Audio Joiner

Live

Secure

Fast

Merge multiple audio files into one with fade effects

Video & Audio

Sign in for free to access this tool.

This tool requires you to sign in.

About Audio Joiner

Audio Joiner lets you seamlessly merge multiple audio files into a single track with professional fade effects. Whether you are combining podcast segments, creating DJ mixes, or assembling audiobook chapters, this tool streamlines the process without quality loss or server uploads.

Perfect for content creators, podcasters, and audio enthusiasts, Audio Joiner processes everything locally in your browser for complete privacy and instant results. Customize fade-in and fade-out transitions between clips to create smooth, polished audio compositions effortlessly.

Local only

Privacy-safe

No limits

Files processed

Browser-based

Instant results

Lossless

Audio quality

How to use Audio Joiner

Upload Audio Files

Select and upload the audio files you want to merge, or drag them into the workspace.

Arrange & Customize

Reorder tracks, set fade durations, adjust volumes, and preview your composition to perfection.

Export Your Mix

Download your merged audio file instantly in your preferred format.

Pro Tips

Use fade overlaps to create smooth DJ-style transitions between tracks-overlap fade-outs and fade-ins by 1-2 seconds for professional results.
Normalize all audio levels before joining to avoid jarring volume jumps between clips and ensure consistent playback across your mix.
Preview individual transitions before finalizing to catch timing issues early and save export time.
Export as WAV for maximum quality when archiving, then convert to MP3 only when sharing to preserve original fidelity.