Whiteboard Sketch Converter

Convert whiteboard photos into clean, readable images. Automatically enhance contrast, remove shadows, and sharpen ink strokes for crisp results. Choose from multiple processing modes or fine-tune with manual sliders. 100% free and private — everything runs in your browser.

📋

Upload Your Whiteboard Photo

Drag & drop an image here, or click to browse

Supports JPG, PNG, and WebP

Ad Placeholder

How to Use

  1. Click "Select Image" or drag and drop a whiteboard photo (JPG, PNG, or WebP) into the upload area.
  2. Choose a processing mode: "Auto Clean" works best for most photos, "High Contrast" for faded markers, or "Black & White" for a crisp binarized look.
  3. Fine-tune the result with the Brightness, Contrast, and Threshold sliders.
  4. Compare the original and enhanced images side by side, or toggle to the result-only view.
  5. Click "Download PNG" to save the cleaned-up whiteboard image to your device.

Frequently Asked Questions

What does this tool do?

The Whiteboard Sketch Converter takes a photo of a whiteboard and enhances it into a clean, readable image. It automatically balances the white background, removes shadows and uneven lighting, increases contrast so ink and marker strokes stand out, and optionally sharpens text for maximum clarity.

What are the best photo conditions for good results?

For the best output, take the photo straight-on (not at an angle), ensure the entire whiteboard is in frame, and use even lighting to minimize harsh shadows. Avoid camera flash directly on the board, as glare can wash out areas. Natural or overhead lighting works best.

How can I get the highest quality result?

Start with "Auto Clean" mode, which works well for most whiteboard photos. If the marker strokes are faded, switch to "High Contrast" mode. For a document-like look, use "Black & White" mode and adjust the threshold slider until text is sharp and the background is fully white. Fine-tune brightness and contrast sliders for the final polish.

What image formats are supported?

You can upload images in JPEG, PNG, and WebP formats. The processed result is always downloaded as a high-quality PNG file, which preserves sharpness and is ideal for sharing or printing.

Is my data private?

Yes, completely. All image processing happens entirely in your browser using the HTML5 Canvas API. Your photos are never uploaded to any server. Nothing leaves your device, so your whiteboard content stays fully private and secure.

Ad Placeholder