Can I merge files in different formats?

Yes. You can add MP3, WAV, FLAC, OGG, and other formats together. FFmpeg converts them all to the target format before joining.

Is there a limit to how many files I can merge?

There is no file count limit, but browser memory limits apply. For very long files, keep total combined size under 500MB for best results.

Will there be silence or gaps between the files?

No. Files are joined end-to-end without any added silence. If you want gaps, add a short silent audio clip between files.

Are my files uploaded to a server?

No. All merging runs entirely in your browser using WebAssembly. Nothing is uploaded.

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Audio Merger and Joiner Online Free

Join two or more audio files into a single track in your browser. Add files, drag to reorder them, choose the output format (MP3, WAV, FLAC, OGG, or M4A), and download the merged result. Supports any audio format that FFmpeg can read. Your files never leave your device.