Combine multiple audio tracks into one seamless file. Add crossfades, reorder clips, and export — all in your browser.
Supports MP3, WAV, OGG, FLAC and more
4 simple steps to get started.
Add two or more audio files you want to merge.
Drag to reorder the tracks in your preferred sequence.
Optionally add crossfades between clips.
Download the combined audio file to your device.
Everything you need to edit audio — right in your browser.
Boost low-end frequencies to add depth and punch to your audio.
Merge multiple audio files into a single track seamlessly.
Convert between MP3, WAV, OGG, FLAC, and more formats.
Increase or decrease the volume of your audio files.
Speed up or slow down audio without changing the pitch.
Add smooth fade-in and fade-out effects to your tracks.
Record audio directly from your microphone in the browser.
Adjust bass, treble, and mid frequencies to fine-tune sound.
Reverse any audio file instantly for creative effects.
Create custom ringtones from any audio file you have.
Remove background noise and clean up your audio recordings.
Extract audio tracks from video files quickly and easily.
Shift the pitch of audio up or down without changing speed.
Reduce dynamic range for consistent, polished audio levels.
Remove vocals from songs to create karaoke or instrumental tracks.
Split audio files into equal or fixed-length segments.
Everything you need to know about audio joiner.
Combine multiple audio tracks into one seamless file. Add crossfades, reorder clips, and export — all in your browser. No downloads, no sign-ups, and no accounts. Editing and preview run locally in your browser using the Web Audio API; exporting sends your file over an encrypted connection to our processing server, which deletes it as soon as your download finishes.
Simply upload your audio file — MP3, WAV, OGG, FLAC, or M4A — and use our intuitive editor to make your changes. Upload files, Arrange order, Add transitions, Export merged file. Once you're satisfied, export the result in your preferred format instantly.
Whether you're a podcaster, musician, content creator, or just someone who needs a quick audio edit, Audio Joiner is built for you. It works on any device — desktop, tablet, or mobile — across all modern browsers including Chrome, Firefox, Safari, and Edge.
Files are concatenated in the order you arrange them, up to fifty in a single job. Drag to reorder before exporting: the sequence in the list is the sequence in the output. Formats can be mixed freely — an MP3, a WAV and a FLAC can go into the same job, because each is decoded before being joined and the result is encoded once into whichever format you choose.
With no crossfade, tracks butt directly against each other. That is what you want for spoken word, where a gap or an overlap both sound like mistakes. For music it usually sounds abrupt, which is what the crossfade setting is for: up to thirty seconds of overlap where the outgoing track fades down as the incoming one fades up.
Sample rates are reconciled automatically, so joining a 44.1 kHz podcast recording to a 48 kHz one works without you converting first. Levels are not. If one file was recorded much louder than another the join will be obvious, and no crossfade length hides it — run the quiet file through the Volume Changer, or the whole result through the Audio Compressor, before or after joining.
Choose WAV or FLAC as the output if the merged file is going into further editing, since joining several lossy files and re-encoding to another lossy format stacks up compression artefacts. Everything is decoded locally for preview; the join itself happens on the server after you export, and the uploaded files are deleted as soon as your download completes.
Everything you need to know about Audio Joiner.