MP3Conv

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Join & Merge MP3 Files

Stitch multiple audio files into one continuous track. Add files, reorder, then export.

About the MP3 merger

Merge two or more MP3 or audio files into one continuous track. The output keeps original quality whenever the inputs share a format and codec — no re-encoding, no glitches between segments.

Use it to combine podcast segments, build a long DJ mix from individual tracks, or stitch chapters of an audiobook into a single file.

How to merge audio files

  1. 01

    Add your files

    Drop two or more audio files into the page. They appear in the order you add them.

  2. 02

    Reorder

    Use the up and down arrows to put the files in the order you want them played.

  3. 03

    Merge & download

    Click merge — the joined file is ready in seconds.

Why use this MP3 merger

  • Lossless merging when files share format and codec
  • Reorder your files with one click
  • Mix formats — output falls back to MP3 192k automatically
  • Free and private — we don't analyse or index your files
  • Works on phones, tablets and desktops
  • Free, unlimited, no watermark

Merger FAQ

Will the join points have audible glitches?

No. When all your files share format and codec, the engine uses stream-copy, which is bit-perfect across boundaries. For mixed formats the result is re-encoded at 192 kbps MP3 with smooth transitions.

How many files can I merge?

There is no fixed cap, but very large counts (100+) can be slow due to memory limits.

Can I mix MP3 with WAV or FLAC?

Yes. The tool detects mismatched formats and re-encodes everything to MP3 so the result plays smoothly.

Are the files private?

Yes — we don't analyse or index your files.

Cut, join, trim, fade

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