# Merge Audio Files Online: Join MP3s Free - [Home](/) - - - [Tools](/tools/) - - - Merge Audio Files # Merge Audio Files Online: Join MP3s Free Combine songs, voice notes or podcast segments into a single track. Put the clips in order, choose a short silence or a smooth crossfade between them, and download one file. Everything runs in your browser. Drop audio files here, or click to choose MP3 - WAV - M4A - OGG - FLAC - video soundtracks - up to 20 minutes in total Choose files Your files never leave your device. The encoders are downloaded from dragbin.com the first time you need them: the MP3 encoder when you save an MP3, and an AAC encoder only if your browser lacks its own. [MP3 encoding by LAME (LGPL)](https://lame.sourceforge.io/) - [AAC encoding by FFmpeg libavcodec (LGPL)](https://ffmpeg.org/legal.html) Free to UseNo hidden chargesNo Software InstallationRuns in your browserNo Sign UpStart instantly ## Work privately, then store privately with DragBin Processing a file in your browser keeps it private in the moment. The files you keep and share need that same guarantee for the long run. DragBin protects files with [client side](/client-side-encryption/), [quantum resistant encryption](/post-quantum-encryption/) (ML-KEM + AES-256) keeping sensitive data private with a [zero knowledge](/zero-knowledge-encryption/) security architecture. - Get 5GB quantum resistant storage forever - Unlimited sharing, unlimited bandwidth and unlimited file size uploads - Integrated Global CDN and preview media in 4k/8k [Try DragBin Today](https://dragbin.com) ## How to Merge Audio Files Three steps. You can change the order or the settings and merge again as often as you like. Step 1 Add two or more audio files, then drag them (or use the arrow buttons) into the order you want. Step 2 Choose a gap of silence or a crossfade between clips, decide whether to match their volumes, and pick an output format. Step 3 Press Merge, listen to the result, and download it. ## Why Use This Audio Joiner? It joins clips cleanly, without an account, a watermark, an upload or an install. ### Any Order You Like Drag clips with a mouse, or move them with buttons on a phone or keyboard. ### Gaps or Crossfades Leave up to 5 seconds of silence between clips, or blend each one into the next. ### Mixed Formats Welcome MP3, WAV, M4A, OGG and FLAC can go in the same merge. Rates and channels are matched for you. ## Private by Design Your recordings are joined on your own device and are never sent to a server. ### Stays on Your Device Decoding, joining and encoding happen in your browser tab. Only the tool's code and encoders download, from dragbin.com. ### Even Out Levels Optionally raise quieter clips so every part peaks at the same level. ### Nothing to Install Works in current Chrome, Edge, Firefox and Safari 26 or later. ## Try DragBin Today Pair private, in-browser file tools with zero-knowledge, quantum-resistant cloud storage. 5GB free, forever. [Claim 5GB free storage (opens in new tab)](https://app.dragbin.com/signup) ## Frequently Asked Questions ### Are my audio files uploaded anywhere? No. Your files are decoded, joined and encoded inside your browser tab and never sent to a server. The page does download its own code from dragbin.com, including the MP3 encoder the first time you save an MP3, and an AAC encoder if your browser doesn't have one built in. ### Which files can I merge, and can they be different formats? MP3, WAV, M4A/AAC, OGG, Opus and FLAC files all work, as does the soundtrack of MP4, MOV, MKV and WebM videos. You can mix them freely. Every clip is converted to 48 kHz stereo before joining, so mono recordings and files with different sample rates line up without any extra steps. ### What's the difference between a gap and a crossfade? A gap puts up to 5 seconds of silence between clips. A crossfade overlaps the end of one clip with the start of the next for up to 5 seconds, fading one out as the other fades in at a steady loudness. A crossfade is never longer than half of either clip, so very short clips get a shorter fade. ### How long can the merged file be? Up to 20 minutes on a computer and 5 minutes on a phone or tablet. The whole recording is held in memory while it's built, so longer files could crash the browser tab. The total is checked before any decoding starts. ### What does "Match clip volumes" do? It turns quieter clips up so each clip's loudest moment matches the peak of the loudest clip. Nothing is made louder than your loudest file already is. That evens out recordings made at very different levels. It matches peaks, not perceived loudness, so a heavily compressed track can still sound louder than a quiet, dynamic one. ### Why doesn't it work in my browser? Decoding compressed audio needs the WebCodecs audio features found in current Chrome, Edge, Firefox on a computer and Safari 26 or later. Older Safari versions and Firefox for Android don't have them, so compressed files such as MP3 or M4A can't be read there (WAV files may still work). Opus output only appears if your browser can encode it. More free tools ## Keep going with the DragBin toolbox [ ### Audio Converter Change a file between MP3, WAV, AAC and other formats. ](/tools/audio-converter/)[ ### Normalize Audio Bring a recording to a consistent loudness. ](/tools/normalize-audio/)[ ### Fade Audio Add a fade in or fade out to a track. ](/tools/fade-audio/) --- Canonical: https://www.dragbin.com/tools/merge-audio