Audio Trimmer & Cutter
Cut a section out of any audio file, add fades and export a WAV.
About the Audio Trimmer & Cutter
Load an MP3, WAV, M4A, OGG, FLAC or a video file, drag the range handles to the exact start and end point, then render the cut with optional fade-in, fade-out, volume change and a mix-to-mono option. Everything is decoded and rendered offline with the Web Audio API, so the file never leaves your device.
Popular uses
- audio trimmer
- audio cutter
- cut mp3 online
- trim audio
- mp3 cutter
- ringtone maker
Examples
Make a ringtone
song.mp3 (4:12) — trim 1:02 → 1:32Output
song-trimmed.wav · 30 s · 5.2 MBClean an intro
podcast.m4a — trim 0:14 → 42:10 + 2 s fade inOutput
podcast-trimmed.wavKeyboard shortcuts
- Copy the main outputCtrl / ⌘ + Shift + C
- Download the resultCtrl / ⌘ + S
- Share this toolCtrl / ⌘ + Shift + S
- Reset the inputsAlt + R
- Open the tool search paletteCtrl / ⌘ + K
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Frequently asked questions
Read more
- How to edit videos and enhance audio completely offline in your browser
Trim on a visual timeline, reframe for Reels or YouTube, grade colour, add text and music, then clean up voice recordings with EQ, loudness normalisation and ID3 tags — without uploading a single file.
- Converting audio in the browser: bitrates, sample rates and when lossless matters
MP3, M4A, OGG, WAV and FLAC each have a job. Here is how to pick one, what bitrate to use, and how ffmpeg.wasm converts files without an upload.
- Preview before you export: why audio tools need a play button
Scrubbing, in/out handles and instant playback turn guesswork into precision when you trim or join audio in the browser.
- MP3, WAV, FLAC, M4A and OGG: which audio format to use when
A practical guide to lossy vs lossless, bit depth, sample rate and why browser tools tend to hand you a WAV at the end.
- How to trim and join audio files without installing anything
Cut a clip, fade it in, join several tracks with a crossfade and export a WAV — using nothing but the Web Audio API in your browser.
- What an audio waveform actually tells you
Peaks, RMS, clipping and silence — how to read a waveform image and use it to edit faster, plus how waveform rendering works in the browser.
Version 1.0.0 · Updated 2026-09-01 · Runs entirely in your browser