音频裁剪器
通过波形可视化裁剪音频文件
上传音频文件
支持 MP3、WAV、OGG、FLAC、AAC、M4A
使用方法
上传您的文件
拖放文件或点击浏览。您的文件留在浏览器中。
调整设置
配置选项以获得您所需的精确结果。
下载结果
即时处理并下载您的文件——无需等待，无需上传至服务器。
为什么使用此工具
100% 免费
没有隐藏费用，没有付费等级——所有功能完全免费。
无需安装
完全在浏览器中运行。无需下载或安装任何软件。
隐私且安全
您的数据永远不会离开您的设备。不会上传至任何服务器。
支持移动设备
完全响应式设计——在手机、平板或桌面电脑上均可使用。
您的文件保持私密
此工具完全在您的浏览器中处理文件。不会上传至任何服务器——您的数据永远不会离开您的设备。
- 无服务器上传——100% 客户端处理
- 不存储数据——关闭标签页时文件即被丢弃
- 无需账号——无需注册即可立即使用
How to Trim Audio Files in Your Browser
Key Takeaways
- Audio trimming removes unwanted sections from the beginning or end of a clip without re-encoding the entire file.
- The Web Audio API decodes audio into raw PCM data, enabling precise sample-level trimming in the browser.
- All processing happens locally — your audio files are never uploaded to any server.
Trimming audio is one of the most common editing tasks. Whether you need to remove silence from a recording, cut a clip to a specific length, or extract a section from a longer file, a browser-based audio trimmer lets you do it instantly without installing software. This tool decodes your audio using the Web Audio API and lets you select the exact portion to keep.
384 kHz
Max sample rate supported
Common Use Cases
Podcast Episode Editing
Remove dead air, coughs, or false starts from the beginning and end of podcast recordings before publishing.
Ringtone Creation
Select a 30-second section from a song to create a custom ringtone or notification sound for your phone.
Sample Preparation
Isolate specific drum hits, vocal phrases, or instrument loops from longer recordings to use as samples in a DAW.
Voice Memo Cleanup
Trim voice memos or lecture recordings to contain only relevant content, reducing file size and making playback quicker.
Audio Trimming Tips
Zoom into the waveform at cut points to find zero-crossing points, which prevent audible clicks at edit boundaries.
Preview your selection before exporting to ensure you haven't cut into the content you want to keep.
For speech, leave about 0.5 seconds of silence at start and end for a natural listening experience.
Export in WAV for lossless quality, or MP3 for smaller file sizes suitable for sharing online.
All audio processing is performed entirely in your browser. Your audio files never leave your device and are not uploaded to any server.