Audio Trimmer
Trim audio to a specific time range.
Drop your audio file here
or click to browse · max 500 MB
Trim Settings
128k for speech · 192k for general · 320k for music
FFmpeg WASM (~25MB) will be downloaded on first use and cached by your browser.
Free Online Audio Trimmer
Trim and cut audio files to a specific time range directly in your browser. Set precise start and end times using the HH:MM:SS format, preview your audio, and export the trimmed clip as MP3. No software installation required - everything runs locally using FFmpeg WebAssembly.
What is it used for?
- Creating custom ringtones and notification sounds from songs
- Extracting specific segments from podcast episodes
- Creating audio clips and samples for music production
- Trimming voice memos and recordings to the relevant portion
- Cutting interview audio to specific quotes or answers
- Preparing audio snippets for presentations
Step-by-Step Guide
- Click the upload area or drag and drop your audio file
- Use the built-in audio player to find your desired start and end points
- Enter the start time in HH:MM:SS format (e.g., 00:01:30 for 1 minute 30 seconds)
- Enter the end time in HH:MM:SS format
- Select the output audio bitrate
- Click 'Trim Audio' to process
- Preview the trimmed result and download the MP3 file
How it works
Upload an audio file and set start/end times in HH:MM:SS format. The built-in audio preview helps you identify the exact timestamps. When you click Trim, FFmpeg WASM processes the file using the -ss and -to parameters. The audio is re-encoded with LAME MP3 encoder, producing a high-quality MP3 file. No data is uploaded to any server.
Tips & Best Practices
- For ringtones, most phones accept clips of 20-40 seconds
- Use the audio player to find the exact start and end points
- Select higher bitrate (256-320k) for music, lower (128k) for speech
- You can trim any audio format - MP3, WAV, FLAC, OGG, AAC, M4A
- Shorter clips process almost instantly in the browser
Frequently Asked Questions
What audio formats can I trim?
You can trim MP3, WAV, FLAC, OGG, AAC, M4A, and virtually any audio format. FFmpeg WASM supports all major audio codecs. The output is always MP3 for universal compatibility.
Can I use this to make ringtones?
Yes! Upload your song, find the section you want (typically 20-40 seconds), set start and end times, and trim. The resulting MP3 can be used as a ringtone on most smartphones.
What audio quality is the output?
The output quality depends on the bitrate you select. 192kbps is high quality for general use, 320kbps for music.
Is there a maximum file length?
Files up to 500MB are supported. For audio files, this typically allows several hours of content. Processing time depends on file size and your device's capabilities.
Privacy & Security
This tool uses FFmpeg compiled to WebAssembly (WASM). The WASM binary (~25MB) is downloaded from a CDN on first use and cached by your browser. All processing happens locally on your device - your audio files are never uploaded to any server. This makes it safe for personal, private, or confidential recordings.