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Audio Joiner / MP3 Merger Online

Combine multiple audio files into one. Reorder, preview, export. Files stay on your device.

Supports MP3, WAV, M4A, AAC, OGG, FLAC. Mix formats freely — the tool resamples and matches channels automatically.

Drop audio files or click to add

You can drag multiple files at once

Merge audio across multiple videos

The Loudify iOS app merges audio across multiple video clips with no upload, no size limits.

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What this joiner does

Drop multiple audio files, reorder them, and the tool stitches them into a single MP3 or WAV. Files of different sample rates and channel counts get resampled and matched automatically. Whether you call it an audio joiner, MP3 merger, or audio combiner — it's the same operation: end-to-end concatenation.

Use cases

  • Merge podcast episode segments before publishing
  • Combine voice memos into a single recording
  • Stitch song clips into a continuous mix
  • Create audiobook chapters as one file
  • Combine multiple Discord/Zoom call recordings

Related tools

✂️ Audio Trimmer

🔊 MP3 Volume Booster

🎛️ Audio Fader

🔄 MP3 to WAV