Merge Audio

Combine audio tracks in your browser

Merge multiple recordings or music clips into one audio file. Add files with the file picker or drag and drop, move tracks up or down, remove unwanted files and set a start and end time for each clip. The output follows the order in the list. Files are decoded using the browser and are not uploaded.

Crossfades at the joins

Without crossfade, each selected clip follows the previous one. Crossfade overlaps adjacent clips, fading one out while the next fades in. The default overlap is half a second and can be adjusted up to five seconds. For short clips, overlap is reduced to at most half of each neighbouring clip, avoiding conflicting overlaps. Crossfades shorten the combined duration.

WAV, MP3 and OGG exports

WAV uses lossless 16-bit PCM. MP3 provides 96, 160 or 256 kbps settings. OGG Vorbis uses low, medium or high quality. All three formats are encoded locally. Select 44,100 or 48,000 Hz and auto, mono or stereo output. Auto uses stereo when any source is stereo, otherwise mono; mono sources duplicate into both stereo channels. Converting stereo to mono averages its channels.

Preview and limits

Listen to the merged output before downloading. Changes to track order, trims or output settings clear the old result so it cannot be confused with the next merge. Each input is limited to 100 MB; combined input is limited to 250 MB, ten minutes and a decoded-memory budget. Unsupported or damaged files are reported by name while valid files remain available. Browser codec support varies; WAV and MP3 are common input choices. Resampling, lossy encoding and crossfades can change the waveform. Original files remain unchanged.