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Fade-In, Fade-Out, Crossfade Effects

Online Audio Cutter

Drop an audio file anywhere on the page to start editing, or import a saved project to pick up where you left off. Want to explore first? Try our editor with a demo project.

We are trying to create the most convenient audio cutting tool

Cut, trim & split audio

Edit MP3, WAV and other audio files with sample-level accuracy. Remove unwanted parts, extract segments, or split long recordings into multiple files.

Merge audio files

Combine multiple audio files into one track. Seamlessly join music, voice recordings, or sound clips with optional fade transitions.

Extract audio from video

Extract audio tracks from video files. Convert MP4, WebM and other video formats to MP3, WAV, or FLAC.

Audio converter

Convert between MP3, WAV, OGG, FLAC, AAC, MP4, AIFF and other formats. Control quality, bitrate, and sample rate.

Fade-in / fade-out

Apply smooth fade-in and fade-out effects to avoid abrupt starts and endings.

Volume adjustment

Increase or decrease audio volume without distortion. Fine-tune loudness for music, speech, and recordings.

Audio normalization

Normalize audio to a target volume level (e.g. -1 dB, -16 LUFS). Fix recordings that are too quiet.

Audio compression

Apply dynamic range compression to balance loud and quiet parts for a clear, professional sound.

Frequency filter

Apply high-pass, low-pass, band-pass, or notch filters. Remove rumble, hum, hiss, or isolate specific frequency ranges.

Remove silence from audio

Automatically detect and highlight silent parts. Clean up podcasts, interviews, voice recordings.

Save & restore projects

Export your editing session as a project file and reopen it later. All cuts, fades, volume, and effects are preserved.

Integration API

Integrate audio editing into your website. Open audiocutter.online as a popup and send audio files via postMessage.

Frequently Asked Questions

Integrate with your website

Let your users edit audio files. Open audiocutter.online as a popup and send audio file via postMessage.

// 1. Open the import page as a popup
const popup = window.open('https://audiocutter.online/import/')

// 2. Listen for the ready signal
window.addEventListener('message', (event) => {
  if (event.data?.source === 'audiocutter' && event.data.type === 'ready') {
    // 3. Send the audio file
    popup.postMessage({
      type: 'audio',
      file: file // File object
    }, 'https://audiocutter.online')
  }
})

Have questions or need help integrating?

Use cases

Podcast editing

Trim episodes, remove silence, normalize loudness, and convert to broadcast-ready formats before publishing.

E-learning and LMS

Let students trim audio assignments or edit voice submissions before uploading to your platform.

Language learning

Record pronunciation, trim mistakes, and submit clean audio samples for review.

Music platforms

Create preview clips, trim user uploads, or let artists edit tracks before distribution.

Ringtone and alert makers

Cut a section from a song, apply fade effects, and export as MP3 or other mobile formats.

Audiobook production

Split long recordings into chapters, trim silence between sections, and normalize volume.

CMS and blog platforms

Edit audio clips before attaching them to articles, posts, or pages.

Social media tools

Trim and convert audio for stories, reels, or short-form content creation.

Digital asset management

Let teams crop and convert audio files in the browser without installing desktop software.

Video platforms

Extract and edit audio tracks from video files. Convert between formats for post-production.

Customer support

Trim call recordings to isolate relevant parts for training, review, or compliance.

File upload flows

Add an "edit before upload" step so users can trim and clean up audio files before submitting.

Radio and broadcasting

Cut audio clips, adjust levels, and export in broadcast-ready formats for on-air use.

SaaS platforms

Add audio trimming, format conversion, and volume adjustment as a built-in feature for your users.

Let's cut some audio
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