MP3 Joiner
Merge MP3 files into one. Nothing is uploaded.
Drop audio files to join
Add two or more files. MP3, WAV, M4A, OGG, FLAC and more
Your files never leave your browser.
More audio joiners
Every audio format has its own page, like MP3 Joiner or WAV Joiner. Pick one to open it.
MP3 joiner online
MP3 (MPEG Audio Layer III) is the most widely used compressed audio format. This MP3 joiner merges .mp3 files into one. Put the tracks in order, add a gap or crossfade, cut the silence, preview the result and save it as WAV or MP3, all in your browser.
- Join as many MP3 files as you need. Add up to 30 files at once, or drop them in one by one. Different formats can be mixed in the same project.
- Reorder in one tap. Move any track up or down, or remove it. The timeline updates straight away so you can see the final order.
- Gap or crossfade. Leave a short silence between tracks, or overlap them with a smooth equal-power crossfade.
- Silence cutter. Trim dead air from the start and end of every track, or shorten long silent gaps, so the clips join tight like a remix.
- Preview the whole result. Play the joined audio from any point, scrub the timeline and loop it before you download.
- Saves as MP3. Save an MP3 at 96 to 320 kbps, or switch to lossless WAV.
- Private by design. Joining happens in your browser. Your audio is never uploaded or stored.
Uses of a MP3 joiner
- MP3 is used for music, podcasts and audiobooks. Join several MP3 files into one so there is a single file to play, share or upload.
- Podcasts and voice recordings. Put an intro, the main recording and an outro into one episode file.
- Music mixes and playlists. Combine songs into one continuous track, with crossfades between them.
- Audiobooks and lectures. Merge chapters or recorded parts into a single file.
- Voice messages and interviews. Stitch short clips together so they can be shared as one.
MP3 joiner questions
How do I join MP3 files?
Choose two or more MP3 files, put them in the order you want, press Play to check the result and then download it. Everything runs in your browser, so nothing is uploaded.
Can I join MP3 with other formats?
Yes. Any formats your browser can play work together, which usually includes MP3, WAV, M4A, AAC, OGG, Opus and FLAC. Sample rates and mono or stereo files are matched automatically.
Will joining lower the quality of MP3 audio?
MP3 is a compressed format, so the audio is decoded, joined and encoded again. At 192 kbps or more the difference is hard to hear. Choose WAV if you need a perfect copy.
Is the joined file saved as MP3?
Yes. MP3 is preselected under Save as, so MP3 files in give you an MP3 out. You can choose WAV instead.
What is the difference between a gap and a crossfade?
A gap adds silence between tracks. A crossfade overlaps the end of one track with the start of the next, fading one out while the other fades in. A crossfade makes the final file shorter by the overlap.
Is there a size limit?
Each file can be up to 200 MB, you can add up to 30 files and the total length can be up to 3 hours.
Does it work on a phone or tablet?
Yes. The buttons are large enough for touch and the layout adapts to any screen.