uploading the audio files you want to combine (MP3, WAV, M4A, etc).

  2. Arrange, trim, and add effects on the timeline

    Place your audio files in the bottom timeline to start arranging, trimming, and adding a crossfade to your audio track.

  3. Export and download

    Export your combined audio to an MP3 or MP4 file, and download it to share with others.

The Web’s Most Reliable Free Audio Joiner

Create, trim, and combine audio files together for free online, using Kapwing. Overlap two audio files or link them together to make one long MP3 file. Kapwing works on any computer including both Mac and Windows PC, so you can merge audio anywhere directly from your web browser.

With Kapwing’s MP3 merger and editor, you can edit and combine most audio formats including MP3, WAV, M4A, and more. Once you’ve joined audio, export it as an MP3 file or add it to any video or photo slideshow.

Add your favorite songs or sound effects to polish your video or create your own music compilation to post on YouTube or TikTok. Stay relevant and up-to-speed when you make your own TikTok sound compilation or a music compilation of trending songs on YouTube. Stitching songs together and elevating our videos with fitting sound effects and background music. Now that’s music to our ears.

What's different about Kapwing?

Easy
Easy
Start creating immediately with thousands of templates and copyright free videos, images, music, and GIFs. Repurpose content from the internet by pasting a link.
Free
Free
Kapwing is completely free to start. Just upload a video and start editing. Supercharge your editing workflow with our powerful online tools.
Accessible
Accessible
Automatically subtitle and translate videos with our AI-powered Subtitler tool. Caption your videos in seconds, so that no viewers get left behind.
Online
Online
Kapwing is cloud based, which means your videos are wherever you are. Use it on any device and access your content anywhere in the world.
No spam or ads
No spam or ads
We don't serve ads: we're committed to building a quality, trustworthy website. And we will never spam you nor sell your information to anyone.
Powerful
Powerful
Kapwing works hard to help make the content you want, when you want it. Get started on your project today.
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Trusted by millions of creators all over the world
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Best online video service ever. And a miracle for deaf people.
[Subtitler] is able to autogenerate subtitles for video in almost any language. I'm deaf (or almost deaf, to be correct) and thanks to Kapwing I'm now able understand and react on videos from my friends :)
Michael Trader
Information Services Freelancer
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This tool should be in every social media account managers' bookmark list.
I use this daily to help with video editing. Even if you're a pro video editor, their is no need to be spending hours trying to get the format correct. Kapwing does the hard work for you.
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By the far the most user friendly software to use.
As a housewife at home looking to start a Youtube channel for fun with absolutely zero editing experience, it was so easy for me to teach myself via their YouTube channel. It takes the tediousness out of editing and encourages creativity. As long as Kapwing is around, I will be using their software.
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This is one of the most powerful, yet inexpensive and easy-to-use video editing software I've found. I blow my team away with how fast and efficiently I can edit and turnaround video projects.
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Kapwing is king.
When I use this software, I feel all sorts of creative juices flowing because of how jam-packed with features the software really is. A very well-made product that will keep you enticed for hours.
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Love this site.
As a English Foreign Language Teacher, this site helps me to quickly subtitle interesting videos that I can use in class. The students love the videos, and the subtitles really help them to learn new vocabulary as well as better understand and follow the video.
Heidi Rae
Education
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Excellent subtitling features
[It] works perfectly for me. Have been using Kapwing for a year or so, and their automatic subtitle tool gets better and better every week, it's rare that I have to correct a word. Keep up the good work!
Natasha Ball
Consultant
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Best online video service ever. And a miracle for deaf people.
[Subtitler] is able to autogenerate subtitles for video in almost any language. I'm deaf (or almost deaf, to be correct) and thanks to Kapwing I'm now able understand and react on videos from my friends :)
Mitch Rawlings
Information Services Freelancer
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Kapwing is free to use for teams of any size. We also offer paid plans with additional features, storage, and support.