The Career Adapt-Abilities Scale (CAAS; Savickas & Porfeli, 2012) has become one of the most widely used questionnaires to assess career adaptability. To facilitate the integration of this instrument into large surveys, in varied settings with different populations, the aim of this article was to develop a briefer version consisting of 12 items, the CAAS-SF. A sample of 2,800 French and German-speaking adults living in Switzerland (Mage = 41.2, SD = 9.4) completed the 24-item version of the CAAS. On a first random subsample, item-reduction using principal component analyses highlighted a four-factor solution corresponding to the original CAAS. Confirmatory factor analyses, conducted on a second random subsample, confirmed the hierarchical factor structure of the short version. The CAAS-SF reached measurement equivalence across linguistic and gender groups. Furthermore, the 12 and 24-item versions were strongly associated. Overall, the results supported the CAAS-SF as pertinent and economical alternative to the 24-item version.