Audio Trimmer
Cut the part of a recording, song or podcast you want to keep. Choose the start and end precisely, listen to the selection, and download the trimmed audio — processed on your device.
1. Audio file
Local · not uploadedDrop an audio file here
or click to browse
Processing uses the bundled open-source libav.js engine (FFmpeg libraries, LGPL-2.1), loaded from this site only. Licences and source code.
2. Start, end & format
Sample-accurateResult
Listen before downloadingAbout Audio Trimmer
Audio Trimmer cuts an audio file down to the part you want to keep. Choose the start and end with draggable handles, by typing exact times, or from the current playback position, listen to the selection, and save it as MP3, WAV, FLAC, Ogg Vorbis or Opus. Decoding, sample-accurate trimming and encoding are done in your browser by libav.js, an open-source WebAssembly build of FFmpeg’s libraries that is loaded from this site.
Trimming silence from a recording, cutting a ringtone or keeping one answer from an interview usually means installing an editor or uploading the file to a website. Here the file stays on your device. WAV-to-WAV trims keep the original samples exactly; lossy formats such as MP3 are re-encoded, which costs a little quality, and M4A/AAC files are not supported by the bundled engine.
Step by step
- Drop an MP3, WAV, FLAC, Ogg, Opus or WebM audio file onto the upload area.
- Wait while the media engine loads from this site and reads the file’s length.
- Drag the start and end handles, type exact times, or play the audio and use the playback-position buttons.
- Press Play selection to check the part you will keep.
- Choose the output format and, for MP3, Ogg or Opus, the bitrate.
- Press Trim audio, listen to the result and download it.
What it offers
- Runs in your browser with a bundled libav.js (FFmpeg) engine — no upload
- Draggable start and end handles plus exact time fields
- Set start or end from the current playback position
- Play just the selected range before trimming
- Sample-accurate cuts based on decoded samples
- MP3, WAV, FLAC, Ogg Vorbis and Opus output
- Shows original length, trimmed length, output size and real progress
- Clear errors for empty, damaged, unsupported and too-long files
Tips for best results
- Keep the original file until you have checked the trimmed result.
- Choose WAV or FLAC when you plan to edit the audio further.
- Use 192 kbps or higher for music in MP3 and 96–128 kbps for speech.
- Zoom in with exact times for precise cuts on long recordings.
- Convert M4A recordings to a supported format with another app first.
Why people use it
Private
Audio never leaves your device.
Precise
Cuts at the exact sample you choose.
Flexible
Five tested output formats.
Honest
Real progress and clear format limits.
Common questions
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.