Editing & Splicing
Audio Merger & Joiner
Combine multiple audio tracks into a single seamless file in your browser. Reorder tracks, customize crossfade transitions, and export lossless WAV with zero quality loss.
Drop audio file here or browse files
Supports MP3, WAV, M4A, OGG, FLAC, AAC · 100% In-Browser
How It Works
1
Add Your Files
Upload two or more audio files in any order. Reorder or remove tracks as needed — the merge follows your queue top to bottom.
2
Auto-Normalize & Transition
Files with mismatched sample rates are automatically resampled to maintain flawless alignment. Choose between smooth crossfades or timed gaps.
3
Download One File
The joined audio is processed directly on your machine and exported as a studio-quality lossless WAV file with zero server uploads.
Frequently Asked Questions
How many audio files can I merge at once?
There is no hard limit — you can merge as many files as your browser memory allows. For extremely large sets (e.g. 20+ tracks), merging in smaller batches ensures peak responsiveness.
Do files need to have the same sample rate?
No. The merger automatically detects and resamples all files to match the sample rate of your initial track using high-fidelity offline audio rendering.
What happens if files have different channel counts?
Mono tracks are cleanly mixed or expanded alongside stereo tracks. For optimal stereo field coherence, using matching channel counts is recommended.
Is the output lossless?
Yes. Merged audio exports as an uncompressed 16-bit PCM WAV file, guaranteeing broadcast-grade clarity with zero re-encoding artifacts.
Are my audio files uploaded to any server?
Never. All decoding, crossfading, and stitching executes purely on your device via client-side Web Audio APIs. Your audio remains 100% private.