To trim audio online for free, you don't need to open a full editing app -- a simple start/end-time cutter does the job in a few seconds. ClearVoice’s audio trimmer lets you type a start and end time, in seconds, and gives you back just that slice as an MP3, with no account needed.
When you'd want to trim audio
- Cutting the dead air or small talk off the start or end of a recording.
- Pulling out a short sound bite or quote from a longer interview or podcast episode.
- Shortening a voice memo before sending it.
- Removing a section where something went wrong (background noise, a dropped call, a mistake) without re-recording the whole thing.
How to trim audio, step by step
- Open the audio trimmer.
- Upload your audio or video file.
- Enter the start time in seconds (how many seconds into the file your clip should begin).
- Enter the end time in seconds (leave it blank to keep everything after the start point).
- Click "Process file" and your trimmed MP3 downloads automatically.
How do I find the right timestamps?
Play the file in any media player (your phone's default player, VLC, or even the browser) and watch the seek bar -- most players show the current position in minutes:seconds. Convert that to total seconds (for example, 1:30 is 90 seconds) and use that number as your start or end value.
Frequently asked questions
Can I make more than one cut at a time?
Each run produces one continuous clip from one start point to one end point. To pull out two separate sections from the same file, run the tool twice on the original and download both clips.
Is there a length or size limit?
Yes -- 300MB and 30 minutes per upload, which is generous enough for a full podcast episode or lecture recording.
Does this work on video files too?
Yes -- upload a video and it trims and extracts the audio in the same step, giving you back the trimmed clip as an MP3.
One more thing worth knowing: none of these tools remove background noise -- they just cut, convert, join or measure audio as-is. If your recording still has fan hum, room echo, traffic or a noisy AC unit under the voice, run it through ClearVoice’s AI noise removal afterward -- upload the file, and it comes back clean.
This is part of our free audio tools suite -- all free, no signup. You might also want Extract Audio and Audio Joiner.