Free is enough for most one-off jobs. Pro raises the file and batch caps; Pro + Media unlocks GB-scale streaming and unlimited duration.
Larger files supported on Developer (5 GB CSV) and Enterprise (unlimited). All processing happens in your browser — files never reach a server.
Drop 2+ audio files in order
Optional: set crossfade duration
Download the merged file
0 bytes uploaded. Audio Merger / Joiner runs entirely in your browser using FFmpeg.wasm 8.1, RNNoise, and the Web Audio API. Your audio stays on your device at all times. No data is sent to any server — critical for sensitive interviews and confidential calls.
No — JAD normalises sample rate and channels before merging, so you can mix MP3, WAV, M4A, and FLAC freely.
Cut start/end timestamps from any audio file. JAD re-encodes once at the source quality — your file never leaves the browser.
Open toolSplit a long audio file into multiple parts by fixed duration, manual timestamp markers, or automatic silence detection. Each part downloads as its own file.
Open toolApply linear, exponential, or logarithmic fades at the start and end of any audio file. Adjustable duration.
Open tool