Upload a watermarked image and find out how well it holds up against AI-powered removal tools. Get a resistance score, see a simulated removal comparison, and learn exactly where your watermark stands.
Drop your watermarked image here or click to browse
Supports PNG, JPG, and WebP — max 10 MB
Analyzing watermark resistance… this may take a few seconds.
Analyzing…
Select any image that already has a watermark applied. The tool accepts PNG, JPG, and WebP formats up to 10 MB.
A Sobel-based edge detector scans your image to locate watermark boundaries and measure how sharply the watermark stands out from the surrounding pixels.
The tool runs a simplified inpainting simulation that mimics how AI removal tools blur and fill in watermark regions, then compares the result against the original.
Using opacity, edge strength, coverage area, and color contrast data, the tester calculates a 0–100 score that reflects how difficult your watermark would be for an AI tool to remove cleanly.
Strong watermarks share a few common traits. Apply these techniques when creating watermarks to maximize resistance.
A repeating tiled pattern covers more of the image. Removing dozens of small watermarks is far harder than erasing a single centered one.
Low-opacity watermarks blend into the background and can be removed with simple blurring. Higher opacity leaves a clearer trace after any removal attempt.
Strokes and shadows create additional edges that inpainting algorithms struggle to reconstruct cleanly, increasing the overall difficulty of removal.
Our watermark tool offers a randomization option that slightly varies size, rotation, and position on each image, making batch removal inconsistent.
Our tester uses Canvas-based edge detection and frequency domain analysis to simulate how AI watermark removal tools would attempt to remove your watermark. It analyzes watermark opacity, stroke width, positioning, and color contrast to calculate a resistance score.
A score of 70–100 means your watermark is highly resistant to removal. Scores of 40–69 indicate moderate resistance, while scores below 40 suggest your watermark could be easily removed. Use anti-removal randomization to improve your score.
No. All image processing happens locally in your browser using HTML5 Canvas. Your images never leave your device, ensuring complete privacy and security.
Use tiled/repeated watermarks, increase opacity to 60% or higher, add text stroke, use multiple colors, and enable anti-removal randomization to vary watermark parameters across images.
Use our free watermark tool with anti-removal features to protect your images.
Try Our Watermark Tool →