MP3 / WAV Cutter and Joiner

Trim your audio file on a waveform, or merge several tracks into a single file. Download the result as MP3 or WAV.

Runs 100% in your browser — your audio files are never uploaded to a server.
Drag an audio file here or click to select
MP3, WAV, M4A, AAC, OGG, FLAC — pick one file to trim
Merge order

Tracks are joined end to end in the order above. Drag and drop again to add more files.

How Does MP3 / WAV Cutting and Merging Work?

This tool opens (decodes) your audio file with your browser's Web Audio engine, turns it into samples, and processes it right on your device. In "Cut" mode you pick a start and end point on the waveform; the tool writes only that range to a new file. In "Merge" mode the tracks you select are appended end to end in the order you list them; files with a different sample rate or channel count are resampled to a common format before merging.

The most common uses are trimming just a section of a song (e.g. a ringtone), cutting silence from the start and end of a podcast/recording, or joining voice notes recorded in pieces into a single file. You can download the result as MP3 (small file, broad compatibility) or WAV (lossless, edit-friendly). When you choose MP3, you can also pick the bit rate that controls its quality.

Your files are never uploaded to a server — all trimming, merging and encoding happens entirely on your own device, inside your browser. That's an important privacy advantage when working with personal recordings or copyrighted content; unlike many online "MP3 cutter" sites, your file never touches a third-party server.

Try This Next

Finished here? These might be your next step.

Media ConverterMP4↔MOV↔WebM, extract MP3/WAV from video, MP3↔WAV — convert in your browser.Video Cutter & JoinerTrim MP4 videos with a preview and merge clips into one.Image CompressionShrink photos in your browser; you control the quality.

Frequently Asked Questions

No. Trimming, merging and MP3/WAV encoding all happen on your own device, inside your browser. It's safe to use for personal recordings too.

Any format your browser supports: MP3, WAV, M4A/AAC, OGG and, in most browsers, FLAC. You can export the result as MP3 or WAV.

MP3 produces a much smaller file and plays everywhere — ideal for turning your own recordings into a ringtone or archiving them. WAV is lossless (no quality loss) and preferable if you'll keep editing in another editor, but the file is much larger.

Yes. Files with different sample rates (e.g. 44.1 kHz / 48 kHz) or channel counts (mono/stereo) are automatically resampled to a common format before merging, so the output is a single consistent file.

There's no hard limit, but since everything is processed in your device's memory, very long recordings can strain memory (especially on mobile). Clips of a few minutes work smoothly.

Technically the tool processes any audio file you upload and downloads nothing on your behalf. But you should only use files you own or otherwise have the right to cut, merge and share — reproducing or sharing someone else's copyrighted content without permission may be unlawful.

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