Set start and end points
Choose a valid range within the decoded duration and preview it before exporting.
Media Tools · Local processing
Audio Trimmer
Cut a selected range from browser-decodable audio and export WAV.
Sample-accurate WAV export
Audio Trimmer
Media is decoded, transformed, and encoded locally. Nothing is uploaded to any server.
Choose audio to preview it and select a precise time range.
The practical guide
Trim audio precisely while keeping the real output format clear.
The browser decodes the source, the selected time range is copied into a new audio buffer, and the result is encoded as an uncompressed WAV file.
Decode support varies
The browser must be able to decode the selected source format. Support differs across browsers and operating systems.
WAV output tradeoff
WAV avoids pretending to create MP3 or AAC, but it is usually much larger than compressed audio with similar duration.
Privacy by architecture
Your files and tool inputs stay in your browser.
The selected files, inputs, settings, and outputs are processed in this page and are not uploaded to any server.
Questions, answered
Frequently asked questions
Which format does the tool download?
It exports WAV, regardless of the original compressed source format.
Why will a file not open?
Your browser may not decode its codec or container, even if another application can play it.
Does trimming reduce quality?
The source is decoded and written as PCM WAV; it is not copied as the original compressed bitstream.
Is audio uploaded?
No. Decoding, trimming, preview, and export happen locally.