Audio Trimmer / Cutter
PopularNewTrim or cut a section of an audio file by selecting a precise start and end time.
Your files are processed entirely in your browser. Nothing is uploaded to any server, and your documents never leave your device.
What is Audio Trimmer / Cutter?
An audio trimmer keeps only the section of a sound file between a start and end point you choose. Preview the audio in the built-in player, set the two points with sliders or exact times, and the file is cut locally with FFmpeg. For common formats the audio is cut without re-encoding, so trimming is nearly instant and the quality is untouched.
Why use Nuo Tools's Audio Trimmer / Cutter?
How to use Audio Trimmer / Cutter
Drop your audio file into the tool and preview it in the player.
Set the start and end points with the sliders or the exact time boxes.
Click Trim to cut the selection locally.
Download the trimmed clip.
Frequently asked questions
Does trimming reduce audio quality?+
No. For common formats like MP3, WAV, M4A, and OGG the selected section is copied without re-encoding, so it is bit-identical to the original. Unusual formats are converted to MP3 at high quality.
How precise are the cut points?+
WAV files cut sample-exact. Compressed formats like MP3 cut at frame boundaries, which are about 25 milliseconds apart - imperceptible for nearly all uses.
Is my audio uploaded while trimming?+
No. FFmpeg runs inside your browser through WebAssembly and the file never leaves your device.
Can I cut out the middle and keep both ends?+
The tool keeps one continuous selection. To remove a middle section, trim the two parts you want to keep separately and join them with the Audio Merger tool.
What formats can I trim?+
MP3, WAV, M4A/AAC, OGG, FLAC, and most other formats FFmpeg reads. The output keeps the same format when possible.
When to use this tool
- →Cutting the dead air off the start and end of a recording
- →Extracting one answer or quote from a long interview
- →Clipping your favorite section of a song
- →Shortening a voice memo before sending it
- →Pulling a highlight out of a podcast episode