--- title: "Audio Trimmer" description: "Cut and trim audio files online. Set precise start and end points with waveform preview. No upload — runs in your browser." url: https://findutils.com/media/audio-trimmer/ category: media --- # Audio Trimmer Cut and trim audio files online. Set precise start and end points with waveform preview. No upload — runs in your browser. **Use this tool:** [Audio Trimmer](https://findutils.com/media/audio-trimmer/) ## Programmatic access - Browser-only: this tool works on a file, the DOM, or a browser API and has no REST or MCP id. ## Why use our Audio Trimmer? Our audio trimmer cuts a section out of an audio file without sending it anywhere. Whether you need to remove silence, drop an intro, or pull one segment out of a long recording, you set the start and the end on the waveform and export just that piece. The audio is decoded and cut in your browser with the Web Audio API, so the file itself stays on your device. Input covers MP3, WAV, OGG, FLAC and AAC up to 100 MB, and the output is always a lossless WAV. ## Tips for Better Audio Trimming - Zoom into the waveform to place your start and end markers with frame-level precision, especially when trimming speech or musical beats. - Always use Preview Trim before exporting to confirm your selection sounds natural without abrupt cuts. - For clean cuts, try to trim at zero-crossing points in the waveform where the signal crosses the center line. This prevents audible clicks or pops. - If you need a specific output format like MP3 or OGG instead of WAV, run the trimmed file through the Audio Format Converter immediately after downloading. - Keep the original file untouched. Since this tool never modifies your source, you can re-trim with different start and end points as many times as needed. ## Frequently Asked Questions ### Is this audio trimmer free? Yes. The audio trimmer is free, with no signup, no watermark and no usage limit. It accepts files up to 100 MB and writes a lossless WAV. ### Are my files uploaded to a server? No, not the file. The audio is decoded and cut in your browser, and the tool code sends no part of it to a server. The page itself loads analytics and ad scripts, as most websites do, so a network monitor shows requests from those. They are separate from the tool code. ### What audio formats are supported? Input covers MP3, WAV, OGG, FLAC and AAC, and the output is always a lossless WAV. Decoding uses the browser's own audio decoders, so FLAC and OGG support depends on the browser you are in. ### Will trimming reduce audio quality? No. The trimmer writes lossless WAV, so the cut section keeps the quality it had after decoding and nothing is re-compressed on the way out. What it cannot do is improve a lossy source: an MP3 trimmed to WAV keeps exactly the quality the MP3 had. ### Is there a file size limit? Yes. The trimmer accepts files up to 100 MB and refuses anything larger before decoding starts. Within that cap, a long file takes longer to open, because the whole track is decoded in your browser before the waveform appears. ### Can I trim MP3 files without converting them? No. The trimmer accepts MP3 input, but it decodes the audio with the Web Audio API and writes the result as lossless WAV rather than re-encoding a new MP3. That avoids a second round of compression loss. If you need MP3 output, run the trimmed WAV through the Audio Format Converter. ### How do I cut a specific section from the middle of an audio file? Set the start time to where your desired section begins and the end time to where it ends. Use the waveform display to visually identify the segment, then click Preview Trim to listen before exporting. ### Can I use this tool to make ringtones? Absolutely. Trim your song to 30 seconds or less, download the WAV file, then convert it to your phone's preferred format using our Audio Format Converter. Most phones accept MP3 or M4R ringtones. ### Does the audio trimmer work on mobile devices? Yes. The tool runs entirely in your browser using the Web Audio API, so it works on modern smartphones and tablets. Performance depends on your device's processing power and available memory. ### Can I trim multiple audio files at once? No. The tool processes one file at a time, so the waveform and the preview always match the file you are about to download. Load a file, set the start and end points, trim, download, then reset for the next one. ## Related Tools - [Audio Format Converter](https://findutils.com/media/audio-format-converter/) - [Audio Resampler](https://findutils.com/media/audio-resampler/) - [Extract Audio from Video](https://findutils.com/media/video-to-audio/) - [Video Trimmer](https://findutils.com/media/video-trimmer/) - [Audio Metadata Extractor](https://findutils.com/media/audio-metadata-extractor/) - [Video to GIF Converter](https://findutils.com/media/video-to-gif/) - [Video Compressor](https://findutils.com/media/video-compressor/) - [Voice Recorder](https://findutils.com/productivity/voice-recorder/)