To attract clients as a freelance software developer, start by building a strong online presence. Create a professional website showcasing your skills, experience, and portfolio. Use social media to share your work and engage with potential clients. Network with other professionals in your industry and attend networking events to expand your reach. Offer valuable content, such as blog posts or tutorials, to showcase your expertise and attract clients. Additionally, provide excellent customer service and deliver high-quality work to build a positive reputation and generate referrals. By marketing yourself effectively and providing exceptional service, you can attract clients and grow your freelance business.