Are my audio files uploaded to a server?

No. Everything runs instantly. Your audio is decoded in memory, trimmed in memory, and encoded in memory — nothing leaves your device.

What's the difference between MP3 and WAV export?

MP3 is compressed (192 kbps default) — small files, universally compatible, perfect for ringtones and sharing. WAV is uncompressed 16-bit PCM — larger files (about 10MB per minute) but lossless, ideal for further editing or archiving.

How precise is the trim?

Millisecond precision. The handles map to the exact sample position based on the file's sample rate — 44.1kHz audio has ~0.02ms resolution, well below human perception.

What do fade in and fade out do?

They apply a linear volume envelope to the start and end of your selection. A 0.5s fade in means the first half second ramps up from silence to full volume. This prevents clicks and pops when cutting mid-note, and makes ringtones sound polished.

Can I use this to make iPhone ringtones?

Yes. Cut your audio to under 30 seconds, export as MP3 or M4A, then transfer to your iPhone via iTunes/Finder or a ringtone app. iPhone ringtones must be under 30 seconds — the audio cutter's time display helps you hit that limit exactly.

What's the maximum file size?

There's no hard limit — browser memory is the constraint. A 100MB MP3 decodes fine on a modern laptop. Very long files (2+ hours) may hit memory limits on mobile devices.

Does trimming reduce audio quality?

No, but the export format matters. WAV export preserves the decoded audio bit-for-bit. MP3 export re-encodes at 192 kbps — visually transparent for most content, slightly lossy for critical listening. Since we decode to 32-bit float internally, there's no additional quality loss beyond the encoder's compression.

Can I cut multiple regions from one file?

Not in a single pass — but you can export one region, then adjust the handles and export another. Each export produces a fresh download.

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Waveform Editor · 100% Private

Audio Cutter & Ringtone Maker

Trim any audio file with millisecond precision using an interactive waveform. Add fade in/out, preview the selection in real time, and download as MP3 or WAV. Everything runs instantly — no uploads, no signup.

#MP3#WAV#M4A#AAC#OGG#Ringtone

Drop an audio file or click to browse

MP3, WAV, M4A, AAC, OGG, FLAC · Single file · Trimmed instantly

Drop an audio file to get started

Supported: MP3, WAV, M4A, AAC, OGG, FLAC. Drag the green handles to select the region you want to keep.

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How to cut audio in 3 steps

Waveform editor — no software, no upload.

Upload your audio

Drop any MP3, WAV, M4A, AAC, OGG, or FLAC file. We decode it instantly and render the waveform in real time.

Drag the green handles

Drag the left and right handles to trim the selection. Click anywhere in the middle to jump the nearest handle. Time displays update to millisecond precision.

Preview, fade, and download

Click Preview to hear the selection with fades applied. Set fade in/out durations. Then export as MP3 for universal compatibility or WAV for lossless output.

Frequently Asked Questions

MP3, WAV, M4A, AAC, OGG/OGG-Vorbis, WebM audio, and FLAC. Support depends on the browser's native decoder — modern Chrome, Firefox, Edge, and Safari handle all of these. Old browsers may reject FLAC or M4A.

About the Audio Cutter & Ringtone Maker

Everything you need to know

Why cut audio?

Traditional audio editors require downloads, installs, or uploads. Server-based trimmers expose your files to third-party infrastructure and impose file-size limits. This tool loads, visualizes, trims, and exports audio instantly on your device. Zero uploads, zero installs, works offline after first visit.

Perfect for ringtones and notification sounds

iPhone ringtones must be under 30 seconds. Android ringtones and notification sounds are typically 3–10 seconds. WhatsApp and Telegram notification sounds work best under 5 seconds. The interactive waveform lets you find the perfect chorus, hook, or riff and trim it to exactly the length you need. Fade in/out adds polish that makes a raw cut sound professional.

The waveform editor explained

The waveform visualizes the audio's amplitude over time — louder sections are taller bars. The green handles mark the start and end of your selection. Everything outside is dimmed, and everything inside is highlighted in emerald. Drag either handle to adjust the cut point; the millisecond display updates live. Click anywhere in the middle to snap the nearest handle to that position. The red playhead shows where you are during preview.

MP3 vs WAV — which should you choose?

MP3 at 192 kbps is the practical choice for ringtones, podcasts, and sharing — file size is roughly 1.4MB per minute. WAV is the right choice for archiving, further editing, or any use where lossless quality matters — file size is roughly 10MB per minute at 44.1kHz stereo. Because the audio is decoded to 32-bit float internally, WAV export preserves exactly what was decoded. MP3 export applies one pass of lossy compression at the selected bitrate.