Free Audio Merger
Combine multiple MP3, WAV, OGG, FLAC, AAC or M4A files into one — with optional crossfade between tracks. 100% in your browser. Your audio never leaves your device.
Drop audio files here
or click to browse — merged in your browser, never uploaded
Your file is never uploaded. All merging happens in your browser — nothing is sent to a server. Privacy policy.
Crossfade smoothly blends the end of one track into the start of the next instead of an abrupt cut. The longer the fade, the more gradual the blend. Use it for DJ-style mixes, podcast intros that flow into a music bed, or to hide a transition where two tracks meet.
Listen to the same two tracks transition at different durations:
Examples use the demo Handel track — first 3 seconds blended into the last 3 seconds.
Combine Audio Files Online — Free, Private, No Sign-up
SnipSound's audio merger joins two or more audio files into a single track right in your web browser. Drop in MP3s, WAVs, OGGs, FLACs, AACs or M4As (or any mix of formats), reorder them, optionally crossfade between them, and download the combined file. Nothing is uploaded.
What you can do
- Concatenate songs end-to-end — build a single MP3 from a playlist.
- Stitch podcast segments — intro music, interview, outro — into one episode file.
- Crossfade between tracks for DJ-style mixes (0 to 3 seconds).
- Mix different formats — the merger decodes each file independently and re-encodes the result in whatever format you pick.
- Reorder freely — use the up and down arrows beside each track before you merge.
Why merge audio in the browser
- 100% client-side. Other mergers upload your files to a server. We don't — the audio never leaves your device.
- No file size limit. Most online tools cap uploads at 50–250 MB. The only limit here is your device's memory.
- No sign-up, no ads, no watermarks.
- Mix any input formats. MP3 + WAV + FLAC together — no problem.