The top 10 Zero Trust Network Access (ZTNA) tools today include Zscaler Private Access, Palo Alto Networks Prisma Access, Cloudflare Zero Trust, Cisco Secure Access (Duo), Netskope ZTNA, Fortinet ZTNA, Akamai Enterprise Application Access, Check Point Harmony SASE, Twingate, and NordLayer. These tools provide secure remote access without VPNs, using identity-based authentication, device posture verification, and application-level access control. They integrate with identity providers (IdP), single sign-on (SSO), and multi-factor authentication (MFA) while offering granular policy management, real-time threat detection, analytics dashboards, and reporting tools. Enterprise platforms like Zscaler, Prisma Access, and Netskope are best for large global organizations with advanced security needs, while Cloudflare, NordLayer, and Twingate are easier to deploy and suitable for SMBs and mid-market businesses. Overall, these ZTNA tools differ mainly in deployment complexity, scalability, integration capabilities, and performance for distributed users.