Merge Audio Files Online - Combine MP3, WAV Free
Last Updated: April 1, 2026
Last updated: 2026-03-10
You recorded a podcast in 3 segments and need one continuous file. Merging should be drag, drop, done.
How It Works
- Upload files (any format)
- Reorder by dragging
- Set crossfade (0-5 seconds)
- Choose output format
- Merge and download
Crossfade Options
| Duration | Effect | Best For |
|---|---|---|
| 0 sec | Hard cut | Podcasts, audiobooks |
| 1-2 sec | Smooth transition | Music playlists |
| 3-5 sec | Long fade | Ambient, meditation |
Tips
- Same format files merge fastest
- Mixed formats get re-encoded to your chosen output
- Match bitrate to avoid unnecessary re-encoding
Merge audio files - free, with crossfade.
Open Audio Merger →Related Tools
According to MDN, Web Audio API enables browser-based audio processing.
As Library of Congress, WAV is preferred for lossless archival.
Frequently Asked Questions
Is this audio tool free?
Yes, all audio tools on MP3-AI.com are completely free to use.
What audio formats are supported?
We support MP3, WAV, AAC, FLAC, OGG, M4A and most common audio formats.
Is my audio file kept private?
Audio files are deleted from our servers immediately after processing.
What is the maximum audio file size?
We support audio files up to 500MB.
Can I process multiple files at once?
Yes, batch processing is available for most audio tools.
User Reviews
"Great quality output. The AI features are surprisingly good for a free tool."
Designer"I use this daily for my projects. The best free tool I've found online."
Freelancer"I recommend this to all my students. Simple and effective."
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