Runs entirely in your browser - no upload, no sign-up.
Your source and trimmed audio stay in this browser tab. The audio is never uploaded.
An audio trimmer cuts a chosen section from an MP3, WAV, M4A, OGG, or another common audio file. Set exact start and end times, preview the highlighted clip, then download a WAV. The source and result stay in your browser, so recordings are not uploaded to a server.
Drop an MP3, WAV, M4A, FLAC, OGG, AAC, or another common audio file into the trimmer.
Drag the IN and OUT controls, enter exact timestamps, or set either boundary from the audio playhead.
Play only the highlighted interval and adjust the boundaries until the clip starts and ends cleanly.
Create the clip locally, listen to the result, then download the trimmed WAV.
The waveform gives you a visual map of quiet gaps, speech, and musical peaks. Drag the IN and OUT points for a quick cut, type timestamps to the nearest millisecond for precision, or move the player and use its playhead as either boundary.
The first export loads a WebAssembly audio engine, trims only the selected interval, and writes a 44.1 kHz stereo WAV. WAV avoids another lossy compression pass and works well in editors, but it is usually larger than the original MP3 or M4A.
No. File reading, waveform decoding, trimming, preview, and the result all happen inside your browser tab. The first trim downloads the audio engine code, but your recording is not sent with that request. Refreshing or closing the tab releases the temporary local file URLs.
Yes. You can trim and download audio without an account, subscription, credit limit, or watermark. There is no server queue because processing happens on your device. Your practical limits are the memory and processing speed available to the browser.
The conservative cap adapts to the device: 100 MB on mobile or lower-memory hardware, 250 MB on a typical desktop, and 500 MB on a high-memory desktop. Large compressed files expand during decoding, and the WAV result can use much more memory than the source.
The picker accepts common audio formats including MP3, WAV, M4A, AAC, FLAC, OGG, Opus, AIFF, MP4 audio, and WebM audio. Preview support depends on the browser and codec. If the duration cannot be read, convert the source to MP3, WAV, M4A, or OGG first.
You can enter start and end times to the nearest millisecond. The tool decodes the selected interval and exports it as WAV instead of copying whole MP3 frames, which avoids the larger timing jumps common with lossless stream-copy cuts. Encoders can still add a tiny amount of padding.
WAV stores uncompressed PCM audio, so the trimmed file is broadly playable and suitable for further editing without another lossy compression pass. It is usually larger than MP3, M4A, or OGG. You can convert the WAV later when a smaller delivery file matters more.
