MP3 Cortador

Mp3 Cutter — Mp3 Cutter Ferramenta online gratuita. Processe seus arquivos com privacidade no navegador. Sem cadastro e sem marca d’água.

What is the MP3 Cutter? Cut any audio clip to exact start/end seconds and export as MP3 or WAV — ringtone maker, no upload, no signup. It runs entirely inside your browser — sem uploads, sem cadastro, sem marcas d’água, grátis para sempre.

Trim songs to the perfect 30-second ringtone, podcast intro or notification sound. Upload audio, set start and end times, preview, and export as MP3 (via in-browser LAME encoder) or lossless WAV. The entire pipeline — decode, slice, encode — runs locally in the Web Audio API.

Audio file

Start (sec)

End (sec)

Status appears here...

🔒 100% Private — runs in your browser, nothing is uploaded

Como usar This MP3 Cutter & Ringtone Maker (Step-by-Step)

Choose an audio file — MP3, WAV, M4A or OGG — anything your browser can decode.
Set start and end — Type seconds like 12.5 to 42.0.
Preview & cut — Listen, then download MP3 or WAV.

Web Audio + LAME in One Tab — Under the Hood

decodeAudioData turns any compressed file into raw PCM samples. The cutter slices the Float32 buffer between your timestamps, then either writes a WAV container (trivial) or pipes samples through LAME — a pure-JavaScript MP3 encoder — to produce a real MP3. No server ever sees your audio.

Frequently Asked Questions

Is the quality preserved?

MP3 re-encodes at 192kbps by default; WAV is lossless from the decoded source.

Does it upload my song?

No — decoding and encoding happen entirely in your browser.

Why is my M4A not loading?

Some browsers cannot decode AAC; convert to MP3/WAV first.

Related Free Tools

Resumo rápido

MP3 Cutter — 100% Free, No Signup is a practical NexVaani tool for completing this task quickly in your browser. Cut any audio clip to exact start/end seconds and export as MP3 or WAV — ringtone maker, no upload, no signup. Use the tool, review the result, and continue with a related NexVaani tool when your workflow needs another step.