MP3 Cutter / Audio Trimmer
Free MP3 cutter and audio trimmer that runs in your browser. Cut MP3, WAV, M4A, OGG to the exact second. No upload, no sign-up, ringtone-ready 320 kbps export.
Drag and drop your file here or click to select
About this MP3 cutter
This is a browser-based MP3 cutter and audio trimmer. Drop in an MP3, WAV, M4A, OGG, FLAC or AAC file, wait a second for the waveform to draw, then drag the start and end handles to mark the segment you want to keep. Export the trimmed clip as a clean 128–320 kbps MP3 (encoded locally with lamejs) or as lossless 16-bit WAV. Optional fade-in and fade-out smooth out any abrupt edits.
Unlike mp3cut.net, 123apps and audiotrimmer.com — which upload your audio to a server first — this cutter never sends your file anywhere. The whole pipeline (decode, trim, fade, encode) runs inside the browser tab. That matters when the source is a voice memo, a recorded WhatsApp / Telegram message, a podcast raw cut with confidential talk, a phone call recording, or anything you'd rather not hand to a third-party host. Disconnect from Wi-Fi after the page loads and trimming still works.
Typical use: making a custom phone ringtone from a 20–30s hook of a favourite song, trimming dead air and umm-uhh moments out of voice memos, cutting podcast cold opens and outros, isolating a sample for a music project, or prepping a 60s clip for TikTok or a 90s clip for Instagram Reels. The cut is frame-accurate down to 0.01 seconds, so you can hit a specific beat or word without trial and error.
When to use the audio cutter
Make a phone ringtone
Pick a 20–30 second hook from a song, fade out the last second, export at 320 kbps. On iPhone, import the MP3 into GarageBand and share as a ringtone; on Android, drop the file into the Ringtones folder.
Trim voice memos and call recordings
Cut the dead air at the start and end of a voice memo before sharing — works on iPhone Voice Memos exports (.m4a), Android recorder files, and WhatsApp / Telegram voice messages saved as files.
Prep podcast and interview clips
Slice a single quote out of a 60-minute podcast for social, or trim the intro music off a raw recording before sending it to your editor. WAV export keeps original quality for further processing in Audacity, Reaper or Logic.
Audio for TikTok, Reels and Shorts
Cut a song or sound bite to fit TikTok's 60-second limit or Reels' 90-second window. Frame-accurate handles let you sync the drop to a specific visual beat.
Frequently Asked Questions
How do I cut a song online for free?
Drop the MP3 onto this page, wait for the waveform to render, then drag the green start handle and red end handle to mark the segment you want to keep. Click Cut, then Download — you get back a single MP3 (or WAV) of just the highlighted part. No sign-up, no watermark, no length limit beyond what your browser can hold in memory (roughly up to ~150 MB).
Will this trim my MP3 without re-encoding?
Honestly — no. To be transparent: the file is decoded into raw PCM audio in your browser, the segment you keep is cut from that PCM, then re-encoded back to MP3 with lamejs. That's one generation of MP3 loss. In practice it's inaudible at 256–320 kbps, but if you need a bit-exact, lossless cut, choose WAV export instead — WAV stores PCM samples directly with no codec involved. Tools that advertise "no re-encode" cut on MP3 frame boundaries, which is fast but rounds your start/end times to roughly 26 ms increments.
What audio formats does this support?
Input: anything the Web Audio API can decode in your browser — MP3, WAV, M4A (the iPhone AAC format), OGG, OPUS, FLAC, AAC, WebM audio. Output: MP3 at 128 / 192 / 256 / 320 kbps, or lossless 16-bit WAV at the original sample rate.
How do I make a ringtone for my phone?
Cut a 20–30 second segment (Apple caps custom ringtones at 40 seconds, Android has no hard limit) and export at 320 kbps MP3. On iPhone: open GarageBand → import the MP3 → long-press the track → Share → Ringtone. On Android: connect to a computer and copy the MP3 into the /Ringtones folder, or use Files → Move → Internal storage → Ringtones, then pick it in Settings → Sound.
Can I cut a WhatsApp or Telegram voice message?
Yes. In WhatsApp, tap the voice message → share → save to Files. In Telegram, long-press → Save to Downloads. Both save as M4A or OGG, which the cutter accepts directly. Since everything runs in your browser, private voice notes never leave your device.
Can I cut audio from a YouTube video?
Not directly — this tool doesn't download from YouTube, and we won't add it because YouTube's terms of service prohibit it. The workflow if you have rights to the audio: use a YouTube-to-MP3 service you trust (or yt-dlp on your own machine), then drop the resulting MP3 into the cutter.
What's the maximum file size?
There's no hard cap set by us — the practical limit is your browser's memory budget. Files up to ~150 MB (roughly 2–3 hours of MP3) work on a typical laptop. On phones the practical ceiling is closer to 50–80 MB. If decoding stalls on a very large file, split it first in a desktop tool.
Does it work on mobile?
Yes — Safari on iPhone and Chrome on Android both support file upload, finger-drag on the waveform handles, and download. iOS requires a tap to start audio preview the first time (an iOS policy, not our limit), but trimming and export work straight away. No app install.