Canvas Fingerprinting
Identifying your device by asking your browser to draw a hidden image. Tiny differences in your GPU, drivers, and fonts make the result unique — no cookies required.
Full Definition
Canvas fingerprinting works by using the HTML5 Canvas API to draw an invisible image that includes text, gradients, and shapes. The rendered output is converted to a Base64 string and hashed. Because every GPU, graphics driver, operating system, and font rendering stack produces slightly different anti-aliasing and pixel values, the resulting hash is highly unique to your device. Anti-detect browsers defeat canvas fingerprinting by injecting subtle noise into the canvas output — enough to produce a different hash on every profile while still looking like a real (non-headless) browser.
