Drop Audio Files to Join
MP3, WAV, FLAC, OGG
Need tracks to play at the same time instead? Use the Online Audio Mixer.
Free Audio Joiner — Merge MP3 Files Online
An audio joiner is an online tool that combines two or more audio files into a single, continuous track. This free audio joiner — also called an audio merger, audio combiner, MP3 joiner, or song joiner — lets you join MP3, WAV, FLAC, and OGG files right in your browser, with no upload, no signup, and no watermark. Add your files, drag them into the order you want, and export one joined file. A clean end-to-end join is the default; add an optional crossfade or a short silence gap between clips if you want one. Everything runs locally on Windows, Mac, Linux, or Chromebook — your audio never leaves your device.
How to Join Audio Files Online
Drop your files into the audio joiner (MP3, WAV, FLAC, or OGG). They stack up as a numbered list in playback order — drag any row by its handle to reorder, or remove one with the X. Set a single crossfade for smooth transitions between every clip, or leave it at zero for hard cuts. Optionally add a silence gap between clips, or tick “match loudness” so quieter files are brought up to the same level. Press Play to preview the joined result, then export as a single MP3, WAV, FLAC, or OGG. No upload required.
Assemble a Podcast Episode
Add your intro jingle, the interview or monologue, and your outro, in that order. A short crossfade smooths each seam so there is no abrupt cut between segments. This is the classic audio joiner job — export the finished episode as MP3 for your host (Spotify, Apple Podcasts, Buzzsprout, Anchor) or WAV for archival.
Join Audiobook Chapters and Long Recordings
If you recorded an audiobook chapter by chapter, drop all the chapters into the joiner and they queue up end to end in the order you add them. Drag to reorder, tick “match loudness” to even out sessions recorded on different days, and join them into one continuous file. The same MP3 joiner workflow rejoins a meeting or lecture that got split across several recordings.
Join Audio Files Without Extra Quality Loss
Every clip is decoded once and the joined result is encoded a single time, so you are not stacking generations of MP3 loss. For an untouched master, export the joined file as WAV or FLAC — lossless formats that preserve exactly what went in. As an audio file joiner built for spoken word, cut.audio keeps podcast dialogue and audiobook narration crisp.
Tidy Each Clip Before You Join It
A seam is only as clean as the two clips either side of it, and most raw recordings arrive with something on the front — a count-in, a throat clear, four seconds of finding the record button. Take those off in the Trimmer first: mark what goes, export one tidy file, and it lands in the shared pool ready to add here. Nothing has to be downloaded and re-uploaded in between, and a clip that starts on the first syllable needs far less crossfade to sit right.
Open the Audio Trimmer →Simple Join Queue
Files line up as a numbered list in play order. Drag to reorder, remove with a click. No timeline to learn.Crossfade or Clean Cut
One slider crossfades every seam, or leave it at zero for hard cuts. Add a silence gap between clips if you like.Runs Locally
Join audio on your phone, tablet, Chromebook, or desktop. Nothing is uploaded — your files stay on your device.Frequently Asked Questions
An audio joiner is an online tool that merges two or more audio files into one continuous track, one after another. Also called an audio merger or MP3 joiner, it lets you combine MP3, WAV, FLAC, and OGG files — with an optional crossfade between clips — and export a single file. cut.audio's audio joiner runs entirely in your browser, so nothing is uploaded.
Drop your MP3 files into the audio joiner. They line up as a numbered list in playback order — drag to reorder, then Export to render one combined MP3. Add a crossfade or silence gap between clips first if you want.
Yes. Add your intro, main segment, and outro in order. Set a short crossfade so the segments blend smoothly, then export as MP3 for Spotify, Apple Podcasts, or any hosting service.
Set the crossfade slider to the length you want — say 2 to 3 seconds. That crossfade is applied at every seam, so each clip fades out as the next fades in. Leave it at zero for clean, hard cuts.
Enough for a full audiobook or playlist. Drop them all at once, drag to reorder, and join them into a single file. The only real limit is your device's memory, since nothing is uploaded to a server.
Yes. Drop each chapter into the joiner end to end. Tick “match loudness” if some chapters were recorded louder than others, then export as MP3 or FLAC.
Yes. No signup, no watermark, no file size limit, no usage quota. Audio is processed locally — nothing is uploaded to any server.