> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bibigpt.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Free Online Audio Joiner

> Merge multiple audio files into one track locally in your browser. Supports MP3, WAV, OGG, AAC. Powered by WebCodecs — no uploads, no sign-up.

## Overview

BibiGPT's Free Online Audio Joiner combines multiple audio clips into a single continuous track — entirely in your browser using the WebCodecs API. Supports MP3, WAV, OGG, and AAC formats. Normalizes clips with different sample rates or channel counts before merging. No server upload, no sign-up required.

## Pain Point

You have separate podcast segments, voice recordings, or music takes that need to be merged into one file — but audio editing software is complex to install and configure, and online tools often require uploading your audio to a remote server.

## Key Features

* Merge up to 5 audio files into a single continuous track
* Supports MP3, WAV, OGG, AAC, and M4A formats
* Automatically normalizes sample rates and channel counts between clips
* Export as MP3, WAV, or AAC
* Powered by WebCodecs — local processing, files never leave your device

## Highlights

WebCodecs-based local processing ensures fast merging and full privacy. Automatic normalization handles mixed source clips (different sample rates, stereo/mono) without manual configuration.

## Use Cases

* **Podcast Production**: Combine separately recorded intro, content, and outro segments into a single episode file
* **Voice Note Batching**: Merge multiple short recordings into one organized audio file
* **Music Takes**: Combine the best takes from a multi-take recording session

## Tips

* Clips are joined in the order they are added; reorder them by removing and re-adding if needed
* If WebCodecs is unavailable (older browsers), the tool will display a warning — use a recent version of Chrome or Edge for best compatibility

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**Related Feature**: [Free Audio Noise Remover](https://bibigpt.co/features/free-audio-noise-remover) — Try it now

**Upgrade to Pro**: Unlock unlimited usage → [View Pricing](https://bibigpt.co/pricing)

## Related Features

<CardGroup>
  <Card title="Free Audio Noise Remover" href="/en/function-usage/platform-function/free-audio-noise-remover" />

  <Card title="Free Online Audio Cutter" href="/en/function-usage/platform-function/free-online-audio-cutter" />

  <Card title="Free Audio Speed Changer" href="/en/function-usage/platform-function/free-online-audio-speed-changer" />
</CardGroup>