Cut Audio Files Online for Free

Cut modes:

• ·Keep selection — The default. Keeps the audio between your start and end handles; discards everything outside.
• ·Remove selection — Removes the audio between your handles; keeps everything outside. Useful for cutting out a section from the middle of a recording without having to make two separate trims.

Waveform navigation tips:

• ·Zoom into the waveform to find the exact sample where a word, note, or beat begins. At full zoom, you can distinguish individual syllables.
• ·Click anywhere on the waveform to move the playhead to that position and listen from there — useful for confirming a cut point.

Precise entry:

Enter start and end times as MM:SS.mmm (e.g., 01:23.456) for millisecond-accurate cuts. More reliable than dragging handles for very short or very precise selections.

For podcasts and voice recordings:

Cut at the end of an exhale, not mid-breath. Cutting at a natural breath boundary sounds cleaner than cutting through speech. Zoom in and look for the flat (silent) region between breaths — that is where to place the cut.

Cutting vs Splitting: Cutting (trimming) creates one output file containing a selected portion of the original. Splitting creates multiple files from one source — for example, dividing a 1-hour recording into 10-minute segments. Use cutting to extract a clip; use splitting when you need to divide a file into parts.

Lossless cutting (WAV/FLAC) vs lossy cutting (MP3/AAC): When cutting WAV or FLAC, every sample in the output is bit-identical to the original — zero quality change. When cutting MP3 or AAC, a small re-encode at the cut boundary is unavoidable. If this matters for your use case, record and work in WAV, then cut and export.

Online cutter vs DAW: A Digital Audio Workstation like GarageBand, Audacity, or Logic Pro provides non-destructive editing, allowing you to undo cuts, make multiple edits, and hear changes in real time before committing. This online tool provides one fast, destructive cut with a preview step. Use the online tool for quick extraction; use a DAW for complex editing work.

Cutting audio means removing the parts you don't need — keeping only the section that matters. The specific format of your audio file determines how the operation works underneath and whether any quality is affected.

For lossless formats (WAV, FLAC, AIFF), cutting is a purely structural operation: the editor locates the sample positions at your specified start and end points and writes only those samples to the output file. No re-encoding occurs. The cut section is identical, sample-for-sample, to the same section in the original file.

For lossy formats (MP3, AAC, OGG), a small amount of re-encoding occurs at the cut boundaries because these formats are frame-based — the encoder must close one frame and open another at the cut point. The audible impact is negligible for most purposes.

This cutter accepts any major audio format and delivers the same simple workflow: upload, set your start and end, preview, download. Format-specific quality considerations are handled automatically — WAV and FLAC output is lossless; MP3 and AAC output is encoded at the source file's original bitrate.