2Drag the start and end handles on the waveform or the timeline, or type exact timecodes if you already know them.
3Preview the selection and run the cut — the part you keep is copied through untouched wherever the format allows it.
4Download the trimmed Audio file.
Audio Cutter FAQ
How does Audio Cutter cut the file?
+
Concretely, the cut is stream-copied where the codec allows it and sample-exact where the source is lossless, so you get the cheapest correct path for the file you actually uploaded. You set the start and end points on the waveform or the timeline and keep what is between them.
How precisely can I place the start and end points?
+
You can type exact timecodes rather than only dragging, and the preview scrubs to the position as you move it. How exact the result can be depends on the format: some allow a cut anywhere, others snap to the nearest frame or keyframe.
Does the format limit where I can cut?
+
It does. this format is read and written by the same streaming pipeline as everything else we support. That is precisely what decides whether a cut can be placed arbitrarily or has to land on a structural boundary.
Anything specific to Audio when trimming?
+
Yes — the codec is detected from the stream, so a mislabelled extension does not derail the job. It explains most of the "the cut is a fraction of a second off" surprises.
Can I remove a section from the middle instead of keeping one?
+
Yes — cut the piece before it and the piece after it, then merge the two results. That is deliberately two steps because it keeps both halves on the fast, lossless path instead of forcing a full re-encode.
Is the part I keep re-encoded?
+
Not if the format allows a stream copy — the data you keep is bit-identical to the source and the job finishes in about the time the upload took. Only a frame-exact cut on a format that cannot do it cheaply needs a re-encode.
Which audio formats does Audio Cutter accept?
+
MP3, WAV, AAC, M4A, FLAC, OGG, Opus, WMA and AIFF. Codecs are detected from the stream rather than the extension, so a mislabelled file still works and a mixed batch is handled per file.
Is there a file size limit on Audio Cutter?
+
Yes: free accounts process audio up to 200 MB per file whichever codec you brought; ffmpeg handles the decode and encode. In practice that limit only bites on uncompressed WAV; a compressed file of the same length is nowhere near it.
Will Audio Cutter lower the quality of my audio files?
+
It depends on the source. Lossless input (WAV, FLAC, AIFF) is edited sample-exactly and loses nothing. Lossy input has already discarded detail once, so where the job can be done by copying the encoded stream rather than re-encoding it, that is the path taken.
Can I run Audio Cutter on several audio files at once?
+
Yes. The set queues in parallel with identical settings, which is how you process an album or a podcast back catalogue without repeating yourself.
Do tags and cover art survive?
+
Yes — ID3, Vorbis comments and MP4 atoms are carried across along with embedded artwork, so processed files still sort correctly in a music library.
Does Audio Cutter cost anything?
+
No. Audio Cutter is free with no account, and nothing is added to the audio. Uploads are deleted from the workers shortly after the job completes.
