Audio cutter
Waveform preview with a two-slider selection; preview it, then export MP3 or lossless WAV — sample-accurate, local.
Cutting the first three minutes off a podcast for a teaser, pulling the audio out of a recording for a ringtone, trimming filler from an interview — "just cut a segment" covers most audio editing, yet it always lands on services that want accounts, caps or watermarks. The browser can do the whole pipeline itself: decode, cut, encode.
Drop an audio file and the waveform appears: drag the two sliders or type exact seconds, watch the red markers move, preview the selection, then export. Two formats: MP3 (128/192/320 kbps, encoded by the local lame engine) or lossless WAV (16-bit PCM). The selection is sample-accurate and the export is exactly the selection — no fades, no resampling you did not ask for.
WAV or MP3?
WAV is uncompressed PCM — what you select is what you get, ideal for further editing and archiving, at the cost of size (about 10 MB per stereo minute at 44.1 kHz). MP3 is lossy but small and universally compatible — the choice for sharing, ringtones and chat apps. Re-encoding an MP3 source to MP3 adds generational loss; go 320 kbps or straight to WAV when quality matters.
Which formats can be cut
Decoding goes through the browser AudioContext, so capability equals your browser: WAV, MP3, M4A/AAC, OGG and FLAC are broadly supported. Export is always WAV or MP3 — cutting an M4A or FLAC file into MP3/WAV doubles as format conversion. Very long recordings (hours) are memory-bound; process them in segments.
Frequently asked questions
- Does cutting re-encode? Is there quality loss?
- Exporting MP3 re-encodes (lossy — 320 kbps keeps the loss negligible); exporting WAV writes the selected samples as-is with no loss at all. Be skeptical of any "lossless MP3 cutting" claim — when selection boundaries miss frame edges, re-encoding or glitches are unavoidable.
- Are files uploaded?
- No. Decoding, waveform analysis and MP3/WAV encoding all run in the browser; the page has no upload logic, so interview recordings and private audio are safe here.
- Can it do fades or multi-clip stitching?
- This tool does one thing — precise cutting — and skips the effects rack. For fades, export WAV and process further; for multi-segment assembly use a dedicated editor.