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Ilmainen Audio Joiner

Merge multiple audio files into one, in any order, with optional crossfade. Export as MP3, M4A, or WAV. Runs entirely in your browser — no upload.

Ei tiedostokokorajoitustaTiedostot pysyvät yksityisinäEi kirjautumista tarvitaIlmainen ikuisesti

Pudota tiedostot tähän tai napsauta selataksesi

MP3, WAV, FLAC, OGG, AAC, M4A, Audio ei tiedostokokorajoitusta

Voit pudottaa useita tiedostoja kerralla

Selaa tiedostoja

Tiedostosi eivät koskaan poistu laitteeltasi. Kaikki käsittely tapahtuu paikallisesti selaimessasi.

Optimize for your platform

Stitching audio files together normally means an upload to an ad-heavy site. This merges them with the real FFmpeg engine running in your browser.

1
FFmpeg.wasm loads once
The WebAssembly build of FFmpeg (~30 MB) downloads on first use and is cached afterwards.
2
You add and order your files
Drop in multiple audio files and arrange them with the up/down controls. Nothing is uploaded.
3
FFmpeg concatenates them
The tracks are joined in order — back-to-back, or with a smooth crossfade between each — using FFmpeg's concat/acrossfade filters, all on your CPU.
4
Download the merged file
The result is encoded once to MP3, M4A, or WAV and offered for download.