All nurses must have a minimum set of competencies in nursing informatics (NI). Online, reliable, and valid tools for self-assessment of one's skill level with a set of NI competencies were lacking. Research team followed a systematic process to design, develop, and pilot test an online tool based on the TIGER Initiative competencies. Tool, known as TANIC, addresses 3 competency areas: basic computer, information literacy, and clinical information management. Pilot test was conducted by inviting participants in a nursing informatics online forum to become respondents. The content validity index (CVI) approach was used to estimate content validity. Values ranged from .9 to 1.0 with an average of .98, demonstrating acceptable content validity. Internal consistency reliability results were: basic computer (.948), information literacy (.980), and clinical information management (.944). TANIC was determined to be a reliable, valid, and usable online tool.