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
Anything specific to Audio when trimming?
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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.
Is the part I keep re-encoded?
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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.
How does Audio Cutter cut the file?
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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?
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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 Audio Cutter cost anything?
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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.
Which audio formats does Audio Cutter accept?
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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?
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Yes: free accounts process audio up to 15 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.
Do tags and cover art survive?
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Yes — ID3, Vorbis comments and MP4 atoms are carried across along with embedded artwork, so processed files still sort correctly in a music library.
Why does a MP3 site host Audio Cutter?
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MP3.to is built around the format that made portable audio ordinary: universally playable, small enough to ignore, and lossy in a way that only matters if you keep re-encoding it. Audio jobs cluster: the same person who needs a format changed usually needs the file cut, levelled or made smaller in the same sitting. Putting Audio Cutter behind the same upload, the same caps and the same account is what turns three tabs into one.
What should I do with the result once Audio Cutter is finished?
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The converter on this site moves audio between MP3, WAV, FLAC, M4A, OGG and Opus, so the output format is a decision you can leave until the end rather than commit to at the start. Doing that after Audio Cutter rather than before means the encode happens once, on the file you actually settled on, instead of twice.
Is Audio Cutter here the same tool the sibling sites run?
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The engines are shared — the same ffmpeg build, the same workers, the same limits. What a MP3 site adds is a point of view about bitrates, about what survives an encode and about when a lossless intermediate is worth the upload time. It also starts from one fact about the format this site is named after: MP3 frames are fixed-size blocks, so a cut lands on a frame boundary and gapless playback markers do not survive a re-encode.
Do I need an account, and does anything get kept?
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No account, and nothing is kept: uploads are deleted from the workers shortly after the job finishes, nothing is listened to and nothing is indexed. Free accounts exist for history and batch size, not for access.
