Media Tools

Online Audio Trimmer | Cut MP3, WAV, FLAC and More

Trim audio online. Upload your audio file, set precise start and end points, and cut audio in seconds.

Media Tools cuts one continuous section from a supported audio file and exports it as MP3. The operation runs locally with FFmpeg.wasm, so the file is not uploaded to the Media Tools server.

Drag and drop an audio file here, or click to select

MP3, WAV, OGG, M4A, AAC, FLAC, WMA, AIFF

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Precision Audio Trimming

Set start and end times in hundredths of a second; codec frames can affect the exact audible boundary.

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Common audio inputs

Accepts common inputs such as MP3, WAV, OGG, M4A, AAC, FLAC, WMA, and AIFF when supported by the included FFmpeg build.

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Confidential Audio Processing

We don't upload your files to our servers. Audio trimming happens entirely on your device to ensure maximum privacy and data protection.

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Cutting Audio in Your Browser

Trimming audio without complex software installations - just open and start trimming.

Predictable MP3 output

The selected section is re-encoded to a high-quality MP3 so the download format and filename stay consistent.

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Browser and device limits

Large or high-resolution files need more memory and time, and may fail on memory-constrained devices.

Audio trimming uses and limitations

How does the online audio trimmer work?

Choose a supported audio file, set the start and end times, and click Trim. FFmpeg.wasm reads and processes the file in browser memory, then exports the selected section as MP3.

What can the audio cutter do?

It extracts one continuous section from a supported audio file without desktop software. The controls accept hundredths of a second, while codec framing can move the exact audible boundary slightly.

How to cut audio online in your browser

Complete Audio Trimming Toolkit

Extract a podcast excerpt, shorten a recording, prepare a voice clip, or make a simple ringtone. For multitrack editing, fades, effects, or sample-accurate work, use a dedicated audio editor.

Does Media Tools upload the audio?

The trimmer reads the selected file into your browser and performs the FFmpeg.wasm operation locally. Media Tools does not send the audio file to its application server.

Comprehensive Audio Format Support

Common inputs include MP3, WAV, FLAC, OGG, AAC, M4A, WMA, and AIFF. Actual decoding support depends on the included FFmpeg.wasm build; the trimmer exports a high-quality MP3.

Precision Audio Trimming & Editing

Set start and end values in hours, minutes, seconds, and hundredths. The output is re-encoded as MP3, so timing can still vary slightly at codec-frame boundaries and lossy sources are not made lossless.

Professional Audio Workflows

Podcasters trim interviews and add intros/outros without complex DAW software. Musicians extract specific sections from long recordings for sampling and remixing. Content creators prepare audio for social media, YouTube videos, and marketing materials. Audiobook producers trim chapter files and export in multiple formats. DJs create custom edits and remixes. Voice actors extract best takes from recording sessions. Radio producers edit segments and prepare broadcasts.

Audio trimmer FAQ

How do I cut audio online with Media Tools?

Choose a supported audio file, set the start and end times, select Trim, then download the selected section as an MP3 file.

Does Media Tools upload my audio file?

No. The trimmer reads and processes the file in your browser with FFmpeg.wasm; the audio is not sent to the Media Tools application server.

Is there a maximum audio file size?

Media Tools does not set an upload limit because there is no media upload, but browser memory, device hardware, file duration, and codec complexity impose practical limits.

Which audio formats can I trim?

Common inputs include MP3, WAV, FLAC, OGG, AAC, M4A, WMA, and AIFF. Decoding support ultimately depends on the included FFmpeg.wasm build. The trimmed download is MP3.

Is the audio cut sample-accurate?

The time controls accept hundredths of a second, but codec frames and re-encoding can shift the exact audible boundary slightly. Use a dedicated audio editor for sample-accurate work.

Why can a large audio file be slow or fail?

The browser must hold the file and WebAssembly processing data in memory. Closing other tabs, using a desktop browser, or selecting a smaller source file can help.

Processing model: FFmpeg.wasm overview.