FingerprintJS, the open-source browser fingerprinting service with the most accurate identification rate on the web, raised $32 million in Series B funding led by Craft Ventures with participation from existing investors Nexus Venture Partners and Uncorrelated Ventures. FingerprintJS aids developers in building best-in-class fraud detection with flexible APIs capable of identifying fraudsters even when they attempt to conceal their identity online. The FingerprintJS platform stems fraud without increasing customer friction, accurately identifying 99.5% of returning web browsers in less than 500 milliseconds of processing time. The new funding brings the company's total funding to-date to $44 million.