Merge Audio Files

Audio Merger concatenates two or more audio files into a single file in the order you choose. The tool accepts multiple files at once and lets you reorder the sequence before processing.

To use it, select the audio files you want to join — you can add several at once or include additional files afterward. The list shows each track's name and size, and you can reorder tracks using the up and down buttons or remove individual files. When the order is correct, click Merge. Processing is handled locally by ffmpeg.wasm, with no data sent to any external server. The merged file is available for download as soon as processing finishes.

Common use cases: joining podcast recordings captured in separate segments into one episode file; merging audio tracks to create a continuous mix or playlist; combining narrations recorded in multiple takes; assembling a soundtrack from several short samples; bringing together recordings from different participants in a presentation.

The tool performs concatenation without re-encoding (copy mode), which preserves the original quality and makes processing faster. For best results, use files with the same format and sample rate. The tool is free, no sign-up required, and works on desktop and mobile with modern browsers.