Merge Audio Online Free & Fast

Combining multiple audio files into one is as easy as playing. Merge your audiobooks, song clips, podcast segments, or video clips into a single continuous track orinto multiple tracks in parallel.

Upload or drag & drop your audio (MP3, WAV, AAC) or video (MP4, MOV, AVI) here

Audio processing happens in your browser - files never leave your device

How to Use Audio Joiner Online

1. Upload Files

Add your audio files or video via the above upload zone.

2. Arrange & Merge

Drag audio files to arrange them in the order you want. Add a crossfade to make smooth transitions.

3. Save Merged Audio

Listen to your merged audio, and download it in your preferred format.

Why Choose Poindeo's Audio Merger

Simple & Fast

Upload audio files directly in your browser, and they load instantly. Then you can easily set the sequence, add crossfade, and choose output format, etc. It supports MP3, WAV, FLAC, ALAC, and many others for uploading and exporting.

High Quality & Private

Merge audio without quality loss or data leaks. Your final combined audio matches the input quality - no compression. Plus, your files never leave your computer - processing happens locally without server uploads for maximum privacy.

Advanced Options

Need more control? This tool allows you to merge audio files into a single continuous soundtrack and adjust transitions with crossfade. Or, overlay audio tracks to merge parallel - layer background music, or add a voiceover.

One Tool, Many Uses

With a single timeline, you can combine recording materials into one, merge voice notes in order, and create uninterrupted audiobook playlists. With multiple timelines, you can add background music to your voice, overlay sound effects on a track, etc.

FAQs

What is the best audio joiner?

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The best audio joiner should support a wide range of audio formats, offer intuitive drag-and-drop sequencing, and include advanced features like crossfade and track mixing. Try Poindeo's audio joiner with those features for free.

Can I merge different audio formats (MP3 + WAV)?

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Yes, you can merge different audio formats on this page and export as the format you choose. And it supports you to add video files to merge audio.

Are there any file limits?

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You can upload files up to 500MB and no limits for uploading numbers.

Can I cut audio while merging online?

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Yes, you can trim the start or end of your audio clips directly within the editor before merging.