Online Audio Compressor

Online Audio Compressor is a comprehensive and free audio processing utility designed for users needing to reduce file size or convert formats. It fully supports a wide range of input formats including MP3, WAV, FLAC, M4A, AAC, OGG, Opus, and AIFF. All processing is performed locally within your browser, eliminating the need to upload files and ensuring maximum data privacy and security.

• Smart Compress (Lossy): Tailored for MP3, M4A, and AAC. Features a 5-level slider to balance between \"Extreme Size Reduction\" and \"Max Quality\", ideal for web sharing and saving storage.
• Lossless/Convert: Focuses on standardization, allowing conversion to lossless formats like FLAC and WAV, or optimizing existing files without quality loss.

2. Advanced Customization: Meets professional needs with adjustable Sample Rate (from 8kHz phone quality to 96kHz studio grade), Mono/Stereo Channel switching, and Volume gain control.

3. Metadata Stripping: Supports one-click removal of Metadata. Metadata refers to non-audio information embedded in the file (such as cover art, artist name, album info). Removing it can slightly reduce file size without affecting audio quality.

4. Opus Optimization: Specially optimized for the next-generation Opus codec, automatically matching the best sample rate (48kHz) to prevent encoding errors and deliver superior compression results.

Whether you need to batch compress recordings or convert lossless music to a universal format, Online Audio Compressor provides a secure and efficient solution.