The present invention relates to a method to detect online privacy violation. The method comprising steps of embedding a tracker into a web browser to open at least one data consumer website or at least one third party website wherein a user submits at least one data value into their corresponding data field in a data consumer website; generating one or more privacy profile using the tracker wherein the profile assists the user to select one or more data fields as per the user preferences; capturing the user selected one or more data fields and their corresponding plurality of browsing history using the tracker; storing the profile and the plurality of browsing history into at least one database; triggering of the tracker for detecting online privacy violation in a third party website and submitting at least one data field into at least one input field to detect online privacy violation for the submitted data field.