Audio Cutter — Cut MP3, Songs & Make Ringtones

What is an Audio Cutter?

An Audio Cutter (ऑडियो कटर) lets you keep just one part of an audio file and save it as a new file. It is how people make ringtones and alarm tones from their favourite songs, cut the best line from a voice recording, remove silence at the start of a podcast, prepare a short music clip for a presentation, or extract one answer from a long interview.

This cutter shows your audio as a waveform — a picture of the sound where loud parts are tall and quiet parts are flat — so you can see where songs start, where the chorus kicks in and where silence sits. Drag across the waveform to select a part, fine-tune the edges or type exact times, add a smooth fade in and fade out, and listen to the selection before saving. The result is saved as an MP3 at your chosen bitrate or as a lossless WAV.

All processing happens in your browser with the Web Audio API and the lamejs MP3 encoder. Your music and recordings are never uploaded.

Key Features

• Waveform view to see the structure of the audio.
• Drag to select and drag the edges to adjust.
• Exact times — type start and end in 0.1-second steps.
• Play selection with a moving playhead.
• Fade in and fade out, up to 5 seconds each, heard in the preview too.
• 30 s ringtone button with ready-made fades.
• MP3 output at 128, 192 or 320 kbps.
• WAV output for lossless editing.
• Many inputs: MP3, WAV, M4A, AAC, OGG, FLAC and video files.
• Private and free: no upload, no sign-up, no watermark.

How to Cut Audio — Step by Step

1. Open the cutter and choose your audio file.
2. Look at the waveform to find the section you want — choruses are usually louder.
3. Drag across the waveform to select it, or type start and end times.
4. Adjust the edges by dragging the purple lines.
5. Add fades or click 30 s ringtone.
6. Click Play selection and adjust until it sounds right.
7. Choose MP3 or WAV, click Cut Audio and download.

Making Ringtones for Android and iPhone

Menu names vary between phone brands and versions. On most Android phones you can also long-press the downloaded MP3 in the Files app and choose "Set as ringtone".

Reading the Waveform

The waveform shows loudness over time. Tall, dense areas are loud — drums, choruses, shouting. Thin areas are quiet — intros, verses, pauses. Flat lines are silence. In speech recordings, each word appears as a small burst, which makes it easy to cut between sentences. The selected region is highlighted in blue; the purple lines are its edges and the red line shows the playback position while previewing.

How to Make a Great Ringtone

A ringtone has one job: to be recognisable within a second or two. Start the clip on the most memorable moment — the hook of the chorus, a distinctive riff or the first line of the lyrics — rather than the beginning of the song. Keep it between 20 and 30 seconds so it loops naturally if the call lasts longer. A short fade in of half a second prevents a harsh click, and a fade out of one or two seconds makes the loop smooth. Avoid sections with long quiet passages; a ringtone needs consistent energy to be heard in a noisy place. Finally, check the volume: if the original song is quiet, choose a louder section, because phones play ringtones at the volume of the file.

Troubleshooting

• "This audio could not be decoded" — the format may not be supported by your browser (some WMA, AMR or protected iTunes files). Convert it to MP3 or WAV first, or try another browser.
• The waveform looks flat — the recording may be very quiet. It will still cut correctly; you can raise the phone volume when playing.
• No sound when I press Play selection — tap the page first (browsers require a click before playing audio), and check the device volume.
• The file is too long — files over 40 minutes are refused to protect memory. Cut long recordings with a desktop editor, or convert to a shorter section first.
• The MP3 will not show as a ringtone — move it to the phone's Ringtones folder, or add it from the ringtone picker's "Add" option.

Need a clip from a video? Extract the audio first with our MP4 to MP3 tool, then cut it here.

Why Choose the Prompt Minds Audio Cutter?

Many online MP3 cutters upload your files, show heavy adverts around the download button, or cap the length of the output. This tool runs entirely in your browser, keeps your files on your device, and lets you hear the fades before you save. It supports WAV for people who will edit further and MP3 for everyone else.

It is also designed for touch screens: you can select and adjust on a phone with your finger and set the result as your ringtone without moving files between devices.

Understanding Fades

A fade gradually changes the volume over time. Without a fade, a clip that starts in the middle of a sound wave begins with an audible click, and a clip that ends abruptly sounds chopped. A fade in of 0.2–1 second removes the click while keeping the start punchy; longer fade ins of 2–5 seconds create a gentle start that works well for alarms and background music. A fade out of 1–3 seconds makes endings feel natural and helps a ringtone loop smoothly. This tool applies linear fades to the exported file and also plays them in the preview, so what you hear is what you get. If your clip is very short, keep fades well below half of its length, otherwise the clip will never reach full volume.

10 Real-World Use Cases

1. Custom ringtones from your favourite songs you own.
2. Alarm tones that start gently with a fade in.
3. Notification sounds of two or three seconds.
4. Podcast clips for social media promotion.
5. Removing silence at the start or end of recordings.
6. Music for presentations and slideshows.
7. Practice loops of a difficult section of a song.
8. Voice-note highlights to share with family.
9. Interview quotes for journalism and research.
10. Sound effects extracted from longer recordings.

Common Mistakes to Avoid

• Not previewing. Always play the selection — waveforms can be misleading.
• Abrupt starts and ends. Add a short fade to avoid clicks.
• Very long fades on short clips. Keep fades much shorter than the clip.
• Exceeding iPhone's 40-second limit. Keep iPhone ringtones under 40 seconds.
• Re-encoding many times. Use WAV if you will edit the clip again.

Quick Glossary

• Waveform: a picture of the sound, showing loud parts as tall shapes.
• Fade in / fade out: a gradual rise or fall in volume at the start or end of a clip.
• Bitrate: the amount of data per second in a compressed file such as MP3.
• WAV: an uncompressed audio format that keeps the sound exactly.

Browser Support and Limits

The cutter works in current Chrome, Edge, Firefox and Safari on desktop and mobile. Files up to 100 MB and 40 minutes are supported because the whole file is decoded into memory to draw the waveform; very long files use a lot of memory on phones. Supported input formats depend on your browser — MP3, WAV, M4A/AAC and OGG work almost everywhere; FLAC and some others depend on the browser. MP3 encoding needs an internet connection once to load the encoder.

Audio Cutter — Key Facts

Frequently Asked Questions

Explore More Prompt Minds Tools

Audio Cutter works great alongside our other free tools. Every Prompt Minds tool runs entirely in your browser — no sign-up, no uploads, no watermarks. Browse all free tools.