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Audio Trimmer

Trim audio files online for free. Cut MP3, WAV, and other audio formats. Easy audio cutter and editor.

Use Audio Trimmer to get instant results without uploads or sign-ups. Everything runs securely in your browser for fast, reliable output.

Your results will appear here.

Ready to run.

About this tool

Our Audio Trimmer Calculator helps you trim audio files by calculating the new file size and duration after cutting.

Audio trimming is perfect for creating ringtones, removing unwanted sections, extracting clips, or shortening audio for specific uses.

This tool helps you estimate the trimmed audio specifications including file size, bitrate, and format compatibility.

Usage examples

Create Ringtone

Trim 30-second section from song

Input: 4-minute MP3 → Trim to 30 seconds → Output: 720 KB ringtone

Remove Intro/Outro

Cut unwanted parts from podcast

Input: 60-minute podcast → Trim 5 minutes → Output: 55-minute episode

How to use

  1. Upload your audio file or enter specifications
  2. Set start and end points for trimming
  3. Preview the trimmed section
  4. Download the cut audio file

Benefits

  • Trim audio precisely
  • Cut MP3, WAV, and more
  • Remove unwanted sections
  • Create ringtones and clips
  • Maintain audio quality
  • Fast processing
  • No quality loss

FAQs

Will trimming reduce audio quality?

No, trimming doesn't re-encode audio if using the same format. It simply removes parts of the file without quality loss.

What audio formats can I trim?

Most formats including MP3, WAV, AAC, M4A, OGG, FLAC, and WMA. MP3 and WAV are most common.

How accurate is audio trimming?

Modern trimmers can be accurate to milliseconds. MP3 trimming may have slight frame boundaries (26ms) due to format structure.

What audio format has the best quality?

Lossless: FLAC, WAV, ALAC (Apple) - identical to original, large files. Lossy: MP3 (universal), AAC/M4A (better than MP3), OGG (open source). 320kbps MP3 sufficient for most. Use lossless for editing, lossy for sharing/storage.

Does trimming audio reduce quality?

No quality loss if no re-encoding. Trimming MP3 to MP3 may introduce slight quality loss due to frame boundaries. Use lossless format (WAV) for editing, then export to desired format. Avoid multiple saves of lossy formats.

How do I remove silence from audio?

Use audio editors with silence detection (Audacity: Effect > Truncate Silence). Set threshold (-40dB typical). Preserve small gaps (0.5s) for natural speech. Batch process with tools like FFmpeg. Be careful not to cut breathing or natural pauses.

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