Audio Trimmer
Cut MP3, WAV, M4A, OGG, and FLAC audio in your browser. Sample-exact waveform editor with fade in/out and ringtone presets.
What is an audio trimmer?
An audio trimmer cuts a section out of an audio file — keeping the part you want and discarding the rest. The most common reasons to trim audio are creating ringtones, isolating quotes from podcasts or interviews, removing silence or applause from concert recordings, and producing short clips for video voice-overs or social posts. A proper audio trimmer works directly on the audio waveform so you can see exactly where each cut lands and apply a short fade to avoid the audible click that an abrupt cut produces. This tool runs entirely in your browser using the Web Audio API and a lamejs MP3 encoder running in a Web Worker, so the audio you drop in never leaves your device. Need to convert formats instead of just trim? Pair it with the upcoming audio converter.
Drop your audio file here
.MP3, .WAV, .M4A, .AAC, .OGG, .OGA, .FLAC, .WEBM · up to 200.0 MB. Everything stays in your browser — no upload, no server.
How to use this tool
- 1Drop your audio file inDrag any MP3, WAV, M4A, OGG, or FLAC file onto the dropzone. The file is decoded locally — no upload happens.
- 2Drag the trim handles on the waveformTwo handles mark the start and end of your selection. Drag them to where you want to cut, or use the typed time inputs for precision.
- 3Nudge with the keyboard for sample-precisionArrow keys move the handles by 0.01s. Hold Shift for 1s steps. Use Play to preview just the selection, Loop to repeat it.
- 4Add fade-in or fade-out if neededToggle either fade and set the duration. Use a short 0.2-0.5s fade to avoid clicks at cut points, or longer fades for ringtones.
- 5Export to MP3 or WAVPick a bitrate for MP3 (192 kbps is a good default) or choose WAV for lossless. Click Trim & download — the encoded file saves to your downloads folder.