Trim, cut, and fade audio on a sample-accurate waveform — right in your browser. Nothing is uploaded, no account, no watermark. Your file never touches a server.
mp3cut (part of the 123apps suite) is free and handles files up to 4 GB, but it uploads your audio to its servers to do the work. Webhackz cuts audio entirely inside your browser tab — nothing is uploaded — with a sample-accurate waveform, fades, and MP3 or lossless WAV export. Because it runs on your own device, the practical ceiling is your available memory rather than a 4 GB server limit, and it reads the common formats your browser can decode.
| Feature | Webhackz | mp3cut (123apps) |
|---|---|---|
| Where your audio goes | Your browser — never uploaded | Uploaded to 123apps' servers |
| Cost | Free | Free (123apps Pro subscription optional) |
| Account | None | Not needed for basic use |
| Max file size | Bounded by your device's memory | Up to 4 GB (processed server-side) |
| Input formats | MP3, WAV, M4A, OGG, FLAC + a video's audio track | 300+ formats |
| Editing | Trim, cut, fade; export MP3 or WAV | Trim, fade, plus a wider audio-tool suite |
| Works offline | Yes, once the page loads | No — needs a server round-trip |
Yes. Webhackz trims, cuts, and fades audio entirely in your browser, so the file is never uploaded. It's free, needs no account, and adds no watermark — the practical limit is your device's memory rather than a server cap.
Yes. mp3cut (123apps) uploads your audio to its servers for processing, accepting files up to 4 GB. Webhackz does the editing locally in your browser instead, so nothing leaves your computer.
You can trim to length and add an equal-power fade in or out, then export MP3 or lossless WAV. iPhone .m4r ringtones aren't supported yet, but a trimmed MP3 works directly as an Android ringtone.
Comparison last verified July 2026. Figures for other products can change — check their sites for the latest.