Free Audio Trimmer — Cut MP3 Online

Quick answer: Free online audio trimmer and MP3 cutter. Trim, split at the playhead, delete segments, and reorder parts on a timeline in your browser. No upload, no watermark, no account — the file never leaves your device.

An audio trimmer cuts an audio file down to the parts you actually want. Audio Forge Pro loads your MP3, WAV, M4A, or OGG into a dark timeline with a waveform and a playhead: split at the playhead, select and delete any segment, drag the remaining parts into a new order, and export the result as one file. Everything is rendered in your browser — there is no upload and no watermark.

Audio Forge Pro is a free browser-based audio trimmer and MP3 cutter built by M Zeshan (ShanX). It trims MP3, WAV, M4A, AAC, OGG, and FLAC files and exports MP3 (320/192/128 kbps) or WAV. Editing uses the Web Audio API and lamejs. Files never leave the device.

How to Trim Audio (No Software)

1. Drop your audio file: Add an MP3, WAV, M4A, AAC, OGG, or FLAC file. It is decoded locally with the Web Audio API and drawn as a waveform on the timeline — nothing is uploaded.
2. Split at the playhead, delete what you don't need: Move the playhead, press Split, and the clip becomes two segments. Select any segment to delete it, or reorder the remaining segments until the edit sounds right.
3. Export the trimmed audio: The remaining segments are merged back into one continuous track and downloaded as MP3 (320/192/128 kbps) or lossless WAV. Free, instant, no account.

Timeline editing in the browser

• Waveform timeline with a movable playhead.
• Split at the playhead to create segments.
• Select and delete any segment — including one in the middle.
• Reorder the remaining segments, then merge and download.
• No upload, no watermark, no account, no daily cap.

Audio Trimmer — Frequently Asked Questions

How do I trim an MP3 online for free?

Open the Audio Forge Pro audio trimmer, drop your MP3, drag the start and end handles (or split at the playhead and delete what you don't need), then press Export. It is free, needs no sign-up, and the file is processed entirely in your browser.

Is my audio uploaded anywhere?

No. The file is decoded, edited, and re-encoded on your own device with the Web Audio API and lamejs. Nothing is sent to a server, so interviews, voice notes, and unreleased music stay private.

Can I cut a section out of the middle?

Yes. Put the playhead where the unwanted part starts and split, move to where it ends and split again, then select the middle segment and delete it. The remaining parts are joined back together on export.

Can I reorder parts of the audio?

Yes. After splitting, every segment can be moved left or right on the timeline, so you can reorder takes or move an intro to the end without opening a desktop editor.

Does trimming reduce audio quality?

The cut itself is sample-accurate and lossless. Only the export re-encodes: MP3 320 kbps is transparent for speech and most music, and WAV keeps the audio exactly as it was decoded.

What file formats can I trim?

MP3, WAV, M4A/AAC, OGG/Opus, FLAC, and WebM audio work in modern Chrome, Edge, Safari, and Firefox. Support follows the codecs your browser already has; unreadable files are reported rather than half-processed.

Is there a file size or length limit?

Single files up to 500 MB are accepted and the exported result can be up to 90 minutes. Editing happens in memory, so long files are smoothest on a desktop browser.

Will the cuts click or pop?

No. A short fade guard is applied at every cut edge, so segments join cleanly instead of producing the click you get from a raw byte-level cut.

Can I trim audio on my phone?

Yes. The timeline is touch-friendly and works in mobile Chrome and Safari. For very long recordings a desktop browser has more memory headroom.

How is this different from a desktop editor?

There is nothing to install and no project file. For quick jobs — cutting an intro, removing a mistake, exporting a 30-second clip — the browser trimmer is faster, and you can chain it into the silence remover, LUFS normalizer, or joiner on the same site.

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