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Overlap Audio Files
Overlap two audio files so they play at the same time. Layer music, voiceovers, and sound effects together. Free, private, browser-based audio overlapper.
Overlapping audio files means playing two or more tracks at the same time in a single file — background music under narration, ambience under dialogue, stacked vocal takes. EditClips.online overlaps audio directly in your browser: add the files, balance each track's volume and timing, click Process, and download the mixed result as MP3, WAV, AAC, FLAC, or OGG. Nothing uploads to a server, and no sign-up is needed.
Drop files here or click to browse
Max 100 MB per file · drop multiple for batch
or press Ctrl+V to paste
100% private — files never leave your device
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Free — no sign up, no watermark
Upload a file to get started
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How to Use Overlap Audio Files
Upload the first audio track (e.g. vocals or main audio)
Upload the second audio track (e.g. background music or sound effects)
Click Process to mix both tracks together
Download the mixed audio file
Features
Mix two audio tracks to play at the same time
Perfect for background music, sound effects, or layering
Supports MP3, WAV, AAC, FLAC, and OGG
Free and private — no server upload
Frequently Asked Questions
How do I overlap two audio files?
Upload both audio files and click Process. The tool mixes them together so both tracks play simultaneously.
What's the difference between joining and overlapping?
Joining (combine) plays files one after another. Overlapping (mix) plays them at the same time, layering the sounds together.