Free online tool
Trim Audio Online
Cut MP3, WAV, FLAC, AAC and more to the exact length you need - instantly, in your browser.
Drag & drop an audio file here
MP3 · WAV · FLAC · AAC · OGG · M4A · AIFF · and more
Audio sounds damaged or noisy?
Professional restoration by real engineers — noise removal, voice clarity, echo reduction.
Why use this tool?
Visual waveform
See the audio waveform and watch the selected region highlight as you adjust start and end points.
Precise controls
Slider controls let you set start and end to the nearest 0.1 second. Preview before you cut.
No quality loss
Uses stream copy mode - audio is cut without re-encoding. Zero quality loss guaranteed.
100% private
Your file never leaves your device. All processing happens locally via WebAssembly.
Works on any device
Mobile-friendly sliders work on touch screens. No app to install, no account to create.
Completely free
No account, no registration, no email. Open the page and start trimming.
How to trim audio online
- 1
Upload your audio file
Drag and drop or click to select an audio file. MP3, WAV, FLAC, AAC, OGG, M4A and more are supported. The file stays on your device.
- 2
Set start and end points
Use the Start and End sliders to define the clip. The waveform highlights the selected region. Hit Play to preview.
- 3
Click Trim
Click the Trim button. The audio is cut without re-encoding - no quality loss, very fast even for large files.
- 4
Download
Download the trimmed file instantly. Same format as the original. No registration, no email, no waiting.
Professional audio restoration
Trimmed audio sounds noisy or unclear?
Trimming removes the bad parts - but if the remaining audio has noise, hiss, hum, or muffled speech, WefixSound engineers can professionally restore it. Free sample before you pay.
Frequently asked questions
How do I trim audio online for free?
Upload your audio file, use the Start and End sliders to set the clip boundaries, preview it, then click Trim. Nothing is uploaded to any server.
What audio formats can I trim?
You can trim MP3, WAV, FLAC, AAC, OGG, M4A, AIFF, OPUS and most other common audio formats.
Will trimming reduce audio quality?
No. The tool uses stream copy mode and cuts the audio without re-encoding, so there is no quality loss.
Is my file uploaded to a server?
No. The trimmer runs entirely in your browser using WebAssembly. Your audio file never leaves your device.
Is there a file size limit?
There is no server-side limit. Practical limits depend on your device memory.