How to use the MP3 Joiner
- Choose two or more files. They are joined in the order shown; remove and re-add to change it.
- Pick the output format and quality.
- Click Join files.
- Download the combined track.
Mixing formats
You can join MP3, M4A, WAV, OGG, FLAC and others in one go. All parts are converted to the same sample rate and stereo before joining, so there are no speed changes or glitches at the joins.
Ideas
- Combine audiobook chapters into one file.
- Join a podcast intro, episode and outro.
- Make a continuous mix or playlist file.
Good to know
Every file is converted to 44.1 kHz stereo before joining, so files with different sample rates or channel counts join without speed changes or clicks. You can join up to 20 files.
Supported files
MP3, WAV, M4A, AAC, OGG, OGA, FLAC, OPUS, WMA, AIFF, AIF, AIFC, ALAC, AMR, AC3, MP2, M4B, M4R, CAF, AU, WEBA, 3GA, APE and VOC. Files up to 1 GB each.
Frequently asked questions
How many files can I join?
Up to 20 files at once, within the 1 GB per-file limit.
Do I have to pay or sign up to use the MP3 Joiner?
No. There is no account, no payment and no watermark. The only limit is 1 GB per file, set by what browsers can handle.
Are my files safe?
Yes. Files are converted locally in your browser and are never uploaded. When you close the page, nothing is left behind.
Does it work on iPhone and Android?
Yes, in Safari, Chrome and other modern mobile browsers. Short files work best on phones; for long or high-resolution videos a computer is faster.