🎶

Gratuit 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.

Aucune limite de taille de fichierLes fichiers restent privésAucune connexion requiseGratuit pour toujours

Déposez des fichiers ici ou cliquez pour parcourir

MP3, WAV, FLAC, OGG, AAC, M4A, Audio aucune limite de taille de fichier

Vous pouvez déposer plusieurs fichiers à la fois

Parcourir les fichiers

Vos fichiers ne quittent jamais votre appareil. Tout le traitement se fait localement dans votre navigateur.

Optimize for your platform

Comment ça marche

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. 1
    FFmpeg.wasm loads once
    The WebAssembly build of FFmpeg (~30 MB) downloads on first use and is cached afterwards.
  2. 2
    You add and order your files
    Drop in multiple audio files and arrange them with the up/down controls. Nothing is uploaded.
  3. 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. 4
    Download the merged file
    The result is encoded once to MP3, M4A, or WAV and offered for download.

No upload, no queue, no watermark. Combine podcast segments, voice memos, or music privately — your audio never leaves your device.

Pourquoi utiliser le nôtre ?

Completely free — no hidden costs, ever
No account, email, or login required
Files stay on your device — processing happens in your browser
Works on any device — phone, tablet, desktop
No watermarks on any output
Browser memory limits may apply for very large files

Outils associés

Cet outil vous a-t-il été utile ?

Questions fréquemment posées