Audio Cutter
Open an audio file, drag the handles on the waveform to pick a region, preview it, and download the cut as a WAV file.
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Selection length — open an audio file to begin
Output is uncompressed 16-bit WAV. Everything runs in your browser — long files use more memory.
How it works
- Choose an audio file (MP3, WAV, M4A, or OGG) — it is decoded on your device and the waveform appears below.
- Drag the two blue handles on the waveform, or type exact start and end times in seconds, then press Play selection to check the cut.
- Click Download WAV to save the selected region as a standard 16-bit WAV file.
Frequently asked questions
- Is my audio file uploaded to a server?
- No. The file is decoded with your browser’s built-in Web Audio engine and never leaves your device. You can load the page, go offline, and still cut and export audio.
- Which input formats does the audio cutter support?
- Anything your browser can decode: MP3, WAV, M4A/AAC, and OGG work in all modern browsers, and FLAC works in most. If a file fails to open, the codec is not supported by your browser rather than by this tool.
- Why is the output WAV instead of MP3?
- Browsers can decode MP3 but have no built-in MP3 encoder, so the trimmed region is written as uncompressed 16-bit PCM WAV. WAV is lossless and opens everywhere, and you can re-encode it to MP3 later if you need a smaller file.
- How precise is the cut?
- The start and end fields accept fractions of a second, and the cut is made on exact audio samples, so precision is far finer than one hundredth of a second. For clean edits, place cuts in silent gaps or drag the handles while previewing to avoid clicks at the boundaries.
- Is there a file size or length limit?
- There is no hard limit, but the whole file is decoded into memory as raw PCM, which takes roughly 10 MB per minute of stereo audio. Files up to about an hour work fine on a typical laptop or phone; very long recordings may fail to decode on low-memory devices.
About this tool
This audio cutter trims a section out of an MP3, WAV, M4A, or OGG file directly in your browser. Open a file, and the tool draws its waveform so you can see exactly where speech, music, or silence sits. Drag the two handles to mark the region you want to keep, fine-tune the boundaries with the second-precise number fields, listen to the selection with the built-in preview, and download the result as a WAV file — no account, no watermark, and no upload wait.
Technically, the file is decoded with the Web Audio API that ships in every modern browser. Decoding turns the compressed audio into raw PCM samples in memory, which is what makes sample-accurate cutting possible: the exported clip starts and ends on the exact samples you chose, not on a compressed frame boundary. The tool then writes a standard 44-byte WAV header followed by 16-bit PCM data and hands the file to your browser’s download manager. Because everything happens locally, private recordings — voice memos, interviews, meeting audio — never touch a server.
Typical uses include cutting a ringtone or notification sound from a song, trimming silence and false starts from a voice recording, extracting a quote from a podcast or lecture, isolating a sound effect, or shortening a track for a slideshow. Since the output is lossless WAV, you can cut a clip here and then feed it into any converter or editor without stacking a second generation of MP3 compression on top.
A few practical tips: cut in quiet gaps where possible so the edit is inaudible, and use Play selection after every adjustment — it always plays the current region, so you hear exactly what will be exported. Keep in mind that WAV is uncompressed, so a one-minute stereo clip is around 10 MB; if you need a small file, run the exported WAV through an MP3 or AAC encoder afterwards.