Cut and trim audio files in seconds. MP3, WAV, M4A, OGG, FLAC, AAC supported. Free, no signup, no watermark.
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100% in your browser, your files never leave your device. Free, no sign-up.
Drop in your audio
Drag an MP3, WAV, M4A, OGG, FLAC or AAC file into the cutter. Nothing is uploaded. It opens instantly on your own device.
Mark the cut
Drag the start and end handles over the waveform to select exactly the section you want, and preview it before committing.
Download the trimmed clip
Export the selection in your chosen format, or send it straight to transcription for a searchable, speaker-labelled text version.
Frequently Asked Questions
Everything you need to know before using Audio Cutter
How do I cut MP3 online?
Drop your MP3 into the Autrans cutter, drag the start and end handles to the section you want, and click Download. The trimmed file lands in your downloads folder in seconds, no install, and no account, for files up to 50 MB.
Is there a free audio cutter without watermark?
Yes. The cutter is genuinely free, with no account and no watermark. It runs entirely on your own device, which is why it costs us nothing to give away. Files up to 50 MB; signed in on Pro, up to 500 MB.
How do I trim audio without losing quality?
Lossless formats (WAV, FLAC) trim with zero quality loss. Lossy formats (MP3, AAC, OGG) re-encode at high VBR to keep the cut clean. For an exact-cut without any re-encode, output to WAV or FLAC.
Can I cut audio on iPhone or Android?
Yes. Autrans runs in any browser. On Android, install Autrans as a PWA and the cutter works offline. iPhone Safari works in-browser; sub-60 second clips return almost instantly.
Is uploading audio safe?
Nothing is uploaded. The cutter runs entirely on your own device, so there is no copy on our servers to keep private, retain or delete, and it works the same with your connection off.
How long can the audio file be?
There is no time limit. The only cap is file size: 50 MB without an account, 500 MB on Pro. Only the window you mark gets processed, so trimming a clip out of a long recording is no slower than trimming a short one.
Convert voice-noted skit ideas and improvised dialogue into text scripts with speaker labels, ready to edit and reuse. See the exact price before you pay.
All part of Autrans's free audio toolbox, quick, private, browser-based tools for the everyday audio jobs creators and teams actually do: cut, convert, compress, join, record. No sign-up, no watermarks, nothing leaves your device.
Your next conversation deserves to be remembered.
Capture it with Autrans and turn it into a transcript you can search, understand, and share.