Audio Toolbox
Free online audio tools that run entirely in your browser. No uploads, no privacy concerns.
音頻格式互轉
MP3, WAV, FLAC, OGG, AAC
音頻提取
Video to MP3 or WAV
音頻裁剪
Cut, fade in, fade out
音頻合併
Join multiple files
All Audio Processing Is 100% Local
Your audio files never leave your device. All conversion, extraction, trimming, and merging is done using FFmpeg.wasm directly in your browser. No data is uploaded to any server, ensuring your privacy and security at all times.