Stereo Widener

Key Features

• Stereo Expansion: Push the Left and Right audio channels further apart to create a wider soundstage.
• Safe Bass Mode: Smart crossover keeps frequencies below 150Hz centered. This ensures your kick drum and bass line stay powerful and punchy.
• 3D Depth: Use psychoacoustic delays to make the audio feel like it's surrounding you.
• Adjustable Width: Control the intensity. Use "Subtle" for a professional master or "Super Wide" for a special effect.
• Format Friendly: Supports popular video formats (MP4, MKV) and audio formats (MP3, WAV).
• No Watermark: 100% free for personal and commercial use.

How do I use it?

It's simple: Step 1: Upload your Song/Video. Step 2: Adjust the Width and Depth sliders. Step 3: Click "Expand Audio".

How do I download?

Once expanded, the preview will update. Simply click the large Download Video button to save the improved file.

Is this tool free?

Yes, this tool is 100% Free. Perfect for musicians, podcasters, and video editors.

What files can I upload?

You can upload standard video files like MP4, MKV, and WebM or audio files like MP3 and WAV.

Privacy & Security

Your privacy is our priority. Since this tool runs Client-Side (in your browser), your media files are never uploaded to our servers.