Merge audio files into one track. Add two or more files, put them in order, and Solmi joins them back-to-back with click-free transitions — no upload, no signup, and your audio never leaves your device. Mix formats freely: MP3, WAV, M4A, AAC, OGG, and FLAC.
Add two or more audio files, drag them into the order you want, and press Join. Solmi decodes each file, lines them up back-to-back with a tiny fade at each seam so there are no clicks, and renders one combined file you can play and download — all in your browser.
Yes. You can mix MP3, WAV, M4A, AAC, OGG, and FLAC in one join. Files with different sample rates are automatically resampled to the highest rate among them, so nothing loses quality in the merge.
The combined track downloads as an uncompressed 16-bit WAV — the highest-quality option a browser can produce, and every editor, DAW, and converter accepts it. If you need an MP3, run the WAV through any free converter afterwards.
No fixed limit — join as many as you like. Very long results (hours of audio) mainly depend on your device's memory, since everything is processed locally rather than on a server.
No. The joiner runs entirely in your browser using the Web Audio API. Your files never leave your device, which also makes it fast — there's no upload or download wait.
Yes, completely free with no signup and no watermark. Once your tracks are joined, you can turn the combined song into a music video with Solmi's AI music video generator — also free to start.