Why this is lossless for MP3
Most online cutters decode your file, chop it, and re-encode the result — which throws away a little quality every time. This tool uses a stream copy (FFmpeg's -c copy) instead, so the bytes between your start and end are lifted out untouched. For an MP3 source that means the clip is bit-for-bit identical to the original in that range. The trade-off is that cuts land on the nearest frame boundary (a few tens of milliseconds), which is imperceptible for ringtones, podcast clips, and music snippets.
Three things people cut audio for
Ringtones are the classic case: grab the 20-second hook from a track and load it onto your phone. Podcast and interview editing is the second — pull a quotable 30 seconds out of an hour-long episode to post on social without exporting the whole thing. The third is trimming dead air: every recording has an awkward count-in at the front and a fumble for the stop button at the end, and lopping those off makes the file tighter to share.
How to enter the times
The start and end boxes accept mm:ss or hh:mm:ss — so 1:30 means a minute and a half, and 1:05:00 means an hour and five minutes in. Play the file in any audio app to find the exact seconds you want, then type them in. The end must come after the start, or the cut button stays disabled.
Recording the audio in the first place
If you are cutting a clip from a voice memo or a screen-recording's audio track, you can skip a step by capturing it cleanly to begin with. Clipy is a free screen and voice recorder — record the take, grab the audio, then trim it here. No watermark, no signup wall, and the recording stays yours.