Grayscale Image

What is Grayscale Image?

Grayscale Image is a free online tool that turns color photos into grayscale or black and white instantly in your browser. You can upload JPG, PNG, or WebP files, then choose from four conversion methods: Weighted, Average, Maximum, or Minimum. It also lets you fine-tune brightness and contrast for a better final look. Everything runs locally on your device, so your images stay private and never get uploaded. The tool is simple to use, fast, and has no watermarks, registration, or limits. It’s made for anyone who wants quick black-and-white edits for photography, design, web use, or image processing.

Key features

• Converts images to grayscale instantly in your browser.
• Offers Weighted, Average, Maximum, and Minimum conversion methods.
• Includes brightness and contrast controls with real-time preview.
• Processes files locally for privacy and faster results.
• Supports JPG, PNG, and WebP uploads up to 10MB.
• Downloads clean PNG output without watermarks or signup.