Linear is a product development system designed for teams and agents. Originally launched as an issue tracker, it has evolved into a comprehensive system for planning and building products. Linear is purpose-built for speed and quality, aiming to streamline workflows from drafting PRDs to pushing code changes. Founded by Karri Saarinen, Jori Lallo, and Tuomas Artman, the company operates as a fully remote team across North America and Europe. Today, over 25,000 teams—including OpenAI, Vercel, and Ramp—use Linear to focus on high-velocity software craftsmanship.