Is my audio uploaded to a remote server?

No. All cutting, splitting, and merging happens locally inside your browser using client-side processing. Your audio files stay on your machine and are never transmitted over the internet.

Is there a file size limit for long recordings?

No. Because the processing uses your local device memory rather than a remote cloud server, you can trim long podcasts, voice recordings, and DJ sets of any size without upload restrictions.

Can I combine multiple audio clips into one file?

Yes. You can add multiple MP3 or WAV files, arrange them in the sequence you want, apply fade effects, and export the combined result into a single continuous track.

What audio file formats are supported?

The tool supports MP3, WAV, M4A, AAC, FLAC, and OGG formats for input, and lets you export clean outputs in standard MP3 or uncompressed WAV.

Audio Trimmer

Trim, cut, and join MP3, WAV, and audio tracks in your browser for free. 100% private client-side audio cutter with zero file size limits.

Select your file here to get started

or drop your file here.

.mp3.wav.m4a.ogg.flac.aac.mp4.webm.mov

Max 1000MB. 100% Private. Files never leave your device.

What to expect

Experience fast, secure, and completely private processing directly inside your web browser.

Local Device Privacy

Audio files never upload to third-party servers, keeping private recordings secure.

Instant Waveform Cuts

Zero upload lag means immediate trimming, splitting, and previewing.

Zero File Size Limits

Edit hour-long lectures, podcast episodes, or short voice memos without restrictions.

How it works

Simply upload your content, adjust your settings, and download the result instantly.

Import Audio

Select or drop your audio files into the browser editor.

Trim and Adjust

Drag the waveform handles to set start and end points or arrange tracks.

Export Audio

Pick MP3 or WAV format and save the processed track directly to your device.

Frequently Asked Questions

Get quick answers about supported formats, data privacy, and using this tool.

Audio Trimmer - Trim, cut, and join MP3, WAV, and audio tracks in your browser for free. 100% private client-side audio cutter with zero file size limits.

About This Tool

Cut, trim, and combine audio files directly in your web browser without sending your recordings to an external server. Whether you are slicing a long podcast recording, cutting ringtones from songs, or removing dead air from voice memos, this tool handles your audio files locally on your computer or phone. Unlike traditional audio editors that require bulky desktop software installations or force you to wait for slow server uploads, our trimmer processes everything via client-side web technologies. This setup gives you immediate waveform rendering, millisecond-accurate split markers, and smooth volume fades without waiting in server queues. Privacy remains absolute because your files never leave your device. You can cut sensitive voice notes, confidential interview tapes, or copyrighted music tracks with complete peace of mind, then export your finished audio file directly to MP3 or lossless WAV.

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100% Open Source & Trustworthy

Every tool on PrivateTools is fully open source and runs entirely in your browser. No server uploads. No tracking. No hidden code. You can verify the source code yourself on GitHub at any time.

Open Source Code

Full source code available on GitHub — inspect, fork, or contribute.

Verify & Audit

Read every line of code. Nothing is hidden. Total transparency.

Browser-Local Processing

Files never leave your device. Zero server uploads. 100% private.

Community & Support

PrivateTools is built by the community, for the community. Found a bug? Have a tool idea? Want to report an issue? We'd love to hear from you. Every contribution makes these tools better for everyone.