Merge multiple audio files into one - reorder them, then export as MP3 or WAV.
Free, runs in your browser.
Your files never leave your device - joining runs locally, so even a dozen tracks merge into one in seconds with no upload wait.
Find SoundCloud channels that match your genre and book premieres or reposts - directly from Premierely.
Explore channelsAn audio joiner merges two or more separate audio files into a single continuous track, in the order you choose. This tool decodes every file you add, resamples any that don't share the same sample rate, and concatenates them sample-for-sample into one output - then lets you preview and download the result. It runs entirely in your browser: your files never upload to a server.
Combining tracks takes four steps:
Yes. Input formats mix freely - WAV, MP3, M4A, FLAC, OGG, AAC and Opus can all sit in the same list. Each file decodes to raw audio independently, so the format it started in doesn't matter once it's part of the merged track.
Each file can be up to 100 MB, and there's no cap on how many files you add to a single join. Output is MP3 at 128-320 kbps or uncompressed WAV.
Note: OGG and Opus input may not decode in Safari - use Chrome or Firefox for those formats.
Combining a 44.1 kHz file with a 48 kHz file without correcting for it causes audible pitch and speed shifts at the seam. This tool finds the highest sample rate among your files and resamples every other file up to match before concatenating, so the join is clean regardless of what each source file started as.
Joining combines separate files into one - different from trimming a section out of a single file (use the MP3 cutter) or smoothing a transition (use the audio fade tool). A common combo: cut the sections you want from each source, fade the edges, then join them into one final track.
Merged your tracks? Premierely connects artists with SoundCloud channels for premieres and reposts - matched by genre.
Find channels on PremierelyDrop two or more files onto the tool. Reorder them with the up and down arrows if needed, hit Join, then pick MP3 or WAV and download the merged track.
Yes. Mix any input formats freely - each file decodes independently before joining, so an MP3 and a WAV (or M4A, FLAC, OGG, AAC, Opus) combine into one seamless output.
Up to 100 MB per file, with no limit on how many files you add.
The tool resamples every file to match the highest sample rate in your list before joining, so there is no pitch shift or quality mismatch at the seam.
Yes. Use the up and down arrows on each file card to reorder before joining - the merged file plays back in that exact order.
No. Decoding, resampling and joining all happen in your browser using the Web Audio API. Your files never leave your device.
Need to trim before joining? Use the MP3 cutter to cut each clip first. Converting formats? The audio converter handles M4A, FLAC, OGG, AAC and Opus. Add smooth transitions with the audio fade tool, or flip a track backwards with the audio reverser. Every tool runs free in your browser with no upload.