Add two or more files, drag in more any time, and reorder them — they are joined head to tail in the order shown. Everything is decoded, joined and encoded in your browser — nothing is uploaded. WAV is lossless; MP3 is re-encoded with LAME. Input: MP3, WAV, M4A, OGG and more (whatever your browser can decode).
An audio joiner that merges several audio files into one. Drag and drop or choose two or more MP3, WAV, M4A, OGG or other files (whatever your browser can decode), reorder them with the "↑ / ↓" buttons and drop the ones you don't want with "✕". Click "Join & download" and the files are combined head to tail in the order shown, then exported as MP3 (re-encoded with LAME at 128–320 kbps) or WAV (lossless, uncompressed). Files with different sample rates or channel counts are automatically matched to the highest sample rate and stereo/mono before joining, so you can mix MP3 and WAV freely. Use it to combine several recorded takes into one track, concatenate voice memos or lines in order, merge clips into a single file for continuous playback, or stitch podcast and audiobook chapters together. Decoding, joining and encoding all happen entirely in your browser — files are never uploaded, stored or sent to a server. No install, no sign-up, free to use.
How to use
- Drop two or more audio files (MP3 / WAV / M4A / OGG and more) or use "choose files" to load them.
- Reorder them with the "↑ / ↓" buttons, and drop any you don't want with "✕".
- Pick the output format (MP3 / WAV) and click "Join & download" to save the merged file.
FAQ
Are my audio files uploaded?
No. The audio you load is decoded, joined and encoded inside your browser — it is never uploaded, stored or sent to a server. Everything runs locally.
Can I change the order they are joined in?
Yes. Loaded files appear in a list, and each row has "↑ / ↓" buttons to move it up or down. They are joined in the order shown, top to bottom. Use "✕" to remove a file you don't want.
Can I join files with different sample rates or formats?
Yes. Even if files have different sample rates or channel counts (stereo/mono), they are automatically matched to the highest sample rate and maximum channels before joining, so mixing MP3 and WAV works fine.
Should I export as MP3 or WAV?
Choose WAV (uncompressed) to keep the audio lossless, or MP3 (pick 128–320 kbps) to get a smaller file that's easier to share and play.
Can I cut out part of the audio or add silence between files?
This tool only concatenates whole files in order. To cut out a section use the Audio Trimmer / MP3 Cutter, and to change format or quality use the Audio Converter.