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Percuma 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.

Tiada had saiz failFail kekal peribadiTiada log masuk diperlukanPercuma selama-lamanya

Lepaskan fail di sini atau klik untuk layar

MP3, WAV, FLAC, OGG, AAC, M4A, Audio tiada had saiz fail

Anda boleh melepaskan beberapa fail sekaligus

Layar fail

Fail anda tidak pernah meninggalkan peranti. Semua pemprosesan berlaku secara tempatan dalam pelayar anda.

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.