TubeMixLab
Cut a section of a YouTube video's audio by exact timestamps.
YouTube Audio Cutter
Cut a specific part of YouTube audio by choosing exact start and end times, then export the selected section as MP3 — free, no account needed.
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How Segment Selection Works
Paste a YouTube link and TubeMixLab loads the video's waveform. Drag the In and Out handles — or type exact timestamps — to select precisely the section you want. Only that section is included in the exported MP3; everything outside it is discarded.
Timestamps, Fades and Volume
Enter start and end times directly if you already know them, or scrub the waveform to find the right spot by ear. You can also add a short fade-in or fade-out and adjust the volume of the exported section before downloading.
Preview Before You Export
Click "Watch video" on a clip to load the embedded player and check your selection against the original video, or use the waveform's playhead to scrub through the current In/Out range. The export preview below also shows the selected length before you render anything.
Common Uses
People use the cutter to pull a quote or sound bite from an interview, isolate a specific verse or chorus from a song, save a highlight from a longer video, or trim off an intro and outro before listening offline.
Need More Than One Clip?
This page is built around cutting a single segment from one video. To combine trimmed sections from multiple videos into one MP3, use the YouTube MP3 Mixer instead — the same trimming tools, with support for adding, reordering and exporting several clips together.
Frequently Asked Questions
Can I convert part of a YouTube video to MP3?
Yes — paste the link, drag the In and Out handles to the section you want, and export. Only the selected section is included in the MP3.
Can I set an exact start and end time?
Yes. Type timestamps directly into the In and Out fields, or drag the waveform handles for finer control.
What audio quality does the exported MP3 use?
You choose — 320kbps for the best quality, or 128kbps for a smaller file, using the toggle above the Export Clip button. It defaults to 320kbps. The bitrate only applies to MP3 — the format toggle beside it also offers lossless FLAC and WAV, which skip MP3 compression entirely and keep exactly what came out of the source audio (capped at 40 minutes, since the files are several times larger).
What's the difference between this and the mixer?
This page cuts one segment from one video. The YouTube MP3 Mixer combines trimmed segments from multiple videos into a single MP3.
Do I need an account?
No. There's no signup and nothing to install — paste a link and start cutting.