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 your audio file
Enter start/end timestamps
Download the trimmed result
0 bytes uploaded. Audio Trimmer / Cutter 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.
Two modes. By default JAD re-encodes the trimmed range once for sample-accurate cut points. Enable Lossless and, when the output format matches the source (MP3, M4A, AAC, FLAC, WAV, OGG, or Opus), JAD stream-copies the range with no re-encode at all — cut points snap to the nearest packet boundary (about 30 ms). It automatically falls back to a re-encode if a stream-copy isn't possible.
Split 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 toolConcatenate MP3, WAV, FLAC, M4A files end-to-end. Optional crossfade between tracks. All processing local.
Open toolApply linear, exponential, or logarithmic fades at the start and end of any audio file. Adjustable duration.
Open tool