The study aimed to develop and validate a tool for measuring the techno-pedagogical skills of high school teachers. The initial draft of the tool comprised 50 items distributed across three dimensions namely technological knowledge, techno-pedagogical knowledge, and creativity and innovation. A pilot study was conducted employing the test–retest method to determine the reliability of the draft tool. Following the analysis, the final tool consisted of 47 items. Item-total correlation was examined alongside item difficulty and discrimination indices. Content validity was established through expert review, and the reliability coefficient of the tool was calculated. Items with a reliability value below 0.50 were eliminated and the final tool of the techno-pedagogical skills questionnaire was standardized.