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Merge

Audio

Merge Audio

Put multiple audio tracks together into one, unified audio track

Upload audio

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.

●Step by Step

How to combine audio files into one audio track

Step 1
Upload audio files
Get started by uploading the audio files you want to combine (MP3, WAV, M4A, etc).
Step 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.
Step 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.

●Featured tools

Discover even more features on Kapwing

Work with your team directly in Kapwing. Create and edit content, then send it to share and collaborate with your teammates. Make team workspaces, comment in the editor, and work on videos together in real time or asynchronously.

Start Editing

●Thoughtfully Unique

What's different about Kapwing?

Six reasons creators stay in flow: faster edits, smarter tools, and collaboration that actually keeps projects moving.

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

Kapwing is completely free to start. Just upload a video and start editing. Supercharge your editing workflow with our powerful online tools.

Collaborative

Quickly review and share feedback with your team using real-time comments in shared workspaces. Save assets to your Brand Kit for easy access.

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

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.

AI-Powered

Kapwing uses the latest advanced AI models to power generative AI and one-click editing tools.

Real teams creating on Kapwing

Already transforming video creation across industries

Hear directly from the teams who publish faster, collaborate better, and stay ahead.

View all reviews

It just works!

Kapwing is incredibly intuitive. Many of our marketers were able to get on the platform and use it right away with little to no instruction. No need for downloads or installations - it just works.

Eunice Park

Studio Production Manager at Formlabs

With Kapwing, we're always ready to create.

Kapwing is an essential tool that we use in MOXIE Nashville every day. As a social media agency owner, there's a variety of video needs that my clients have. From adding subtitles to resizing videos for various platforms, Kapwing makes it possible for us to create incredible content that consistently exceeds client expectations. With Kapwing, we're always ready to create - from anywhere!

Vannesia Darby

CEO at MOXIE Nashville

Spend less time learning... and more time crafting stories.

Kapwing helps you spend less time learning complex video editing platforms and more time crafting stories that will connect with your audience and customers. We've used the platform to help create engaging social media clips from our clients' podcasts and we can't wait to see how the platform simplifies this process going forward. If you've learned graphic design with Canva, you can learn video editing with Kapwing.

Grant Taleck

Co-Founder at AuthentIQMarketing.com

It keeps getting better!

Kapwing is probably the most important tool for me and my team. It’s always there to meet our everyday needs in creating scroll-stopping and engaging videos for us and our clients. Kapwing is smart, fast, easy to use and full of features that are exactly what we need to make our workflow faster and more effective. We love it more each day and it keeps getting better.

Panos Papagapiou

Managing Partner at EPATHLON

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.

Kerry-lee Farla

Youtuber

Kapwing is my secret weapon!

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.

Gracie Peng

Director of Content

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.

Martin James

Video Editor

Love this site.

As an 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

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

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

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, there is no need to be spending hours trying to get the format correct. Kapwing does the hard work for you.