100% in your browser

Free MP3 Joiner Online

Combine up to 10 MP3 files, drag them into order, trim or crossfade tracks, and export one MP3.

Upload MP3 Files to Join

Drop two or more MP3 files here, or import from:

Add two or more MP3 files to start.

What is an MP3 joiner?

An MP3 joiner combines several MP3 files into one MP3 in the order you choose. It removes the need to convert every file separately or manage a full audio-editing project.

This page accepts MP3 sources only and keeps the output workflow focused on a single compatible MP3 file.

MP3-only project

Add up to 10 MP3 files and keep MP3 as the final delivery format.

Set the exact order

Move files up or down and confirm the complete sequence before processing.

Trim and crossfade

Remove unwanted starts or endings and overlap adjacent MP3 tracks when the transition should be smoother.

Preview the merged MP3

Listen through the joined timeline, then render and download one MP3.

How to merge MP3 files online

Combine up to 10 MP3 files, drag them into order, trim or crossfade tracks, and export one MP3.

  1. 1

    Upload MP3 files

    Add two or more MP3 tracks to the joiner.

  2. 2

    Arrange the order

    Move each file until the sequence matches the final result you want.

  3. 3

    Trim or crossfade

    Adjust track boundaries and enable transitions where needed.

  4. 4

    Join and download MP3

    Preview the sequence, merge it in the browser, and save the final MP3.

When to merge MP3 files

Combine voice memos

Place several spoken recordings in chronological or topic order.

Join music tracks

Create a continuous listening copy with optional crossfade between songs.

Assemble MP3 chapters

Merge lessons, audiobook sections, or presentation audio into one file.

Create one upload

Replace several separate attachments with one ordered MP3 for a website, form, or message.

MP3 Joiner vs. Audio Joiner

ToolAccepted inputOutputBest for
MP3 JoinerMP3 onlyMP3A focused MP3 merging workflow
Audio JoinerMixed audio formatsMP3, WAV, M4A, FLAC, OGG, AACCombining files delivered in different formats

Related audio editing tools

Continue with a more focused editor or return to the complete Audio Editor for a broader timeline workflow.

Frequently Asked Questions

Can I join MP3 files in a specific order?

Yes. Arrange the tracks before rendering; the final MP3 follows the displayed sequence.

Yes. Every track has its own start and end controls.

Yes. Enable crossfade after a track to overlap it with the next track.

The current precise timeline renderer decodes the tracks and creates a new MP3 so trimming and crossfade can be applied consistently.

You can add up to 10 files in one browser project.

Use the Joiner for ordering complete files. Use the Editor when you need to split and rearrange several sections inside a file.