The DIGIT sensor is a compact, low-cost, and high-resolution vision-based tactile sensor designed for in-hand robotic manipulation tasks. It improves upon traditional tactile sensors by offering a smaller form factor, enhanced durability, and streamlined manufacturing, making it suitable for multi-fingered robotic hands. DIGIT utilizes an elastomer surface to measure contact forces via image deformation captured by an embedded camera, delivering precise tactile feedback. Its modular design allows easy replacement of components, supports task-specific elastomers, and ensures robustness under repeated use. With a cost of approximately $15 per unit in batch manufacturing, DIGIT provides an accessible and effective solution for tactile sensing in robotics.