StevenBlack/hosts is a unified hosts file project that aggregates blocklists from multiple reputable sources to filter ads, malware, ransomware, and other unwanted content at the DNS level. Developers can use it to quickly deploy network-wide blocking without modifying individual applications, with optional modules for filtering porn, gambling, and social media. The project provides both pre-built hosts files and a Python build system to customize which blocklists to include based on specific needs.

155 open issues · last updated Jul 21, 2026