Audio Joiner
Merge and combine audio files online, free and private.
100% in your browser — nothing is uploaded
Audio Joiner
The Audio Joiner stitches multiple audio files into one continuous track, right in your browser. Add two or more clips — in any order you like — and the tool decodes each one locally, matches them to a common format, joins them end to end, and exports a single WAV you can download. No upload, no signup, no watermark. Combining audio is a constant need: stitching the sections of a song together, assembling a podcast from separate segments, chaining loops into a longer bed, building a mix of AI-generated clips, or simply joining a series of takes. Tools that do this usually require uploading every file to a server; this one keeps everything on your device with the Web Audio API, so even unreleased material stays private. It handles the fiddly parts for you — files with different sample rates or channel counts are resampled and aligned so the join is seamless rather than glitchy. Add files, reorder or remove them until the sequence is right, then join and download. The result is a lossless WAV, ready to drop into a video, a podcast, a DAW, or a set. If a joined file is larger than you need, run it through the Audio Compressor; if you only want part of a clip before joining, trim it first with the Audio Trimmer. Like the rest of the hub, it is free, private, and built to just work — no account, no install, and no upload, just add your clips, set the order, and download one seamless track.
How to use it
- 1
Add your clips
Drag in two or more audio files, or browse. Each is decoded locally — nothing uploads.
- 2
Order them
Arrange or remove clips until the sequence is exactly how you want it to play.
- 3
Join & download
Combine them into one continuous track and download it as a single WAV.
Made for AI music creators
Built a set of AI-generated clips? Join them into one seamless track here, then export — privately, with nothing uploaded.
Frequently asked questions
How many files can I join?
As many as you like, within the 20 MB-per-file limit. Add them in any order, reorder or remove them, then join into a single track.
Do the files need to be the same format?
No. The joiner resamples and aligns files with different sample rates or channel counts so the join is seamless. The output is a single lossless WAV.
Is my audio uploaded to join it?
No. Everything is decoded and combined in your browser with the Web Audio API, so your files never leave your device.
Will there be a gap or glitch between clips?
No — the clips are concatenated sample-accurately after being matched to a common format, so they play back-to-back without gaps or artifacts.
The joined file is large — what can I do?
WAV is uncompressed, so combined files can be sizeable. Run the result through the Audio Compressor to reduce it, or trim clips first with the Audio Trimmer.
Audio Joiner
Merge and combine audio files online, free and private.