Trim Audio Online Free — Cut MP3, WAV, FLAC Files

Cut Audio Files to the Exact Section You Need

Need a specific section from a song, podcast, or recording? MyPDF's Audio Trimmer lets you cut any audio file to precise timestamps — free, fast, and right in your browser.

How to Trim Audio

Step 1: Upload Your Audio File

Open the Audio Trim tool and upload your audio (MP3, WAV, FLAC, AAC, OGG, M4A, AIFF).

Step 2: Set Start and End Points

Use the waveform display to visually select your clip, or enter exact timestamps manually.

Step 3: Trim and Download

Click "Trim" and download the cut audio file in its original format.

Common Uses

• Create ringtones — Cut a song to your favorite 30-second section
• Podcast editing — Extract specific segments from long episodes
• Music samples — Isolate a loop, riff, or vocal section
• Voiceover cleanup — Remove silence or mistakes from recordings
• Sound effects — Extract specific sounds from longer recordings
• Lecture clips — Pull key moments from recorded lectures

Audio Ringtone Length by Device

Device	Ringtone Length
iPhone	30 seconds max (M4R format)
Android	No hard limit (MP3/OGG)
Alarm tone	15-60 seconds typical
Notification sound	3-10 seconds

Tips

1. Use the waveform — Visual peaks show where the audio is loudest, making it easy to find the right section
2. Add fade in/out — After trimming, use Audio Fade to smooth the transitions
3. Merge trimmed clips — Use Audio Merge to combine multiple trimmed sections
4. Convert format — Need a different format? Use MP3 to WAV or WAV to MP3 after trimming
5. Normalize volume — Use Audio Normalize if the trimmed clip is too quiet or loud

Frequently Asked Questions

Does trimming reduce audio quality?

No. The audio is cut without re-encoding where possible, preserving the original quality.

What formats are supported?

MP3, WAV, FLAC, AAC, OGG, Opus, M4A, AIFF, and WMA.

Can I trim multiple sections from one file?

Trim once, download, then trim again for another section. Or use Audio Split to divide into multiple segments.

Is it free?

100% free — no sign-up, no watermarks.

Related Tools

• Audio Merge — Combine multiple audio clips
• Audio Normalize — Fix volume levels
• MP3 to WAV — Convert audio format
• MP4 to MP3 — Extract audio from video
• Audio Speed — Change playback speed